DR. LEWIS OUTLINES CREATION OF VACCINES

Deputy Chairman of the National Technical Working Group on Covid-19 Vaccines, Dr Courtney Lewis is shedding light this evening into the creation of Covid-19 vaccines.
In years past, vaccines would take years to develop and receive approval.
Dr Lewis says where trials were previously done in successive stages, trials for covid-19 vaccines were carried out simultaneously.

The general makeup of the vaccines he says is also different.