Medical Health Cluster

Omicron Emerges

Pfizer Shot Less Effective in South Africa After Omicron Emerges: Study

Pfizer-BioNTech’s COVID-19 vaccine has been less effective in South Africa at keeping people infected with the virus out of hospital since the Omicron variant emerged last month, a real-world study released on Tuesday showed. Between Nov. 15 and Dec. 7, people who had received two doses of the shot had […]

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