Vaccination

Two vaccines hit snags as Pfizer nears US approval

Two vaccine candidates stumbled Friday in the race among researchers to combat COVID-19, a setback for the global immunisation effort even as the Pfizer-BioNTech jab neared approval in the US.

Diseases, Conditions, Syndromes

COVID-19 has a prolonged effect for many during pregnancy

Symptoms for pregnant women with COVID-19 can be prolonged, lasting two months or longer for a quarter of the women who participated in a national study led by UC San Francisco and UCLA.

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