Researchers at a consortium of Brazilian universities and institutes examined the ratio of cases resulting in deaths through April 10 and compared it with data on the expected death rate from the World Health Organization. The much higher-than-expected death rate in Brazil indicates there are many more cases of the virus than are being counted, with the study estimating only 8% of cases are being officially reported.
The government has focused on testing serious cases rather than all suspected cases, according to the consortium, known as the Center for Health Operations and Intelligence. The center and medical professionals have also complained of long wait times to get test results. Health Minister Luiz Henrique Mandetta has said that it is difficult to distribute tests in Brazil because of the size of the country but acknowledges that testing needs to improve.