By William Mauldin President Biden's chief medical adviser said he expects Johnson & Johnson's Covid-19 vaccine to return to use in the U.S. by Friday, following a pause due to concerns about blood clots in several patients. "I would be very surprised...if we don't have a resumption in some form by Friday," Dr. Anthony Fauci told CBS's "Face the Nation," echoing remarks he made on other networks Sunday. U.S. health authorities on Tuesday recommended suspending use of J&J's single-dose shot out of an abundance of caution while they investigate reports of the six women who got the vaccine and soon developed serious blood clots. The women were between 18 and 48 years old. One died.