A Feb. 16 study in the Lancet medical journal found that, for people who had COVID-19 immunity resulting from infection, protection from severe disease and death remained high for at least 10 months.

Add Yahoo as a preferred source to see more of our stories on Google. Can certain infections, such as COVID, leave you more vulnerable to getting another illness? (Getty Images) (Guido Mieth via Getty ...

As the omicron variant of SARS-CoV-2 took hold across the globe in late 2021, it became readily apparent that the pandemic had entered a new phase. Having experienced a previous COVID-19 infection or ...

When we’re exposed to a pathogen such as a virus, our immune system identifies it as a foreign invader and mounts an attack. This ultimately results in the formation of antibodies which can neutralise ...

For at least 10 months after a COVID-19 infection, your immune system can provide good protection against symptomatic illness the next time around, a new study found, and the risk of severe illness is ...

Your immune system may be weak if you have frequent, severe, or extended infections. Learn more signs of a weak immune system.

In a recent study posted to the medRxiv* preprint server, researchers explored the alterations in population immunity against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) Omicron ...

A multi-center study led by researchers at Cincinnati Children's sheds new light on why some newborns become severely ill from Escherichia coli infection, but others do not. It turns out that most ...

In a recent study posted to the journal Nature, researchers showed that the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) Omicron infection without SARS-CoV-2 vaccination conferred ...

Over recent weeks, since before Thanksgiving, there has been a significant and steep rise in COVID-19-related hospitalizations for Americans 70 and older. Nationally, that rate now exceeds the peak of ...