Diseases, Conditions, Syndromes

Q and A: New variants of COVID-19

DEAR MAYO CLINIC: Cases of COVID-19 are once again surging in parts of the U.S., and I'm hearing about different strains, such as the BA.5 and BA2.75 omicron subvariants. What do I need to do to keep my family safe, especially ...

Diseases, Conditions, Syndromes

Research breakthrough in mystery child hepatitis

British researchers reported a breakthrough Monday in mysterious hepatitis cases affecting young children, finding the serious liver condition was linked to co-infection of two common viruses, but not the coronavirus.

Diseases, Conditions, Syndromes

Moderna reports positive results for RSV vaccine

US biotech company Moderna on Tuesday announced positive interim trial results for its vaccine against respiratory syncytial virus (RSV) in adults over the age of 60.

Medications

Ketamine's effect on depression may hinge on hope

In study after study, the psychoactive drug ketamine has given profound and fast relief to many people suffering from severe depression. But these studies have a critical shortcoming: Participants usually can tell whether ...

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