December 1st According to the Wall Street Journal, a government study released by scientists at the Centers for Disease Control and Prevention on November 30 shows that the novel coronavirus appeared in the United States as early as mid-December 2019, several weeks before China’s official discovery of the novel coronavirus and is also higher than that of the public health in the United States. The first confirmed case in the United States was found by the department a month earlier.
According to the Wall Street Journal, a study published by CDC scientists in the journal Clinical Infectious Diseases shows that 106 of 7,389 blood donation samples collected by the American Red Cross from residents in nine states across the United States have found evidence of COVID-19.
These blood samples were collected by the Red Cross between December 13, 2019 and January 17, 2020, and sent to the US Centers for Disease Control and Prevention for testing to see if there were antibodies against the novel coronavirus.
At the time of analysis, scientists found antibodies to the novel coronavirus in 39 samples collected from California, Oregon and Washington from December 13 to December 16.
“The coronavirus infection may have been in the United States in December 2019, which predates our previous understanding,” the authors wrote. The article also pointed out that these findings indicate isolated cases of COVID-19 infection on the West Coast of the United States in mid-December. In addition, from December 30 to January 17, 2020, scientists found 67 blood samples with coronavirus antibodies in Massachusetts, Michigan and other places.
The Wall Street Journal pointed out in the article that the results of this study also show that there is increasing evidence that the novel coronavirus appeared outside China earlier than previously known.
For example, researchers also found the virus in retrospectively analyzing the sample of hospitalized patients in France on December 27, 2019. Research reflects that not only may the novel coronavirus have appeared in the United States earlier than previously known, but researchers have also found evidence that the virus has spread much more widely in the United States than the test results.