News > EXPLAINER: Are new coronavirus strains cause for concern?

EXPLAINER: Are new coronavirus strains cause for concern?

Reports of new coronavirus strains that seem to spread more easily are causing alarm, but virus experts say it’s unclear if that’s the case or whether they pose any concern for vaccines or cause more severe disease.

Health experts said the strain seems to infect more easily than others, but there is no evidence yet it is more deadly. The possibility that new strains will be resistant to existing vaccines are low, but not inexistent.