Some important precautions that need to be taken by the doctor/nurse/health-worker while treating people who are sicker than others in the community are :
(a) When in contact with a diseased person not to forget to wear a mask.
(b) Drinking purified water.
(c) Not neglecting cleanliness and personal hygiene.
(d) Keeping themselves covered appropriately when moving in an infected region
(e) Eating nutritious food and maintaining a healthy diet.