$A$ doctor,nurse,or health worker is exposed to more sick people than others in the community. Find out how they avoid getting sick themselves.

(N/A) doctor,nurse,or health worker takes the following precautions to avoid becoming sick themselves:
$(i)$ Get immunization done against all infectious diseases.
$(ii)$ Take a balanced diet (especially rich in proteins) to strengthen their immune system.
$(iii)$ Dispose of blood samples,urine,stool,sputum,etc.,carefully.
$(iv)$ Wear masks while diagnosing mouth or chest infections.
$(v)$ Clean their hands and wear gloves even while performing minor surgeries.