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

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 ...

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

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 ...

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

Historically, COVID-19 symptoms have been fevers or chills, cough, shortness of breath, cough, congestion or a runny nose, ...

Faster post-COVID-19 recovery is observed after infection with the Omicron vs earlier variants, regardless of vaccination status.

Another year has gone by since the 2020 pandemic and COVID-19 remains at large, so experts weigh in on what will change in 2025.

Delta and Omicron cases, including the association with severe disease and the cellular and immunological effects of prior vaccination. Vaccine-induced neutralizing antibodies are widely ...

Muscat: All airlines operating in the Kingdom of Saudi Arabia have been asked to ensure that holders of Umrah visas, or those ...