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 ...

Vaccination and past infection may not protect against a new strain of the COVID-19 virus known as Cicada. Here's what you ...

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 ...

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 ...

Researchers at the University of Wisconsin School of Veterinary Medicine have identified a possible way to make ...

Scientists have uncovered a link between COVID-19 control measures and a surge in serious infections in children following the pandemic. Subscribe to our newsletter for the latest sci-tech news ...

Nearly three years into the COVID-19 pandemic, the virus is still evolving, and new research shows just how much immunity we're getting after being infected. Those two little lines that show a ...

If we measure the strength of public health by its ability to protect those who cannot yet protect themselves, the ...

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 ...