Fauci says vaccines may need tweaks as COVID-19 mutations spread

Coronavirus vaccine manufacturers should be prepared to tweak the makeup of their shots in case they end up being ineffective against a variety of emerging COVID-19 mutations, Dr. Anthony Fauci said Friday. Fauci issued the warning in a virtual White House coronavirus task force briefing when asked if the new strain of COVID-19 that is popping up in Los Angeles should be of concern for other big cities. “(We) will have to be nimble to be able to just adjust readily to make versions of the vaccine that actually are specifically directed towards whatever mutation is actually traveling at any giv...