Why you should not work on computer while eating?

Question

Do you know that bacteria are found almost everywhere in air, water, soil, food, and in plants and animals organisms, including humans. If they are deposited on surfaces, They can stay for  a long time. They should be cleaned by disinfectants.

A research article is found on all these:

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6210060/