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Pfizer Inc yesterday said final analysis of its antiviral Covid-19 pill still showed near 90% efficacy in preventing hospitalisations and deaths in high-risk patients, and recent lab data suggests the drug retains its effectiveness against the fast spreading Omicron variant of the coronavirus.
A two-dose Pfizer/BioNTech vaccination provides just 33% protection against infection by the omicron variant of the coronavirus, but 70% protection against hospitalization, according to a large-scale analysis in South Africa released Tuesday.
A study in South Africa, where the Omicron variant was first found, appears to show the new strain of COVID-19 is more transmissible, but less deadly.
Data from 78,000 South Africans with COVID show the Pfizer vaccine is far less effective in preventing infection by the omicron variant. But there is still significant protection from severe illness.
Data from 78,000 South Africans with COVID show the Pfizer vaccine is far less effective in preventing infection by the omicron variant. But there is still significant protection from severe illness.