President Joe Biden on Friday signed an executive order adding measles to a list of communicable diseases that could require quarantine after several Afghan refugees were diagnosed with the highly contagious disease after arriving in the United States. The action makes measles one of the diseases for which federal health authorities have the authority to issue quarantine orders requiring people who have been diagnosed with measles or exposed to it to self-isolate to protect public health, a White House official said in a statement. "This action was taken at the request of public health officials, who cited the cases of...