First Lady Jill Biden tested positive for COVID-19, coming about a month after President Joe Biden initially tested positive for the virus. “After testing negative for COVID-19 on Monday during her regular testing cadence, the First Lady began to develop cold-like symptoms late in the evening,” Elizabeth Alexander, the first lady’s communications director, said on Tuesday in a statement. Alexander added that the first lady 71, “tested negative again on a rapid antigen test, but a PCR test came back positive.” The spokeswoman said she was given a course of Pfizer-made Paxlovid, which is known to cause a rebound of...