CASE REPORT Transitional Cell Carcinoma and Subsequent Rupture of the Canine Bladder: A Case Report and Review of the Literature

SCHNEIDER LG, COX JH. Field experiment for oral immunization offoxes against rabies in the Federal Republic of Germany. I. Safety, efficacy and stability of vaccine SAD B19. Tierarztliche Umschau 1983; 38: 315-320, 323-324. (Bundesforschungsanstalt f. Viruskrankheiten der Tiere, Postfach 1 149, D-7400 Tubingen, German Federal Republic). The rabies virus variant SAD B19 was selected from cloned BHK cells and yielded a minimum titre of I X 108 TCID/ mL. Following the application ofSAD B 19 the residual pathogenicity for mice and rats was low. The vaccine virus was completely innocuous for muskrats. Following the feeding of foxes with baits containing vaccine, the 100% effective dose was 2 X 107 TCID/ mL. The same virus dose proved, under laboratory and field conditions, to be very temperature stable and vaccine which was up to 8 days in the field was still completely effective in foxes. In parallel, problems of personnel and costs concerning the production and mass application of the vaccine in the field were reduced due to technical improvements in filling, packaging and storage of the vaccine. A new form of bait preparation proved to be effective for foxes. The so-called "gullet baiting system" with chicken heads reduces the personnel necessary as well as the risks for man and animal. Reprinted from the "Veterinary Bulletin"' Volume 53, No. 8, August 1983. CUTLER RS, MOLITOR TW, LEMAN AD, WERDIN RE. Farm studies of porcine parvovirus infection. Journal of the American Veterinary Medical Association 1983; 6: 592-594. (Coll. Vet. Med., Univ., St. Paul, Minnesota 55108). Outbreaks of reproductive failure associated with porcine parvovirus infection were investigated on 38 farms. Mummification was common to all outbreaks. The mean number of mummified fetuses per affected litter was 3.1. Mean number of pigs born alive for gilts and sows farrowing litters with mummified fetuses was 5.0, but for sows without mummified litters on the same farms it was 9.0. Mummified fetuses were observed in aborted litters on eight (21.1%) farms. Gilts and sows that appeared pregnant but "lost" their swollen abdomens and failed to farrow were observed on 12 (39.5%) farms. Delayed return to oestrus was evident on only three (7.9%) farms with a continuous farrowing program. On 21 farms with a batch farrowing program, only two (10%) outbreaks involved more than one batch. Up to 100% of the pregnant swine in the group farrowing together produced mummified pigs, but less than 20% of the breeding herd was affected in 26 (68.4%) cases. The prevalence of disease was not related to herd size, housing, or farrowing management. Reprinted from the "Veterinary Bulletin". Volume 53, No. 7, July 1983. The diagnosis and control of viral respiratory diseases of dairy cattle. R.F. Kahrs (Coll. Vet. Med., Univ. Florida, Gainesville). Many viral infections contribute to the complex etiology of bovine respiratory diseases. Of these, only infectious bovine rhinotracheitis (1BR) and bovine viral diarrhea (BVD) present signs and lesions permitting clinical diagnosis. Bovine adenoviruses, rhinoviruses, parvoviruses, respiratory syncytial virus, parainfluenza-3 (PI-3) and the newer bovine herpesviruses require laboratory tests for recognition. Because these viruses are ubiquitous and may have a carrier state, control by hygienic measures and limiting herd additions rarely succeeds. Thus, vaccination is currently the most feasible method of prevention. Dairy cattle should be vaccinated against IBR, PI-3 and BVD prior to their 1st pregnancy, and earlier if management conditions permit. In general, modified live virus (MLV) vaccines are contraindicated for pregnant, stressed, sick, or exposed cattle. Inactivated vaccines, when available, are less hazardous than the MLV products but usually require repeated injections to induce partial protection. Vaccination schemes must be developed individually to suit the production-management systems on each farm. Presented at the 34th Canadian Veterinary Medical Association Annual Convention, Quebec City, Quebec, July 1982.