"Dancing With the Stars" contestant Cody Rigsby has tested positive for COVID-19 days after his partner Cheryl Burke began her quarantine after a positive result. "I have really mild symptoms: Congestion, a little bit of a headache, cough," Rigsby said in an Instagram post. "But in comparison to when I had COVID earlier this year, it is night and day, so that must be the vaccine and antibodies working—we're super grateful for that.".