The difference between contamination and infection is that in infection
Infectious agent is on body surface or on non-human objects
Infectious agent is in the body of human
Ahropods on the body surface
Infectious agents on clothes
INFECTION The entry and development or multiplication of an infectious agent in the body of man / animals An infection doesn&;t always cause infection Levels of infection:- 1. Colonization- Staphylococcus aureus in skin and nasopharynx 2. Subclinical/inapparent infection- Polio 3. Latent infection- HSV 4. Manifest/clinical infection CONTAMINATION:- The presence of an infectious agent on a body surface, also on/in clothes, bed,toys, instruments or other inanimate substances including water, milk and food Reference: Park&;s textbook of Preventive and Social medicine; 23rd edition;, Page no. 92
Communicable diseases