FDA approves release of a flu/covid test from Lucia. https://www.cnn.com/2023/02/24/health/fda-flu-covid-test/index.html
The government will be sending out free covid tests again anticipating a holiday surge. https://www.npr.org/2022/12/15/1142926180/free-covid-tests-mail-order
I change mine out every daylight saving time.
Website says it can be store indefinitely unopened in fridge.