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

2. Bos indicus X Bos taurus

3. Transmission: Various spp. of Ticks – Hyalomma anatolicum anatolicum H. dromedarii, H. marginatum, H. detritum

7. Enlargement of prescapular lymph nodes

10. Peripheral blood smear with Theileria spp.

13. Stained impression smear from an enlarged lymph node of a cow with Theileriosis.

16. Life cycle

20. Babesis bigemina parasites in two erythrocytes (top left and bottom right)

21. Diagram of Giemsa stained Babesia bovis infected erythrocytes.

23. Giemsa stained liver impression smear from B. bovis field case. Note clumping of infected erythrocytes (X1000)

29. Anaplasma marginale in bovine bloodg, located near the margin oferythrocytes.