Diseases, Conditions, Syndromes

COVID-19 not the sole cause of excess U.S. deaths in 2020

By the year 2017, the United States was already suffering more excess deaths and more life years lost each year than those associated with the COVID-19 pandemic in 2020, according to research from demographers Samuel Preston ...

Immunology

How the immune system deals with the gut's plethora of microbes

The gut is an unusually noisy place, where hundreds of species of bacteria live alongside whatever microbes happen to have hitched a ride in on your lunch. Scientists have long suspected that the gut's immune system, in the ...

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