Distribution of coronavirus (COVID-19) cases worldwide as of April 6, 2021

As of April 6, 2021, the countries with the highest share of COVID-19 cases worldwide included the United States, Brazil, and India with the U.S. accounting for around 24 percent of cases worldwide. This statistic shows the distribution of COVID-19 cases worldwide as of April 6, 2021.

The various types of human coronavirus

The SARS-CoV-2 virus is the seventh known coronavirus to infect humans; its emergence makes it the third in recent years to cause widespread infectious disease, following the viruses responsible for SARS and MERS. Common human coronaviruses typically cause mild symptoms such as a cough or a cold, but the novel coronavirus SARS-CoV-2 has led to more severe respiratory illnesses and deaths worldwide.