Preliminary studies are finding that vaccines may not provide as much protection from Omicron, but hybrid or boosted immunity may remain robust.
Compared to people who tested negative for covid-19, those who survived severe illness were more than twice as likely to die within a year's time.
Lookups of the word saw a 601% increase compared to 2020 and an astounding 1048% increase since pre-pandemic 2019.
The governor of New York declared a state of emergency on Friday as authorities worldwide move to limit the spread of the heavily mutated variant.
Thousands of people in New Jersey may have been exposed to the highly contagious foodborne virus, which can leave people sick for up to six months.
The vials contained vaccinia virus, which is used as the base of past and present smallpox vaccines.
The data is clear by now: Booster doses are providing high levels of protection against the misery caused by the coronavirus.
Pfizer expects to make $36 billion from its covid-19 vaccine in 2021 alone.
In an animal study, the mRNA-based vaccine made it harder for ticks to get a full meal and pass on Lyme bacteria.
A lab worker at a vaccine research facility in Pennsylvania found a small number of frozen vials labeled "smallpox" in a freezer, the CDC said.
The Esperanza patient is only the second person thought to have defeated an HIV infection without antiviral drugs or a bone marrow transplant.
The U.S. has slipped to 55th place despite being ranked 18th most vaccinated as recently as July.
Anti-vaxxers have pivoted to "undoing" vaccines with epsom salt and borax, which will absolutely not work.
As if you need another reminder to keep your cat inside.
Essential workers traveling from Mexico and Canada still have a couple of months to get vaccinated.
The combination antiviral treatment reduced the risk of hospitalization and death by 89% in those treated within three days, compared to placebo.
Psaki didn't travel with President Biden to Europe for COP26.
Facebook will also roll out reminders about how the vaccine is now available and where to get it.
The private key used to sign the EU's digital covid certificates appears to have leaked, leading to forged certificates for people—even dead ones like Hitler.
In a clinical trial, Pfizer/BioNTech's vaccine was estimated to be 90% effective at preventing the viral illness in children.
