Since 1996 WHN is the second oldest medical website on the net, second only to the American Medical Association, servicing over 35,000 physicians and scientists worldwide.
Non-Profit Trusted Source of Non-Commercial Health Information
One of the most fatal pandemics in human history was known as the Black Death, with between 75-200 million people perishing in a few years. This pandemic called the bubonic plague which was caused by the bacterium Yersinia pestis found in wild rodents and their fleas. Survivors are thought to have given their descendants a …
An international team of scientists who analyzed centuries-old DNA from victims and survivors of the Black Death pandemic has identified key genetic differences that determined who lived and who died, and how those aspects of our immune systems have continued to evolve since that time. Researchers from McMaster University, the University of Chicago, the Pasteur …