Add Yahoo as a preferred source to see more of our stories on Google. Cells containing the novel coronavirus Sars-CoV-2 seen through a microscope (AFP via Getty) Cells infected with the Covid-19 virus ...

A 53-year-old man presented to the hospital after losing vision in his left eye. He explained that he had been given his second dose of Pfizer's COVID vaccine (Comirnaty) 10 days previously. He said ...

In a recent study published in the journal PNAS Nexus, researchers performed a three-wave online panel survey across 50 states in the United States of America (USA) and Washington D.C. in 2021 to test ...

For almost three years, scientists have raced to understand the immune responses in patients who develop severe COVID-19, with an enormous effort aimed at defining where healthy immunity ends and ...

Coronaviruses have found another door into human cells, and it is one that scientists were not watching. A bat virus isolated ...

The antibodies induced after coronavirus disease 2019 (COVID-19) vaccination or severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection have a reduced capacity to cross-neutralize ...

Researchers found flu and COVID infections can awaken dormant cancer cells in mice and humans. Inflammation, IL-6 signaling, and immune cell dynamics were central to the reactivation process. Human ...

Long COVID remains a frustrating medical mystery, affecting up to 1 in 10 people long after the initial infection fades. Now, scientists have uncovered a crucial clue hidden deep within the immune ...

SUGAR LAND – If you or someone you know is suffering from the long-term impacts of COVID, you know it’s not easy to find relief. Right now, data indicates symptoms can last months in about one-third ...