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Two-dose COVID vaccine is effective against severe Omicron but less so for those over 80 -- Hong Kong study

Two-dose COVID vaccine efficacy durable against severe Omicron but drops in elderly

 

Overall two-dose vaccine effectiveness (VE) against Omicron variant-related hospitalization or death remained above 70% for at least 6 months among adults in Hong Kong but dropped to below 62% in those aged 80 and older, necessitating a third dose, finds a case-control study published today in JAMA Network Open.

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Vaccine Makers Kept $1.4 Billion in Prepayments for Canceled Covid Shots for Poor Countries --NYTimes

As global demand for Covid-19 vaccines dries up, the program responsible for vaccinating the world’s poor has been urgently negotiating to try to get out of its deals with pharmaceutical companies for shots it no longer needs.

Drug companies have so far declined to refund $1.4 billion in advance payments for now-canceled doses, according to confidential documents obtained by The New York Times.

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