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The People's Pharmacy

Joe and Terry Graedon
The People's Pharmacy
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  • The People's Pharmacy

    Show 1475: Your Allergy Survival Guide: What Works, What Doesn’t, What’s Risky

    03/06/2026 | 1 h 10 min
    You may think of allergies as causing sniffly noses and congestion in the spring or fall. But allergies can go far beyond that. As Dr. Kari Nadeau points out in this episode, allergies can affect us from head to toe, including eyes, nose, throat, lungs, sinuses, skin and gut. In the most dangerous instances, the whole body is threatened with an anaphylactic reaction. That’s a medical emergency! One in three Americans will develop allergies at some point in our lives, so it’s important to know what works to control them.

    At The People’s Pharmacy, we strive to bring you up to date, rigorously researched insights and conversations about health, medicine, wellness and health policies and health systems. While these conversations intend to offer insight and perspective, the content is provided solely for informational and educational purposes. Please consult your healthcare provider before making any changes to your medical care or treatment.

    How You Can Listen

    You could listen through your local public radio station or get the live stream at 7 am EST on Saturday, June 6, 2026, through your computer or smart phone (wunc.org).  Here is a link so you can find which stations carry our broadcast. (Welcome, Huntsville, Alabama!) If you can’t listen to the broadcast, you may wish to hear the podcast later. You can subscribe through your favorite podcast provider, download the mp3 using the link at the bottom of the page, or listen to the stream on this post starting on June 8, 2026.

    What Are Allergies?

    We begin our discussion of your allergy survival guide with an explanation of what is happening during an allergic reaction. The immune system perceives some foreign compound, usually a protein, as dangerous even though normally it would not be. So it reacts by trying to flush the invader out by producing extra mucus. The turbinate sinuses can make one to two gallons of mucus a day, and naturally, it has to go somewhere. That’s why you might be congested. Having all that mucus in the sinuses can also encourage bacterial growth, so if the allergic reaction persists, some people have to deal with sinus infections.

    Emergency Treatment

    In determining what works, you need to know the nature of the reaction. If you have two or more organs involved, if you are having trouble breathing or if you feel dizzy, you may be in the midst of an anaphylactic reaction. What works for that is an epinephrine injection and immediate medical attention. This is potentially life-threatening, so you will want to figure out what triggered the reaction so you can avoid it in the future. Once someone has suffered one anaphylactic reaction, they should keep epinephrine with them at all times in case of another episode. Epinephrine comes as a self-injector pen or a nasal spray (neffy).

    Can You Spot Drug Allergies?

    In the warnings that are rattled off as part of a TV ad for a pricey new drug, we often hear viewers cautioned not to take the medicine if they are allergic to it. That sounds like simple common sense, but it also has a Catch 22 quality. How do you know you are allergic to a medication unless you take it–and experience an allergic reaction for which you might need treatment. Most of these presumably are immune system-mediated reactions, in which the body produces IgE. That is how allergies to penicillin or sulfa drugs work.

    Some drugs cause a different type of reaction, not IgE-mediated but dangerous nonetheless. Lisinopril is the most commonly prescribed blood pressure medicine in this country. Like other ACE (ACE is short for angiotensin-converting enzyme) inhibitor medications, lisinopril can trigger angioedema. This swelling can affect the face, lips, tongue and throat, where it can compromise breathing. The most insidious aspect of this reaction is that it can occur after the person has been taking the drug without problems for weeks, months or even years. “Red man syndrome” or infusion reactions in people taking vancomycin can likewise occur without warning.

    The last type of drug reaction is not actually an allergy at all, although people occasionally use that terminology. It is better described as sensitivity. For example, a stomachache is a common reaction to the antibiotic erythromycin. Some people are disabled by this abdominal pain and try to limit their exposure to erythromycin thereafter.

    What Works and What Doesn’t?

    Since the immune system is acting inappropriately to cause allergic reactions, treatment should involve immunotherapy. Eye drops can help eyes feel less itchy and irritated. Likewise, OTC nose drops or nasal sprays can often help the nose. The corticosteroid Flonase (fluticasone) and the antihistamine Astepro (azelastine) are good examples. During allergy season, some people find that a daily nasal wash (with a neti pot or NeilMed device) can help reduce the mucus and remove the allergens such as pollen causing the reaction. There are also oral antihistamines and inhalers for asthma. For decades now, allergists have offered their patients shots to help desensitize them to the allergen causing their trouble. Joe had these as a child and teenager and has been largely free of allergies since. Not everyone gets such lasting relief.

    Complications from Current Therapies

    Medications have side effects, and that is true of allergy medicines as with other drugs. Antihistamines, especially the older ones like Benadryl (diphenhydramine), are notorious for causing drowsiness. That’s one reason it is often included in nighttime pain relievers as the “PM” in drugs like Advil PM. We worry about regular use of such antihistamines because it has been linked to a greater risk for dementia.

    A second-generation antihistamine such as Allegra (fexofenadine) is much less likely to make someone feel sleepy. However, Dr. Nadeau has seen patients on antihistamines suffer worse allergies if they stop suddenly. The People’s Pharmacy has received hundreds of reports from people who experienced unbearable itching upon discontinuing Zyrtec (cetirizine) or Xyzal (levocetirizine). This can last for weeks.

    Doctors don’t usually worry much about steroid nasal sprays like Flonase because they are topical. Presumably, nasal tissues pick up most of the dose. Just the same, using such a nose spray day after day for a long time could result in systemic steroid exposure that is not trivial.

    Stronger Medicine

    Dr. Nadeau is enthusiastic about the benefits of two potent prescription medicines. One is Xolair (omalizumab). It was originally developed to prevent asthma, but is now approved for chronic sinusitis, food allergies and chronic hives. Paradoxically, Xolair is one of those medicines that could cause a severe allergic reaction even on the first dose, so the FDA warns that the initial injection should be given in a healthcare setting prepared to treat anaphylaxis. This is uncommon, though, occurring in 0.1 to 0.2% of patients.

    The other medication Dr. Nadeau is prescribing for allergy patients who don’t respond well to other treatments is Dupixent (dupilumab). The FDA has approved this medicine to treat a wide range of conditions, including eczema, asthma, chronic sinusitis, allergic reactions affecting the esophagus and chronic hives, among other things. Most insurance companies will not cover this pricey injection unless the patient has failed all other therapies.

    Fighting Air Pollution: What Works

    Air pollution makes allergy symptoms worse, so using an effective air filter inside the home is a good step. A HEPA (high-efficiency particulate-arresting) filter is ideal, especially as part of the air-handling system. If that’s not possible, utilizing a MERV 13 in the part of the home where you spend the most time is a good second choice.

    Sonu

    One new option for treating allergies is acoustic resonance therapy with the SoundHealth Sonu headband. It uses vibration from sound to loosen mucus from the sinuses so that they can clear. The FDA has approved its use for children as well as adults. New research was just published demonstrating its helpfulness in treating children with nasal congestion (Oto-Open, April-June 2026).

    SoundHealth has underwritten The People’s Pharmacy podcast. Dr. Nadeau has also been compensated for her role in conducting studies of this device (International Forum of Allergy & Rhinology, Dec. 2025). Since it does not employ medications, there are no drug side effects.

    This Week’s Guest

    Kari C. Nadeau, M.D., Ph.D., is Dean of the UCLA Fielding School of Public Health ( starting July 1 2026). Until then, she holds many other positions. At Harvard T. H. Chan School of Public Health she is: John Rock Professor of Climate and Population Studies; Chair of the Department of Environmental Health; and Director of the Allergy, Extreme Weather, and Exposomics Lab. Dr. Nadeau is Professor of Medicine at Harvard Medical School and serves in the Division of Allergy and Inflammation at Beth Israel Deaconess Medical Center. She is an Adjunct Professor at Stanford Medical School. Dr. Nadeau is also the co-author of The End of Food Allergy, which provides strategies for treating and preventing food allergies in children. Here is a link to the research underway in her Harvard laboratory.

    PHOTO CREDIT: STACY GEIKEN
    Taken in April 2017 at Kari Nadeau’s professorship dinner

    The End of Food Allergy: The Science-Based Plan That Turns Food into Medicine

    The People’s Pharmacy is reader supported. When you buy through links in this post, we may earn a small affiliate commission (at no cost to you).

    Listen to the Podcast

    The podcast of this program will be available Monday, June 8, 2026, after broadcast on June 6. You can stream the show from this site and download the podcast for free. This episode has additional information about Nasalcrom (cromolyn sodium nasal spray) and its effect on mast cells; alpha gal allergy to red meat; and the latest thinking on preventing peanut allergy among young children.

    Download the mp3
  • The People's Pharmacy

    Show 1474: Treating the Cause, Not Just the Symptoms, with Functional Medicine

    29/05/2026 | 57 min
    Over the years, we have spoken with scores of healthcare experts about chronic illness. Many of them attribute the problems to inflammation, which is after all a natural response to infection or injury. But not everyone has a system for locating and addressing the source of the inflammation. If you want to treat the cause, not just the symptoms of your disease, you might want to consider functional medicine.

    At The People’s Pharmacy, we strive to bring you up to date, rigorously researched insights and conversations about health, medicine, wellness and health policies and health systems. While these conversations intend to offer insight and perspective, the content is provided solely for informational and educational purposes. Please consult your healthcare provider before making any changes to your medical care or treatment.

    How You Can Listen:

    You could listen through your local public radio station or get the live stream at 7 am EST on Saturday, May 30, 2026, through your computer or smart phone (wunc.org).  Here is a link so you can find which stations carry our broadcast. If you can’t listen to the broadcast, you may wish to hear the podcast later. You can subscribe through your favorite podcast provider, download the mp3 using the link at the bottom of the page, or listen to the stream on this post starting on June 1, 2026.

    What Is Functional Medicine?

    Many people have heard of integrative medicine. We asked our guest, Dr. Susan Payrovi, how this differs from functional medicine. (She practices both.) According to Dr. Payrovi, while both approaches embrace lifestyle therapies, integrative medicine may focus on individual organ systems, just as conventional medicine does. Functional medicine, on the other hand, is more likely to focus on how the body works. What functional systems are involved when a person experiences fatigue, for example? If there is a problem with the way the body produces energy, how could that be resolved?

    If you are dealing with a problem caused by underlying inflammation, you could prescribe a potent anti-inflammatory or even a medicine that counteracts the immune system’s response to danger by blocking interleukins, for example. Or you could search upstream for the disturbance that is causing the immune system to overreact. Going upstream to find the cause is the functional medicine approach.

    Sending the Body Safety Signals

    If inflammation is a response to a danger signal, how can we let the immune system know that the body is safe? Lifestyle therapies offer some powerful interventions, even though they may sound very ordinary. Getting adequate sleep can make a huge difference for the immune system and lower inflammation dramatically. Stress management is another potent non-pharmaceutical approach. Consuming a diet rich in anti-inflammatory foods or even medicinal herbs could also contribute to a sense of safety and reduced inflammation.

    The Silo Problem of Modern Medicine

    We have spoken with many people who have struggled with a disease that manifests in multiple symptoms. They end up seeing a variety of specialists who don’t seem to communicate with each other. NO tool manages every condition. Too often, specialists pay attention only to the specific organ that they are assigned, and as a result, nobody puts the big picture together for a long time. The hope is that functional medicine would do a much better job for such patients, including those whose suffering has an emotional, psychological or spiritual aspect.

    Functional Medicine and Chronic Fatigue Syndrome

    One example where patients are demanding more of their medical care is chronic fatigue syndrome. Conventional medicine has a notoriously difficult time treating such patients. Coaching patients on small but important lifestyle changes is one approach that functional medicine can offer. Pacing and learning to prioritize are vital skills for such patients. Dr. Payrovi learned a lot about the value of such approaches in dealing with her own illness, multiple sclerosis.

    Finding a Functional Medicine Practitioner

    People looking for a functional medicine practitioner can consult the Institute for Functional Medicine. The organization lists practitioners on its website, ifm.org. So does the Academy of Integrative Health and Medicine, aihm.org.

    This Week’s Guest

    Susan Payrovi, MD, is a physician practicing Integrative and Functional Medicine at Stanford’s Center for Integrative Medicine. Dr. Payrovi is board certified in Anesthesiology, Hospice and Palliative Medicine, as well as Integrative Medicine. She has additional training in Functional Medicine and acupuncture.

    https://med.stanford.edu/profiles/susan-payrovi. Her website is drsusanpayrovi.com.

    Susan Payrovi, MD

    Listen to the Podcast

    The podcast of this program will be available Monday, June 1, 2026, after broadcast on May 30. You can stream the show from this site and download the podcast for free.

    Download the mp3, or listen to the podcast on Apple Podcasts or Spotify.
  • The People's Pharmacy

    Show 1473: How Music Heals: The Neuroscience Behind an Ancient Medicine

    21/05/2026 | 1 h
    What do you conjure up when you think of music? Perhaps you imagine a singer-songwriter telling her story. On the other hand, you might imagine a parade with a marching band, an orchestra playing an outdoor concert or a mother singing her baby to sleep with a lullaby. Regardless of the format, music acts on the brain in unique ways. Neuroscientists are learning how music heals and why healers around the world have integrated music into their rituals for millennia.

    At The People’s Pharmacy, we strive to bring you up to date, rigorously researched insights and conversations about health, medicine, wellness and health policies and health systems. While these conversations intend to offer insight and perspective, the content is provided solely for informational and educational purposes. Please consult your healthcare provider before making any changes to your medical care or treatment.

    How You Can Listen:

    You could listen through your local public radio station or get the live stream at 7 am EST on Saturday, May 23, 2026, through your computer or smart phone (wunc.org). Here is a link so you can find which stations carry our broadcast. If you can’t listen to the broadcast, you may wish to hear the podcast later. You can subscribe through your favorite podcast provider, download the mp3 using the link at the bottom of the page, or listen to the stream on this post starting on May 25, 2026.

    How Music Heals

    Dr.Elizabeth Margulis directs the Music Cognition Laboratory at Princeton University. This scientific endeavor is devoted to understanding how our brains react to music. One discovery is that music has a lot in common with infant-directed speech. It is highly repetitive with exaggerated pitch modulation. When people talk to babies, they may slow their words down a bit and raise the pitch of their voices. All of these properties make infant-directed speech a lot more like music than the rest of our everyday utterances. Caregivers around the world adopt this sort of “baby-talk” because babies pay attention longer when they do. Is music tapping into the same primal brain responses?

    Another characteristic of music is that it can trigger emotional responses. These are culturally conditioned; bagpipes do not have the same effects as Tibetan singing bowls. Howe er, the reminiscence triggered by music can be remarkably complete, putting us back in time not only to the place where we heard it before, but even to the bodily sensations that we experienced at that moment. Musical memories are exceptionally persistent. Older people with dementia who can no longer remember important facts about their own lives can often join in singing a popular song from their youth.

    The Downsides of Music

    Music may have social and political ramifications. Just imagine a chorus singing “We shall overcome,” and you will probably make assumptions about the singers and their values. As a result, we should not be surprised to learn that people may fight over music. Frequently entire generations have genre preferences such as hip hop or rock that are not shared by adjacent generations. How do we approach the music we love to hate? Can we understand how music heals even if we don’t like it very much or at all?

    Musical Daydreams Help Us Understand How Music Heals

    Dr. Margulis has studied and written about musical daydreams. What does she mean by this?

    As you watch a movie, you may appreciate the score. But even if you don’t notice it at all, the sound track influences how you understand the action on the screen. Likewise, when most people listen to a piece of music, they may create a visual to go with it. Dr. Margulis offers us an example of a snippet of music by Liszt that evokes for many people an image of a cartoon cat chasing a cartoon mouse. Needless to say, that is not what Liszt was thinking when he composed it, since cartoons did not exist at the time.

    Choosing Music for Healing

    Joe mentioned the unobtrusive but soothing music playing in the background when he has an acupuncture treatment. Dr. Margulis suggested that music activates motor areas of the brain, and that might help explain the benefit in this setting. We are still learning more about how music heals. This research may some day guide healthcare professionals in choosing music for their practices, even in the hospital.

    This Week’s Guest

    Elizabeth Margulis,PhD, is Professor and Acting Chair in the Department of Music, with affiliations in Psychology and Neuroscience. Dr. Margulis directs the Music Cognition Lab at Princeton University. Her research pursues questions that lie at the intersection of the humanities and the sciences. She was also trained as a pianist. Her most recent book is Transported: The Everyday Magic of Musical Daydreams.  Her website is https://www.elizabethmargulis.com/about

    This link takes you to the publisher’s page.

    Elizabeth Margulis, PhD, Princeton University

    The People’s Pharmacy is reader supported. When you buy through links in this post, we may earn a small affiliate commission (at no cost to you).

    Listen to the Podcast

    The podcast of this program will be available Monday, May 25, 2026, after broadcast on May 23. You can stream the show from this site and download the podcast for free.

    Download the mp3 or listen to the podcast on Apple Podcasts or Spotify.
  • The People's Pharmacy

    Show 1428: The Hidden Power of the Unconscious Brain (Archive)

    14/05/2026 | 1 h 5 min
    In this episode, a renowned neurosurgeon shares what he has learned in decades of working to restore ailing brains. His new book covers a vast range of neuroscience. Our dilemma was what to pay attention to in all those options. In a sense, that is always the human situation. We are capable of conscious processing of approximately 200 bits per second (bps) of information. Our unconscious brain deals with as much as 11 million bps.

    At The People’s Pharmacy, we strive to bring you up to date, rigorously researched insights and conversations about health, medicine, wellness and health policies and health systems. While these conversations intend to offer insight and perspective, the content is provided solely for informational and educational purposes. Please consult your healthcare provider before making any changes to your medical care or treatment.

    How You Can Listen

    You could listen through your local public radio station or get the live stream Saturday, May 16, 2026, at 7 am EDT on your computer or smart phone (wunc.org).  Here is a link so you can find which stations carry our broadcast. If you can’t listen to the broadcast, you may wish to hear the podcast later. You can subscribe through your favorite podcast provider, download the mp3 using the link at the bottom of the page, or listen to the stream on this post starting on May 18, 2026. (This show originally aired April 25, 2025.)

    The Power of the Unconscious Brain

    Our senses feed us a tremendous amount of information all the time, but we don’t have the bandwidth to pay attention to more than a small fraction of it. That’s where the unconscious brain is so valuable, juggling millions of bits of information while we focus our conscious attention on what seems important.

    One surprising outcome of the research on how our brains function is a re-assessment of what is going on when people are unconscious. For centuries, doctors thought there was really no brain activity while a person was comatose. Then, a few decades ago, a scientist was recording the brain waves of a patient in a coma. The activity was very peculiar, as if the person were watching a ball being lobbed back and forth across a tennis court. In actuality, a television set in the room was broadcasting a world championship match between Roger Federer and Rafael Nadal. The neuroscientist recognized that this individual was following the match and was not nearly as deeply unconscious as had been thought. Further research showed that this kind of unconscious brain activity is not uncommon. It may hold keys to determining who has the best potential for recovering from their coma.

    Freud and the Unconscious Brain

    If you hear the term the unconscious mind, you may think of Sigmund Freud. He really popularized the concept that some very important brain activity takes place outside of our conscious awareness. It still has a powerful influence on our behavior.

    By the way, if we recognize that our conscious attention is indeed a limited resource (200 bps, remember), we won’t try to multitask. Humans actually aren’t very good at multitasking; instead, we switch our attention from one thing to another. Some people can do that fairly easily, but for most of us, it is less effective than staying focused.

    Three Stages of Brain Development

    Evolution likes to build on what it’s already got in place, so it shouldn’t surprise us that we can track three different evolutionary stages to our human brains. The reptilian brain came first, of course, and is there as a base, operating mostly on reflex. It’s definitely an important part of the unconscious brain.

    The mammalian brain brings in emotions. The hormone oxytocin is relevant for this discussion. It is critical for birthing and nursing young. As it turns out, oxytocin can also be put to other uses, such as bonding mates together and creating friends.

    Finally, we have the primate part of our brain. We humans, like other primates, can exercise empathy because our mirror neurons allow us to relate to another creature’s experience. In fact, mirror neurons were discovered by scientists studying macaques and eating gelato. Listen for a great story!

    Speaking of empathy, we wondered about empathy fatigue. We started hearing about empathy fatigue during the COVID pandemic, when healthcare providers were overwhelmed by extreme demands with inadequate support. Research shows that “constant, repetitive exposure to the pain of others leads to empathy fatigue.” Lack of empathy can lead people to do terrible things.

    Wonders of the Unconscious Brain

    Our brains are full of clocks. To some extent, these are shaped by how we use them. Musicians who play percussion instruments can perceive time differences of just a few hundredths of a second. All of us are entrained to a 24-hour a day cycle, whether we observe sunrise and sunset or not. But if we are deprived of connection with that cycle, our internal clocks can’t keep good time, and our brains may get far off track.

    What About Premonitions?

    Some people think premonitions are a fantasy. Yet this is another area where our unconscious brain may be more capable than we imagine. Dr. Hamilton describes an experience in the Swiss Alps where he and his wife had a choice of which path to take down from the summit. One appeared to be a shortcut, and they did have some time constraints. But as soon as they had taken a few steps that direction, he had a premonition of something terrible. They took the other path and learned later that there had been a landslide on the shortcut that would have swept them helplessly down the mountain.

    According to Dr. Hamilton, some people have the ability to influence the output of random number generators. Those of us who can’t may wish to reject that idea, but it has been documented. The Princeton Engineering Anomalies Research lab has run many studies demonstrating an impact on random number generations, not to mention remote viewing. In this way, some of the hidden power of the unconscious brain appear as cerebral entanglements, analogous to quantum entanglements at the sub-atomic level of matter.

    This Week’s Guest

    Dr. Allan Hamilton, MD, FACS, is a neurosurgeon who has specialized in treating brain tumors. His extraordinary journey from janitor to Harvard-trained neurosurgeon is just the beginning of his remarkable story. A decorated Army veteran, he now holds four professorships at the University of Arizona and has been recognized as “One of the Leading Intellects of the Twenty-First Century.” As the only American honored with the Lars Leksell Award for pioneering scientific discovery in stereotactic neurosurgery, Dr. Hamilton’s groundbreaking work has revolutionized the field. He has had a life-long interest in the application of computer technologies to enhance surgical care and reduce avoidable medical adverse events. In addition, he has served on two White House Advisory Committees under two presidential administrations.

    Allan Hamilton, MD, FACS

    His expertise extends beyond medicine, having studied creative writing under Rod Serling and serving as a senior medical consultant for Grey’s Anatomy for nearly two decades. Dr. Hamilton’s seven non-fiction books have garnered numerous awards and international translations, offering insights that have inspired leaders across various fields. Dr. Hamilton’s 7th non-fiction book is Cerebral Entanglements: How the Brain Shapes Our Public and Private Lives.

    The People’s Pharmacy is reader supported. When you buy through links in this post, we may earn a small affiliate commission (at no cost to you).

    Listen to the Podcast:

    The podcast of this program will be available Monday, April 28, 2025, after broadcast on April 26. You can stream the show from this site and download the podcast for free.

    Download the mp3, or listen to the podcast on Apple Podcasts or Spotify.
  • The People's Pharmacy

    Show 1472: Beyond Lyme: Stealth Infections from Flea and Tick Bites

    07/05/2026 | 1 h 16 min
    Tick season is well underway in many parts of the country. It seems that a mild winter and a warm spring have brought the nymphs out seeking blood. If that blood is yours, you may be exposed to a range of pathogens. What’s more, ticks are not the only creatures ready to bite you. Fleas are an even bigger problem when it comes to transmitting bacteria called Bartonella. That genus is responsible for cat scratch disease and trench fever. When the infection goes chronic, it’s called bartonellosis. What are the dangers of flea and tick bites?

    At The People’s Pharmacy, we strive to bring you up to date, rigorously researched insights and conversations about health, medicine, wellness and health policies and health systems. While these conversations intend to offer insight and perspective, the content is provided solely for informational and educational purposes. Please consult your healthcare provider before making any changes to your medical care or treatment.

    How You Can Listen:

    You could listen through your local public radio station or get the live stream at 7 am EST on Saturday, May 9, 2026, through your computer or smart phone (wunc.org).  Here is a link so you can find which stations carry our broadcast. If you can’t listen to the broadcast, you may wish to hear the podcast later. You can subscribe through your favorite podcast provider, download the mp3 using the link at the bottom of the page, or listen to the stream on this post starting on May 11, 2026.

    You can watch us interviewing Dr. Breitschwerdt on YouTube.



    The Hazards of Flea and Tick Bites

    Ticks can transmit a dizzying number of pathogens, including viruses, bacteria and protozoa. Rocky Mountain Spotted Fever, for example, occurs when a tick injects Rickettsia rickettsii into a person through a bite. If not treated properly, it can be fatal. Fortunately, however, it usually responds to doxycycline. The NCSU laboratory has developed a reliable diagnostic test that picks it up quickly.

    Another tick-borne disease that has become familiar over the last few decades is Lyme disease. It is carried by deer ticks infected with Borrelia burgdorferi. If treated promptly, most people clear the disease, but sometimes it morphs into a stealth infection that is quite controversial.

    You may not think much about flea bites, but they too could be the source of a stealth infection. Fleas transmit Bartonella (and so do body lice, ants, pigeon mites, rat mites and sand flies). Cats can be infected (with three different species of Bartonella) and so can dogs (only two species). When people develop bartonellosis, it can cause liver disease and neurological problems such as headaches and memory loss. In some cases, infected people suffer seizures.

    Preventing Flea and Tick Bites

    Once Bartonella get into the body, it likes to hide. The bacteria can enter virtually any cell in the body and make itself at home. As a consequence, the immune system may have difficulty tracking it down and eliminating it. Antibiotics don’t always get to it, either. Treatments of entrenched infections need to be very intensive.

    So it is better to prevent flea and tick bites. One way is to make sure that pets are protected. Veterinarians can prescribe preventive medicine for them, either oral or topical. Another important step is to protect yourself. Wear effective insect repellent when outside or cover your long pants with permethrin-treated gaiters. And absolutely do not skip the tick check when you come inside. If you find a tick that has bitten you, remove it with tweezers, seal it in a plastic bag, date the bag and put it in the refrigerator. That could provide useful identification if you begin to feel ill over the next several days. When the type of tick is identified, it helps to point the infectious disease expert in the correct direction for what condition you may have.

    This Week’s Guest

    Dr. Edward B. Breitschwerdt is a professor of medicine and infectious diseases at North Carolina State University College of Veterinary Medicine. He is also an adjunct professor of medicine at Duke University Medical Center, and a Diplomate, American College of Veterinary Internal Medicine (ACVIM). Dr. Breitschwerdt directs the Intracellular Pathogens Research Laboratory in the Institute for Comparative Medicine at North Carolina State University. He also co-directs the Vector Borne Diseases Diagnostic Laboratory and is the director of the NCSU-CVM Biosafety Level 3 Laboratory. Dr. Breitschwerdt’s clinical interests include infectious diseases, immunology, and nephrology.

    https://www.galaxydx.com/about-us/meet-the-team/edward-breitschwerdt-dvm-dacvim-saim/

    Dr. Ed Breitschwerdt, NCSU College of Veterinary Medicine

    Listen to the Podcast

    The podcast of this program will be available Monday, May 11, 2026, after broadcast on May 9. In this week’s podcast, we talk about developing treatments for these challenging conditions. A major focus for Dr. Breitschwerdt is prevention, so he and his colleagues are working on a vaccine that could prevent Bartonellosis. We also discuss the possibility that Bartonella might contribute to arthritis. Find out about the complications of another vector-borne infection, Babesiosis. You can stream the show from this site and download the podcast for free.

    This episode of our podcast was sponsored in part by MUD\WTR. Start your new morning ritual & get up to 43% off your @MUDWTR with code PPOD at mudwtr.com/PPOD
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