The document describes several tick-borne diseases that affect cattle: 1) Theileriosis is caused by Theileria parasites and transmitted by ticks. It causes fever and enlargement of lymph nodes. Diagnosis is by blood and lymph node smears showing schizonts. 2) Babesiosis is caused by Babesia parasites and transmitted by ticks. It causes fever, anemia, and abortion. Diagnosis is by blood smears showing the parasites in red blood cells. 3) Anaplasmosis is caused by Anaplasma marginale bacteria transmitted by ticks. It causes fever, anemia, and jaundice. Diagnosis is by blood smears showing the bacteria attached to red