The mRNA-1273.815 vaccine provided significant protection against COVID-19-related hospitalizations and medically attended COVID-19 among US adults.

Viruses are masters at disguise. When they are pushed too far by our immune system, they send new virus variants into play ...

The second possibility is that Covid has now settled into a rut, which will see it become progressively milder until it ...

Pfizer and partner BioNTech have started their clinical trial of a new version of their COVID-19 vaccine that has been specifically designed to protect against the Omicron variant. The trial in ...

The vaccines aren't perfect ... Scientists named these variants after Greek letters: alpha, beta, gamma, delta and omicron. Delta, which became dominant in the U.S. in June 2021, raised a lot ...

Five years ago, on January 29, 2020, Italy admitted its first two COVID-19 patients: two Chinese tourists in Rome. Within ...

As South Korea battled a spike in flu cases, misinformation swirled online that the country was suffering a resurgence of the ...

Patients who received the original monovalent mRNA COVID-19 vaccine were less likely than unvaccinated patients to be hospitalized for COVID-19-associated VTE.

UK’s former vaccine tsar says immunocompromised people were ‘de-prioritised’ in a ‘two-tier’ therapeutic rollout strategy ...