COVID-19 Vaccine Booster Effectiveness Wanes After Four Months But Still Offers Protection

Booster doses of the Pfizer/BioNTech and Moderna coronavirus vaccines are safe, and they offer high levels of protection against severe Covid-19 even though that protection can wane over time, according to two studies published by the US Centers for Disease Control and Prevention on Friday. Awesome!

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Photo Credit: Adam Gethin