There is alot of fatal diseases, and viruses in the world including covid, hepatitis, aids, ect. In order to keep them under control of spreading, cleaning and killing the germs and bacteria is very important. 

Properly cleaning  and using the correct ppe is very important. Washing hands is also very important to stop the spread of germs and disease.

You should always follow the guidelines for healthcare proper cleaning always, this is in all commercial cleaning situations, & can also be performed in residential home cleaning. 

Find certified cleaning companies here -> https://www.ijcsa.org/Janitorial-Service-Directory-Find-A-Janitorial-Service-JanitorialServices