occurring during covid that's why mask and screening in the scenario

Scenario 1 *Jack works at a senior home. jack did a health screening by a nurse as stated by rules. They asked if he was any huge gathering he stated no. The nurse knew he was lying because he came back from a trip from Swiss *jack looked healthy so his boss Amy knowing he was lying let him work cause it was hard to find people to work minimum wage. Senior home had many masks and hand sanitizers set up *family complained to wear masks to Visit the elderly. Boss felt bad for the elderly so let people still come Visit without mask *later on news it states a few died at the senior home and few are sick 1) what is the type of negligence being stated here. Name of the negligence