Coronavirus | Johnson & Johnson Says Its COVID-19 Vaccine Has an Overall Efficacy of 66%

The vaccine Johnson & Johnson against COVID-19 has an overall efficacy of 66%, although lower in South Africa, country where a variant of the coronavirus is spreading more contagious, the US pharmaceutical company announced Friday in a statement.

The vaccine, which only requires one injection, is 85% effective in preventing severe forms of the disease, according to an extensive clinical trial. AFP

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