Rapid COVID-19 tests can be useful – but there are far too few to put a dent in the pandemic

Rapid tests for COVID-19 are easy to administer and give fast results.AP Photo/Julio Cortez, FileSince September, the Food and Drug Administration has approved seven COVID-19 tests that yield results in 30 minutes or less, offering hope for vast improvements in test access and efficiency throughout the U.S. Most of these are antigen tests that look for viral proteins and can be processed on portable machines or cards.The idea behind these rapid tests is to detect symptomatic, pre-symptomatic and asymptomatic infectious people before they can spread the coronavirus. But despite massive distribu…

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