Agents Flashcards
Disease agents
Antrophod
helminthis
Protozoa
Fungi
Bacteria
rickettsia
Viruses
is the sum of all forces that influence the growth and development of an organism
ENVIRONMENT
This includes the geological structure of the area such as the hills, valleys, plateaus, soil, and
rock composition, and the presence of water, plants, etc.
- A fertile area may favor the development of arthropods, particularly in swampy places; dusty
deserts harbor fungus and bacterial spores.
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Weather, climate, and seasons also influence the type of communicable disease present.
- The physical environment is an important factor in successful parasitism
Physical
component were you will be bought by old notebook
Physical
Socio-economical
Biologic
Reservoirs of Infections are:
Man
▪ Animal
▪ Inanimate organic matter
▪ Plant
▪ Soil
Thing, person, object or substance from which an infectious agent passes
immediately to a host
Sources of Infections