Disease

Coverage of infectious and chronic diseases — their causes, mechanisms, epidemiology, prevention strategies, and the latest science on how the body fights back.

The COVID-19 pandemic has been one of the most devastating events in public health in the U.S. over the last half-century. It’s also the most scrutinized health emergency in history.
We have learned a lot about the SARS-CoV-2 virus during the three years of the COVID-19 pandemic. For example, new viral variants, such as the many subtypes of Omicron, are less susceptible to the vaccines developed to protect against th
The Comprehensive Assessment of Long-term Effects of Reducing Intake of Energy (CALERIE) study looked at the effect of a 25% reduction in caloric intake, without sacrificing essential nutrients, in healthy adults over two years.
The peak of COVID-19 infections might be behind us – at least until the next “variant of concern” of the SARS-CoV-2 virus appears – but the scourge of long COVID lives on.  And on.
First, I apologize that this article's basis is not the article published in the Annals of Internal Medicine (see Sources). The article is paywalled.
Virtually all infectious disease experts and epidemiologists would unhesitatingly agree with the headline of this article, and yet there are some armchair experts who demur.
COVID infections may result in
I’ve written in the past about COVID among healthcare workers.
Reading the medical literature – that is, articles reporting studies of various aspects of health and disease – can be enlightening.  It’s how we docs keep up with new knowledge and progress, after all, but it can also be frustrating – for ex
The practice of medicine is often far from straightforward, and simple logic can mislead.  For example, elevated values of the widely used Prostate-Specific Antigen, or PSA, blood test are considered an early indicator of prostate cancer