Age distribution of horses in Kentucky infected with the eye worm Thelazia lacrymalis
Lyons, E.T.; Drudge, J.H.; Tolliver, S.C.
Journal of the American Veterinary Medical Association 176(3): 221-223
1980
ISSN/ISBN: 0003-1488 PMID: 7189189 Document Number: 161040
Of 202 horses examined at autopsy from January to July 1979 in Kentucky, USA, 60 (30%) were infected with Thelazia lacrymalis. 41 horses had worms in both eyes. The highest number of worms/horse was 130. Data on age distributions of infected horses in this and a previous (1975-76) study [see Hm/A 45, 4452 and 46, 3039] are tabulated. The highest proportion of horses infected with T. lacrymalis was <1 to 3 years old. The infection rate of 4- to 8-year-olds was higher, in general, than that of older horses.