It seems, so far, the vaccine is still relevant. > Over time, as more mutations occur, the vaccine may need to be altered. This happens with seasonal flu, whic

It seems, so far, the vaccine is still relevant. > Over time, as more mutations occur, the vaccine may need to be altered. This happens with seasonal flu, which mutates every year, and the vaccine is adjusted accordingly. The SARS-CoV-2 virus doesn’t mutate as quickly as the flu virus, and the vaccines that have so far proved effective in trials are types that can easily be tweaked if necessary.