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Excelsio Media by Nelson Alarcón - alarcónnelson

Pfizer shot less effective in South Africa after Omicron emerges: study

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 published on Tuesday showed.


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