COVID-19 vaccine may need to be tweaked regularly | CBC.ca Loaded
COVID-19 vaccine may need to be tweaked regularly
5 years ago
Duration 0:38
COVID-19 vaccine may need to be tweaked regularly
5 years ago
News
Duration 0:38
British virologist Julian Tang says, just like the annual flu shot, mutations of the virus which causes COVID-19 may mean the vaccine needs to be tweaked or changed regularly to maintain its effectiveness.
