They tested negative. Yet they quarantine them for 21 days anyway. The test results are worthless.
What about the other people he came into contact with? Are they being quarantined and monitored, too?
Found this at the end of another report:
“The illness has an average 8-10 day incubation period (although it ranges from 2 to 21 days); CDC recommends monitoring exposed people for symptoms a complete 21 days. People are not contagious after exposure unless they develop symptoms.”