Zoonosis |What is Zoonosis?

Short note: Zoonosis (DU-91U)

Ans:
Zoonosis means disease of
animals .Transmission of disease from animal to man is called zoonosis
Examples:
◆ Leishmaniasis
◆ Trypanosomasis (Chagas disease and rhodesian sleeping sickness)
◆ Trichinelliasis
◆ Echinococcosis
◆Rabies
◆Plague
◆Anthrax
◆ Brucellosis
Nice to know
           Autoimmunity

It is an inmune reaction in which antibodies develop against some constituents of body's own tissue. e. g.automune antibody developing against RBC and causing anaema in Kala-azar& malaria.
           

            Hypersensitivity |What is Hypersensitivity


Immune reaction not only protect but an access to the Ag for a second time can produce an abnormally exaggerated response which may themselves be injurious or may be responsible for pathological reactions in tissue.
       ◆ In quartan malaria (immediate type of hypersensitivity)
         ◆In leishmaniasis(delayed type of hypersensitivity)
             
     
             Premunition
This is a concomitant immunity or infectious immunity in which there is a relative resistance to reinfection of host still carrying the infecring organism.It disappears with the cure of parasitic infection.
●Malaria
● Schistosomiasis
            Infection

Infection is a state of entrance of a disease causing agent imside the host, its development, multuplication,dissemination and development of some biochemical changes leading to overt or hidden clinical features.
            Infestation
It is a state of lodgement, development& reproduction of arthropodes on the surface of body of a person or animal and also a state of invasion of gut by parasitic worms.
             Reservoir
Any human,cow,monkey or any animal, arthropod, plant, soil or a substance( or a combination of all these) in which the infectious agent lives, multiplies, in which it depends primarily for survival & where it reproduces itself in such a way that it can be transferred to a susceptible host .


◆Man is the main reservor
◆ Pig for balantidiasis
◆ Sheep&cattle for Hydatid disease
Definition and Classification of Vector

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