Younger Brazilians are increasingly being affected by Covid-19, with those in their 20s showing the greatest increase in deaths so far this year, according to a report published by government biomedical institute Fiocruz on Friday.

It found that the number of Covid-19 deaths among people between the ages of 20 and 29 jumped more than 1,000% between the start of this year - before Brazil's vaccination campaign began - and the first half of April...