Data collection and review
Data continues to be collected and analysed on new variants of the COVID-19 virus to understand how these variants affect the behaviour of the virus, including their impact on the effectiveness of vaccines, if any.
Manufacturer’s vaccine programmes may have to adjust to the evolution of the COVID-19 virus: For example, vaccines may need to incorporate more than one strain when in development, booster shots may be required, and other vaccine changes may be needed.
Learn more about the effects of the virus variants on Covid-19 vaccines here