The COVID-19 virus can persist in the blood and tissue of patients for more than a year after the acute phase of the illness has ended, according to new research from UC San Francisco that offers ...

Summary: Advanced imaging reveals that COVID-19 may cause lasting brain changes, even in people without ongoing symptoms, ...

The most common respiratory viruses that cause flu, colds, and RSV tend to cluster in the fall and winter months. Though that means months of elevated risk for sickness, "cold and flu season" is a ...

Millions of people who recover from infections like COVID-19, influenza and glandular fever are affected by long-lasting symptoms. These include chronic fatigue, brain fog, exercise intolerance, ...

Deaths from COVID-19 have slowed significantly but continue adding to a tally of more than 7 million deaths from the virus in the nearly five years since the World Health Organization (WHO) declared a ...

A fever and a nasty cough can be symptoms of a range of respiratory illnesses. An antigen test that narrows down the culprits can speed up diagnosis and recovery. When you purchase through links on ...

When first lady Jill Biden tested positive for COVID-19 earlier this week, it publicly confirmed what many Americans have already picked up on in their personal lives. The virus is back — again.

Study findings explain why pandemics spread faster than detection efforts, based on U.S. data from H1N1 and COVID-19.

Last year’s respiratory virus season in the US was a bad one. After two years of extraordinarily light flu seasons, which infectious disease experts attributed to Covid-19 pandemic precautions like ...

In August, a new, updated COVID vaccine became available to target the strain KP.2. Like previous COVID vaccines, this one is recommended for people 6 months of age and older and will provide better ...

Researchers at the Chinese lab accused of leaking the COVID-19 virus have now discovered a new coronavirus in bats that closely matches the one that led to the deadly worldwide outbreak in 2020, ...

With respiratory virus cases on the rise in Illinois, leading to an increase in hospitalizations and the potential for masking to return to some health care settings, it can be important to know the ...