By: CBS News
SAO PAULO -
Brazil's battle against a dangerous coronavirus variant has left its hospitals at breaking point, with new cases skyrocketing and the death toll climbing precipitously. One expert told CBS News that Americans should be "very worried about" the prospect of the mutant virus, or others yet undetected, gaining a foothold on U.S. soil.
The COVID-19 surge in Brazil is being driven both by the highly-infectious P-1 strain that was first detected in that country, and a highly-criticized government response to the pandemic. The variant has already been found in more than half of U.S. states.