Nearly half of hospitalized COVID-19 patients had a dormant virus flare back to life, and one family of viruses found in the majority of people was tied to lasting symptoms from long COVID.

Long Covid patients suffer from chronic symptoms such as fatigue or shortness of breath. As researchers have discovered, this is to some extent due to a part of our immune system called the complement ...

Ziyad Al-Aly is chief of research and development at VA St. Louis Health Care System and a clinical epidemiologist at Washington University in St. Louis. Since 2020, the condition known as long ...

Faults in a certain part of the immune system might be at the root of some long covid cases, new research suggests. For many people, covid is an illness that blusters in and out of our lives as cases ...

A recent shot of the COVID-19 vaccine doubled survival time in glioblastoma patients who had undergone tumor biopsy or ...

While an increasingly anxious world watched a new coronavirus spread across the globe in early 2020, veteran immunologist Rafi Ahmed quickly grasped that his field was about to experience something ...

You survived COVID, the flu or H1N1 once, so you may assume your body knows how to fight it the next time. But doctors say ...

What we are referring to as “system hesitancies” hindered effective public health responses and continue to impede our collective public health preparedness. Because pandemics such as COVID-19 are ...