Coronavirus may have been present in the United States weeks earlier than scientists realized, according to new government research. While COVID-19 cases were first identified in China in December, the US did not report its first case until late January.
The coronavirus may have been present in the United States weeks earlier than scientists realized, according to new government research. While COVID-19 cases were first identified in China in December, the United States did not report its first case until late January. A study published in the journal Clinical Infectious Diseases Monday suggests that the virus was present in the United States as early as last December.
