"The study stated that Covid-19 cases in the U.S. were first detected in December 2019. A study showed that Covid-19 infection was detected in the U.S. in December 2019, providing further evidence that the coronavirus has reported the first number of cases in China. Spread around the world before the week.
The study published Monday identified 106 infections in 7,389 blood samples collected from donors in nine states in the United States from December 13 to January 17. These samples were collected by the American Red Cross and sent to the US Centers for Disease Control and Prevention for testing to detect the presence of antibodies against the virus.
The report stated: "The report's findings indicate that SARS-CoV-2 infection may appear in the United States in December 2019, earlier than previously recognized.