Pfizer

Omicron’s Threat to Global Economy Increasingly Runs Through China

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The direct economic harm caused by the Omicron variant of Covid-19 in highly vaccinated countries appears so far to be relatively modest and short-lived, but its indirect hit could prove significant if China resorts to repeated lockdowns in its effort to suppress the virus within its borders. Omicron led to a fresh surge in infections … Read more

Covid booster efficacy wanes significantly by fourth month: US study

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WASHINGTON: The efficacy of third doses of the Pfizer and Moderna mRNA vaccines wanes substantially by the fourth month after administration, a new study by the US Centers of Disease Control and Prevention (CDC) said Friday. Though it’s now well documented that vaccine efficacy goes down after two doses, relatively little has been published on … Read more