Anaplasmosis is caused by Anaplasma bacteria which infect red blood cells. It is a disease of ruminants like cattle, buffalo, sheep and goats spread by ticks and insects. Clinical signs in mature cattle include fever, anemia, yellow urine, depression and loss of appetite. Diagnosis involves examining blood smears under a microscope and using serological tests. Control methods include treating infected animals with antibiotics like oxytetracycline and preventing transmission through tick control.