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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.
A preliminary study shows the Omicron variant is 'highly transmissible' and may better evade vaccines.
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.
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.
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.