Mutations

Two years later, did Covid vaccines live up to their promise? Despite the success of mRNA vaccines, researchers think a new generation of Covid vaccines could provide broader, longer-term protection in the future. NBC News

...In particular, researchers think sprays or drops given through the nose or mouth could do a better job of stopping transmission. They also hope that vaccines that target multiple parts of the virus or several variants at once could reduce the need for continuous boosters.

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China's COVID spike not due to lifting of restrictions - WHO director GENEVA (Reuters) -COVID-19 infections were exploding in China well before the government's decision to abandon its strict "zero-COVID" policy, a World Health Organization director said on Wednesday, quashing suggestions that the sudden reversal caused a spike in cases. The comments by the WHO's emergencies director Mike Ryan came as he warned of the need to ramp up vaccinations in the world's No. 2 economy. Speaking at a briefing with media, he said the virus was spreading "intensively" in the nation long before the lifting of restrictions. YahooNews

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Dr. Sanjay Gupta: After two years of Covid-19 vaccines, here's why they're still vital | CNN In the United States, approximately 658 million Covid-19 vaccine doses have been administered since they were first distributed exactly two years ago Wednesday. Dr. Sanjay Gupta CNN

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China reduces COVID-19 case number reporting as virus surges China's National Health Commission is scaling down its daily COVID-19 report starting Wednesday after a sharp decline in PCR testing even though daily cases are hitting record highs. NPR.org

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