Perhaps because of social distancing and restrictions on gatherings, perhaps because everybody took the advice to get vaccinated early or perhaps because some people were reluctant to seek medical attention or go to a hospital if they were experiencing flu symptoms, the number of cases of seasonal flu has plummeted!
Whatever the causes, this is proof positive that vaccination, good hand hygiene and other measures to keep yourselves safe actually work!

You gotta laugh!

Is there a theme running through this?