New research compares the immunity from having contracted SARS-CoV-2 once with the immunity conferred by a vaccine. Ian Forsyth/Stringer/Getty Images Many questions persist about immunity against SARS ...

Seattle’s Morning News recently checked in with virologist Dr. Keith Jerome, who has helped us understand COVID-19 and other viral illnesses since the start of the pandemic. This winter, it seems ...

There were claims during the pandemic that natural immunity was not as strong as vaccinated COVID immunity. Those claims have been proven to be completely wrong by scientific studies. Natural immunity ...

Scientists hoped that, following vaccination, populations would develop herd immunity to SARS -CoV-2, reducing the risk of infection, even for people without antibodies against the virus. However, the ...

Two new studies have found that the Johnson & Johnson COVID-19 vaccine offers protection against the delta variant and provides at least eight months of immunity. Researchers studied blood from those ...

An internal Centers for Disease Control and Prevention document obtained by several news outlets warns that the COVID-19 delta variant could be more likely to produce severe illness and can spread as ...

A new coronavirus study from Estonia involving a pool of 329,496 adults just found that — in the words of one of the researchers — “natural immunity offers stronger and longer-lasting protection ...

With so many areas in the United States with low vaccination rates, the spread of the Delta variant of the coronavirus will make it that much harder for the country to reach herd immunity, a top ...

The coronavirus has come a long way since 2020. While the days of sanitizing Amazon packages and standing six feet apart may feel like they’re behind us (and they very well may be), the SARS-Co-V-2 ...