arbovirus vector ecology studies in mexico during the 1972 venezuelan equine encephalitis outbreak.virus vector studies were conducted in the states of durango, chihuahua, and tamaulipas, mexico, in june and july 1972. apparently only a low level of venzuelan equine encephalitis (vee) virus transmission to equines occured at the time of the study, and the infection was restricted to areas which had not experienced overt activity during the preceding year. the low level of infection was associated with a scarcity of mosquitoes. the ib (epidemic) strain of vee virus was isolated from two pools ...1975235213
seroprevalence of toxoplasma gondii infection in domestic horses in durango state, mexico.the seroprevalence of toxoplasma gondii infection in horses in mexico is unknown. therefore, antibodies to t. gondii were assessed in 495 horses in durango state, mexico, using the modified agglutination test (mat). horses were from 18 farms in 3 municipalities in the valley region of durango state. antibodies to t. gondii were found in 30 (6.1%) of 495 horses, with mat titers of 1:25 in 19, 1:50 in 6, and 1:100 in 5. seropositive horses were found in 8 (44.4%) of 18 farms sampled in all 3 munic ...201222559329
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