According to data from the US Centers for Disease Control and Prevention, as of the evening of March 4, local time, there were at least 2753 cases of COVID-19 infection in the United States. The infection strains include three mutated viruses found in the United Kingdom, South Africa and Brazil.
Among these cases, the source of infection in 2672 cases came from the new coronary pneumonia mutant virus B.1.1.7 found in the UK. There are currently cases of infection in more than 40 states in the United States, Puerto Rico and Washington, DC. Florida is the state with the most reported cases of B.1.1.7 infection, and about a quarter of the cases are from Florida.
In addition, a total of 68 cases of infection of the new coronary pneumonia variant virus B.1.351, which was originally discovered in South Africa, have been reported in 16 states in the United States and Washington, DC. However, a total of 13 cases of infection with the mutant virus P.1, originally found in Brazil, have been found in 7 states in the United States.
The US Centers for Disease Control and Prevention stated that the published data does not represent the total number of people infected with the new coronary pneumonia variant virus in the United States, but only the cases found through analysis of positive samples. The actual number of infections may be higher.