Are leftover COVID-19 rapid antigen test kits still good to use?

Are leftover COVID-19 rapid antigen test kits still good to use?

With the impending fall flu season and the continued circulation of new COVID-19 variants across the country, attention is once again turning to rapid antigen tests. Given the dwindling supply, increasing numbers of expired tests and the emergence of new COVID-19 variants in the country, the question arises: Are rapid tests still effective? Global’s Katherine Ward has more.