It once may have been seen as a sign of strength and dedication to show up at work with the flu. It was never smart, given the possibility of infecting co-workers. But the era of COVID-19 has put an end to those times. Symptoms of COVID-19 and flu can be similar. Someone who guesses wrong could spread COVID-19. The only way to be sure is to get tested. “Gone are the days when you can have the flu symptoms and still go to work and be out in public,” said Dr. Denise Johnson, Pennsylvania’s acting physician general. Johnson further urged...