Dec. 21—The company that operates a Maine factory making a widely used rapid test for COVID-19 said it would increase production by 40 percent in January amid widespread shortages of the tests before ...

The maker of a rapid coronavirus test widely used across the United States and distributed by the federal government has warned that its device can produce false negatives if a special solution is ...

Add Yahoo as a preferred source to see more of our stories on Google. As people across the country continue to grab at-home, COVID-19 tests off store shelves, Abbott Laboratories — the maker of one of ...