Bovine brucellosis: an investigation of latency in progeny of culture-positive cows.

Calves (n = 150) born to cows infected with field strains of Brucella abortus were weaned within 24 hours after birth or allowed to nurse until weaned (age at weaning ranged from 10 to 43 weeks). After weaning, female calves were placed in small groups in special pens constructed to prevent further direct and environmental exposure to brucellae. At weaning, male calves were moved to an isolated pasture and were kept as a single group.

IgE and IgG antibodies to beta-propiolactone and human serum albumin associated with urticarial reactions to rabies vaccine.

We examined the antibody response to a rabies vaccine doubly inactivated with 0.025% beta-propiolactone and 0.1% tri(n)butyl phosphate and stabilized with 2.

Brucella abortus in wildlife on selected cattle farms in Alabama.

Two studies of brucellosis in wildlife on farms where the brucellosis infection prevalence in cattle was known are reported. On a research farm, 233 feral animals of 22 mammalian species and 12 of seven avian species were trapped during three time periods. Sixty were studied before cattle were introduced, 128 were studied while 501 cattle infected with Brucella abortus were calving and aborting, and 60 specimens were collected 20 mo after the last infected cow calved.

Automobile accidents in Illinois veterinarians.

Interviews to solicit information on total automobile or truck travel, occupation related travel and automobile accidents were completed on 1082 non-military veterinarians in Illinois in 1969. Most had driven between 10,000 and 19,999 miles the previous year. Of the 1082 veterinarians interviewed, 313 had been in a total of 416 automobile accidents; of which 228 had been in only 1 accident, 69 in 2 accidents, 14 in 3 accidents and 2 veterinarians had 4 accidents each.

Can antibody responses in cattle vaccinated with a multivalent leptospiral bacterin interfere with serologic diagnosis of disease?

A commercially available leptospiral bacterin containing 5 serovars (canicola, grippotyphosa, hardjo, icterohemorrhagiae, pomona) was used per label directions to vaccinate 45 steers and bulls. In animals in which the prevaccination sera were negative for microscopic agglutinating antibody, the increase and decrease of titers were similar among all serovars. A serologic response was stimulated by a single dose and enhanced by the 2nd dose.