Study of efficacy of lamstreptocide a & b on cases of dermatophilosis within the Caribbean

The efficacy of Lamstreptocide A & B was studied on 9 natural cases of bovine and caprine dermatophilosis in 8 different farms in St. Kitts, employing standard histopathologic and bacteriological methods. The lesions of 5 of the treated cases were dried-up and there was marked peeling-off of scabs of a severely affected case exposing erythematous underlying tissue, at 3 weeks post-application of the product. Apart from 3 mild cases which were not available for follow-up studies and which were reported to have recovered, there was no outright recovery of the 5 animals after treatment at 3 weeks, and even after a second application of the product. An in vitro sensitivity test of the product revealed a slowing down of growth of Dermatophilus congolensis at concentrations in excess of 1 percent by agarstreak method. However, there was no inhibition of growth of the bacterium by an agar-impregnated sensitivity method (AU)

Isolation of Rhodococcus equi from the abscess of a goat in Trinidad

Rhodococcus equi was first islolated from infected foals by Magnusson in 1923. On a review of R. equi infection in humans and animals, Prescott showed that only two cases of R. equi infection have been reported in goats. According to him, the organism has a tendency to cause liver abscesses, possibly following penetration from the intestinal tract. It is not clear to us how the animal acquired the infection. There is no information about close contact with horses in the farm or origin in England (AU)