coronavirus variants have been detected in virtually all countries and territories of the Americas, but although they are more transmissible there is no evidence they are more lethal, a World Health Organization expert said on Thursday.The vaccines that are being administered in the region do provide more protection against the variants, Jairo Mendez, a WHO infectious diseases expert said in a webinar by the Pan American Health Organization (PAHO)."What we still do not know is whether fully vaccinated people who do not become ill can still spread the virus to others.
We have a lot to learn," Mendez said.The newest variant, the Indian B.1.617 variant, has been detected in cases in eight countries of the Americas, including Canada and the.