Merck & Co. will help produce Johnson & Johnson ’s single-dose Covid-19 vaccine, President Biden plans to announce on Tuesday, as the administration pushes to get the shot to the American public at a faster pace. The president is expected to make the announcement while giving an update on the pandemic, administration officials said. The assistance from Merck, a competitor to Johnson & Johnson, will help speed up production after the one-shot vaccine was authorized by the Food and Drug Administration on Saturday. J&J declined to comment. In a statement on Tuesday, a Merck spokesman said the company “remains steadfast...
