Testing once or twice a week in schools and at the workplace have been reported to have enabled identification and immediate quarantine of infected individuals, thereby preventing spread in workplaces and other social settings.
Rapid antigen tests are less successful with early infections and asymptomatic cases.
Results are available in one to two days.
It is more expensive than some of the others, and results are available in 30 minutes.
It uses an anterior nasal swab, and results are available at home in approximately 30 minutes.
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