Trump's change in tone to Tokyo cases, and other pandemic-related news from across the globe. : New infections in China liked to Covid-19 strain from some other place: A strain of Covid-19 that has infected more than 300 people in Beijing since early June could have originated in South or Southeast Asia, according to a study by Harvard University. The outbreak in Beijing has raised concerns about China’s vulnerability to a “second wave” of infections. The virus found in Beijing cases is an imported strain of Covid-19.