"The situation in Brazil has reached its worst moment, we are at a very high transmission rate," says Margareth Dalholm, pulmonologist and coordinator of the study of the vaccine against covid-19 at the Oswaldo Cruz Foundation (Fiocruz).
In an interview with CNN, the expert assures that the "disease has rejuvenated itself" in Brazil.
The World Health Organization warns that the situation of the pandemic in the South American country is very serious and that the high transmission is due in large part to the new variants detected.
