Virology
Active vs. Passive Immunity
By Gertrud U. Rey | | Basic virology, Gertrud Rey, Information
by Gertrud U. Rey During the first few months of life, residual maternal antibodies that crossed the placenta during gestation and antibodies from breast milk protect infants from infection with various microbes. This type of immune protection is known as “passive immunity,” and differs from “active immunity,” which develops in an individual following vaccination or …
You Cannot Get Bird Flu From Pasteurized Milk
By Gertrud U. Rey | | Basic virology, Gertrud Rey
by Gertrud U. Rey Multiple recent outbreaks of “bird flu” in U.S. dairies are raising concerns about whether milk from infected cows is safe to drink. H5N1, the strain of influenza virus causing the outbreaks, is typically transmitted among birds but occasionally spreads to non-avian animals, including mammals. Prior to distribution, commercially sold milk is …
Does Herpes Simplex Virus Cause Alzheimer’s Disease?
By Gertrud U. Rey | | Basic virology, Gertrud Rey
by Gertrud U. Rey Alzheimer’s Disease (AD) is a neurodegenerative disorder and the most common form of dementia. Although its exact cause is unclear, an increasing body of evidence suggests that an infection with herpes simplex virus (HSV) may contribute to onset of AD later in life. Both types of HSV (HSV-1 and HSV-2) infect …
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Dogma Does Not Belong in Science
By Gertrud U. Rey | | Basic virology, Gertrud Rey
by Gertrud U. Rey According to established scientific dogma, infection of cells with HIV-1 leads to delivery of the viral capsid into the cell cytoplasm, followed by “uncoating” of the capsid to release the single-stranded RNA genome. A viral-encoded enzyme called reverse transcriptase then catalyzes the conversion of the viral RNA into a single strand …
Let’s Talk About Measles
By Gertrud U. Rey | | Basic virology, Gertrud Rey
by Gertrud U. Rey Recent news headlines have been featuring multiple outbreaks of measles across the globe, and an announcement from the Centers for Disease Control and Prevention dated January 25, 2024, also reported 23 confirmed cases in the US over the past month. These outbreaks happen every few years and are usually triggered by …
The Problem of Original Antigenic Sin
By Gertrud U. Rey | | Basic virology, Gertrud Rey
by Gertrud U. Rey Once the innate immune system senses a never-seen-before pathogen as new, it engages elements of the adaptive immune response. These adaptive immunity elements coordinate over time to develop a response that protects from re-infection and disease upon a second exposure to the same pathogen. The second exposure will immediately lead to …
David Tuller
Trial By Error: New Medical Anthropology Book on Chronic Illness Triggers Controversy
By David Tuller, DrPH While I was on medical leave for the last few weeks, the fascist regime’s brownshirts executed two people protesting the military occupation of Minneapolis. (It seems important to make that point before anything else.) Of course, other stuff has been happening too. In the domain of common interest here, a new …
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Trial By Error: An Essay on Living with Severe ME
By David Tuller, DrPH I’ve been totally out of commission for three weeks while recovering from bruised ribs sustained in a fall. I have devoted most of my time trying to find sitting and lying positions that did not cause excruciating pain. That part is over, and I’m slowly getting back to work and catching …
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Trial By Error: My Unexpected E-Mail Exchange with Alem Matthees
By David Tuller, DrPH In recent months, one of the most high-profile people with myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS)—Australian Alem Matthees—has reported significant improvement in his condition. He is still bed-bound, and is still not speaking. This is not, by any means, “recovery.” Nonetheless, the change in Alem’s ability to read, consume information and communicate …
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Trial By Error: Journal Publishes Confusing Section on “Enduring Symptoms”
By David Tuller, DrPH As part of its December issue, Future Healthcare Journal, sponsored by the UK’s Royal College of Physicians, has published a special section called “Challenging Myths: Debunking Functional Disorders.” The special section title itself creates confusion. In what way are functional disorders being “debunked”? I assume the idea is to debunk the …
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Trial By Error: More on the Canadian Long COVID Trial with Plans to Lie to Participants Receiving an Exercise Intervention
By David Tuller, DrPH I recently posted a blog about the protocol for a Canadian Long COVID exercise trial in which the investigators proposed lying to the participants about the nature of both the study and the intervention being assessed. While acknowledging that a significant number of people with Long COVID report experiencing post-exertional malaise …
Trial By Error: In Protocol for Long COVID Exercise Trial, Investigators Advocate Lying to Participants
By David Tuller, DrPH Researchers are planning yet another trial of a rehabilitative exercise program for Long COVID—but, in this one, they propose to lie to all the participants about the nature of the study and the intervention being investigated. BMJ Open has recently published a paper called “Pursuing Reduction in Fatigue After COVID-19 via …