Virology
Where Did HIV Come From?
By Gertrud U. Rey | | Basic virology, Gertrud Rey, Information
by Gertrud U. Rey As discussed in my previous post, we first became aware of human immunodeficiency virus (HIV) in the early 1980s. However, when did the virus actually emerge in humans, and where did it come from? There are two strains of HIV – HIV-1 and HIV-2. The vast majority of infections are caused …
Why Don’t We Have an HIV Vaccine?
By Gertrud U. Rey | | Basic virology, Gertrud Rey
by Gertrud U. Rey This post was written in honor of Virus Appreciation Day, which occurs annually on October 3. Public awareness of human immunodeficiency virus (HIV) began in the early 1980s when separate clusters of infected individuals were identified in Los Angeles, San Francisco, and New York. These individuals all shared a group of …
Sloth Fever
By Gertrud U. Rey | | Basic virology, Gertrud Rey
by Gertrud U. Rey Recent news headlines have featured a mysterious and presumably new illness termed “sloth fever.” More aptly named Oropouche fever, the disease is caused by Oropouche virus (OROV), an arthropod-borne virus that is transmitted primarily through the biting midge Culicoides paraensis. OROV typically circulates in sloths, non-human primates, and birds, but it …
Why Does Stress Reactivate Herpes Simplex?
By Gertrud U. Rey | | Basic virology, Gertrud Rey
by Gertrud U. Rey It is well known that stress and exposure to UV radiation can reactivate replication of latent herpes simplex virus type 1 and/or type 2 (HSV-1 and/or HSV-2), and the painful lesions associated with these infections. But why is that? During a primary infection, HSV-1 and HSV-2 replicate within the epithelial cells …
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 …
David Tuller
Trial By Error: Professor Chris Ponting on “Replicated Blood-Based Biomarkers” for ME in Big Data Pre-Print Study
By David Tuller, DrPH Along with several colleagues, Professor Chris Ponting, a geneticist at the University of Edinburgh and a leading ME/CFS researcher, recently posted a pre-print called “Replicated blood-based biomarkers for Myalgic Encephalomyelitis not explicable by inactivity.” (A pre-print is a paper that has not yet been formally peer-reviewed.) For this analysis, the investigators …
Trial By Error: The BMJ Corrects REGAIN Study’s Expansive Claims; Results Only Applicable to Post-Hospitalized Long Covid Patients
By David Tuller, DrPH In February, The BMJ published a study called Clinical effectiveness of an online supervised group physical and mental health rehabilitation programme for adults with post-covid-19 condition (REGAIN study): multicentre randomised controlled trial.” (Post-Covid-19 Condition, or PCC, is one of many current definitions for Long Covid.)The study, led by a team from …
Trial By Error: My Tour of Ireland, Through Wind and Rain; Slides of My Talk
By David Tuller, DrPH Last month, I took a quick speaking tour around Ireland at the invitation of the Irish ME/CFS Association. I first became acquainted with Tom Kindlon, the association’s assistant chairperson, about ten years ago. I was beginning to look into the background of the PACE trial, which purported to have proven the …
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Trial By Error: Guardian Columnist George Monbiot on the “Bizarre Cult” at the London-Based Science Media Centre
By David Tuller, DrPH October is a crowdfunding month at University of California, Berkeley. If you’d like to support my work, you can make a donation to the university (tax-deductible for US taxpayers) here. Last week, Guardian columnist George Monbiot wrote another scathing piece about the failure of the UK health care system to address the …
Trial By Error: PACE Authors Respond to Monbiot Column with Tired Arguments
By David Tuller, DrPH October is a crowdfunding month at University of California, Berkeley. If you’d like to support my work, you can make a donation to the university (tax-deductible for US taxpayers) here. Last week, Guardian columnist George Monbiot wrote another scathing column about the failure of the UK health care system to address the …
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Trial By Error: Professor Chris Ponting Discusses His Recent Article in The Conversation about the Plight of ME/CFS patients
By David Tuller, DrPH October is a crowdfunding month at University of California, Berkeley. If you’d like to support my work, you can make a donation to the university (tax-deductible for US taxpayers) here. In the last few years, geneticist Chris Ponting, a professor at the University of Edinburgh, has become a leading researcher in the …