Intranasal boosting after prior intramuscular COVID vaccination induced strong mucosal IgA responses in a small human cohort. These antibodies showed markedly enhanced neutralising activity against ...

For many people who have “recovered” from COVID-19, the illness lingers as brain fog: forgotten appointments, lost words ...

The FDA declined to review Moderna's mRNA influenza vaccine due to inadequate clinical trial comparators for older adults.

Find out how different vaccines for the coronavirus cause your body to create antibodies that fight the virus.

C OVID-19 may leave a lasting impression on the brain, even in people who fully recover from their infection. New research ...

The 2025-2026 flu season has been one of the worst in recent history. According to CDC data, during the last week of 2025, the influenza-associated hospitalization rate ...

Robert F. Kennedy Jr. is reshaping U.S. health policy as HHS secretary, and doctors say his changes are eroding trust. Survey ...

After years of sleuthing, Australian researchers believe they have cracked the cause of lethal blood clots caused in rare cases by AstraZeneca’s COVID vaccine – and how to beat the problem.

The 20 million Americans suffering from an increasing, poorly understood virus could be at a greater risk of developing ...

A neuroimaging study from NYU Langone Health has reported that people with neurological Long COVID show enlargement and reduced blood flow in the choroid plexus – a key brain structure – with ...

The increased size of, and lesser blood supply to, a key brain structure in patients with Long COVID tracks with known blood markers of Alzheimer's disease and greater levels of dementia, a new study ...

The increased size of, and lesser blood supply to, a key brain structure in patients with long COVID tracks with known blood markers of Alzheimer's disease and greater levels of dementia, a new study ...