This disease is caused by intraerythrocytic parasites — Anaplasma , which carry many types of blood-sucking ticks and biting insects ( horse flies , stable fly flies , mosquitoes ) . Source pathogen invasion — sick animals and animal — parasite . To anaplasmosis susceptible cattle of different breeds and ages. The disease most often recorded in the spring and summer and autumn and in most cases after outbreaks of theileriosis and other piroplasmoses or simultaneously with them.
Fledglings carries disease easier. Ill animals are carriers of the pathogen and vector source invasiverness — ticks and insects. In the body of the tick pathogen goes further.
Transferring pathogen invasion through mite eggs from one another mite mature phase with intermittent power . Insects are mechanical vectors Anaplasma . Also recorded cases of reinfection animal anaplasmosis when dehorning , castration , bonitation , vaccination and blood sampling in cases of non-sterile instruments.
Also described cases of intrauterine infection of animals. The incubation period depends on the route of infection and the extent of invasion by blood (with vector-borne infection — from 10 to 175 days , on average, 1-2 months ) . Patients animals increased body temperature (sometimes up to 42 ° C) , they no longer are . First jaundiced mucous membranes , anemic , later becoming white. Breathing quickens, increasing superficial lymph nodes , there are edema of the eyelids , cheeks, in the submandibular region , in the neck, dewlap , belly .
Sick individuals thirsty appetite they usually misinterpreted ( lick the walls and ground) . Comes atony of the gastrointestinal tract . Sick animals are quickly depleted and weakened . Molokootdelenie sharply reduced and sometimes does not return to normal.