CNBC
By Kevin Breuninger
The World Health Organization warned Wednesday that new coronavirus variants could emerge during the pandemic that render the current vaccines useless.
“As this pandemic drags on, it’s possible that new variants could evade our countermeasures and become fully resistant to current vaccines or past infection, necessitating vaccine adaptations,” WHO Director-General Tedros Adhanom Ghebreyesus said at a press conference in Geneva.