GAMBIAN HORSE DISEASE.
This disease was first recognized by Dutton and Todd, in 1902, among the horses of Senegambia. Of 36 examined, 10 were found to have the trypanosome in their blood. As far as known no other domestic animal is subject to the disease, although most mammals, including sheep, goats and cattle, can be infected.The natural disease is very chronic in character and differs from nagana by the absence of edemas. In the latter respect it agrees with caderas, but, as will be seen, the trypanosomes of these two diseases are easily differentiated. The duration of the disease is not known, though it probably lasts from a few months to more than a year. In an experimental infection of a horse, Laveran and Mesnil noted the formation of an edematous patch, but otherwise the animal did not appear to be ill. There was an occasional rise in temperature