Prevention of infectious and parasitic diseases. Dr. Wasantha Gunathunga Department of Community Medicine. H- nutr, imm. Levels of prevention. Primary Secondary Tertiary. Host. Age Sex Poor nutrition Habits HIV Immunity - BCG. Age Sex Poor nutrition Habits HIV Immunity - BCG.
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Dr. Wasantha Gunathunga
Department of Community Medicine
e.g. Small pox , ?polio
The aim is to reduce the quantity of the agent available for dissemination