
Pfizer rolls out new Covid-19 vaccine
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The Covid-19 vaccine being developed by Pfizer prevented more than 90% of infections in study of tens of thousands of volunteers.
The findings are based on an interim analysis conducted after 94 participants contracted Covid-19.
So how effective is this vaccine?
On line is Nathan Scott Kieswetter, Infectious Disease researcher at University of Cape Town(UCT) and International Centre for Genetic Engineering and Biotechnology.
The findings are based on an interim analysis conducted after 94 participants contracted Covid-19.
So how effective is this vaccine?
On line is Nathan Scott Kieswetter, Infectious Disease researcher at University of Cape Town(UCT) and International Centre for Genetic Engineering and Biotechnology.