What are the chances? My son (20 in uni) had covid once (confirmed with a positive test - barely any symptoms), suspected covid once (flu like symptoms but before testing available so who knows), and now has developed a cough after being in close contact with a friend whose just tested positive. He had his first jab a few weeks ago. Meant to be coming home from uni this weekend! Anyone had it confirmed 2 or more times? Is this possible/likely? He’s currently waiting test result and a call from test and trace