Broccoli sold by Walmart in Texas and 20 other states could be tainted with germs known as Listeria Monocytogenes that can be fatal.
According to the alert, the potential for contamination was discovered during random sampling by Texas Health & Human Services at a Texas store location where one of multiple samples yielded a positive test result. - ...
If you are really in doubt you should get tested for COVID-19. If you do have it you'll need to quarantine and let people around you know that you have it.