prognosis

US demands proof of negative Covid test for visitors flying to the US

Pfizer is investigating post-vaccination mortality for a possible link

US daily vaccinations against Covid are up 1.25 million

Virus outbreak: news and analysis as of January 11

Virus outbreak: news and analysis as of January 11

Japan says it has found a new coronavirus variant

How Long Do Covid Symptoms Last? Study says six months

Jair Bolsonaro is suspicious of covid vaccines and Brazil is falling behind

Australia tightens border controls on UK’s Covid Strain Threat

South Africa Covid strain more transmissible, not more serious