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DISEASE DETERMINANTS Each factor or variable that affects the formation of a disease and its frequency in the population is called a determinant

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(1)

DISEASE DETERMINANTS

Each factor or variable that affects the formation of a disease and its frequency in the population is called a determinant

Primer setter

Secondary determinant

Internal (intrinsic, endogenous) determinant

Outsourcing (extrinsic, exogenous) determinant

Host-agent-environment determinants

(2)

HOST DETERMINANTS

A susceptible host must be present in order for a disease to occur

Kind

Horse and cattle, beef cattle, distemper (dog juvenile disease), Campylobacter fetus subsp venerealis

Anthrax (anthrax) - poultry

C. fetus subsp infertility, enzootic in cattle, sporadic abortion in cattle

Race

Large dog breeds - joint dysplasia, osteosarcoma Bos taurus ırkı cattle - tick and tick-borne diseases Algerian sheep - Brucella melitensis

Hereford cattle eye cancer (no protective pigment)

(3)

HOST DETERMINANTS

Age

Distemper's disease in dogs, infectious bronchitis in chickens

Cancer

Histophilus ovis - septicemic infection in young sheep epididymitis in adult coaches

Pasteurella haemolytica - pneumonik infection in the calves septicemic infection in sheep

Gender

Anatomic - metritis, mastitis, epididymitis, orchitis Hormonal - diabetes mellitus in the teeth (after estrus)

Genetics - Gender related (hemophilia A and B in male dogs) Gender limited (cryptorchidism in male dogs)

Gender-increasing (open ductus arteriosis in female dogs)

Use of animal - male dog - hunting

female calf - descent continuity

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