05/28/2026
Concerned about Theileria orientalis and Anaplasma marginale causing disease in your area? Then get registered for the 2026 AABP 59th Annual Conference Aug. 27-29 in Minneapolis, Minn., and listen to Dr. Dan Goehl address âTheileria and anaplasmosis: A practitioner's perspective of initial exposure in a naive population and current managementâ.
Anaplasmosis has been known and dealt with for a while, but Theileria is relatively new on the scene and is spread by the Asian Longhorn tick, which is gaining traction around the country. Goehl says, âI donât think in our area producers have had enough information to make a connection between anaplasmosis and Theileria. From the veterinary side, I feel like there is a distinction but I do find myself telling producers âIt is somewhat like anaplasmosisâ.â
Both diseases cause anemia in cattle, therefore may be lumped together by some. Theileria can also cause pyrexia, icterus, malaise, ill thrift, sporadic abortions and death in all ages of cattle (Watts, 2015).
âOne of the main distinctions for us is that Theileria is affecting much younger animals,â Goehl says. In contrast, anaplasmosis tends to affect animals two years of age or older. âWe have seen quite a bit in feeder cattle, but I am still unsure of significance,â he adds. âThe treatment success also seems to be much lower with Theileria vs. anaplasmosis.â Goehl says his main strategy right now for Theileria is to control the parasite, the Asian Longhorn Tick, which is also going to benefit anaplasmosis control.
All conference information can be found under the continuing education menu of the AABP website. For individual links:
⢠Session descriptions: https://aabp.org/meeting/sessions.asp
⢠Preconference seminar descriptions: https://aabp.org/meeting/preconference.asp
⢠Registration: https://aabp.org/meeting/default.asp
⢠Hotel reservations: https://aabp.org/meeting/hotels.asp
Early bird discount registration for in-person attendance closes July 16 at 5 pm Eastern, so register before then for the discounted rates!