Operator safety during injection vaccination of fish.

Reports of adverse health effects to vaccinators after self-injection of fish vaccine motivated the present study which aimed at identifying risk factors and improving risk management. Information was collected through interviews with members of professional vaccinator teams, and with physicians who had treated injured vaccinators. In addition, a questionnaire was distributed among salmon farmers.

[Health risks of vaccination of farmed fish].

In 1991, three cases of anaphylactoid reactions among vaccinators of farmed fish were registered in Norway. The reactions developed after repeated accidental self-injection of vaccine against salmon furunculosis. In 1991, some 60 million salmon were vaccinated against furunculosis at approximately 50 grams body weight.

Controlling tick infestations and diseases in sheep by pour-on formulations of synthetic pyrethroids. A field study.

The use of synthetic pyrethroids in pour-on formulations reduced tick infestations and the incidence of tick-associated diseases in lambs more than dipping in organophosphate acaricides. Though the use of pyrethroids did not prevent the lambs from being infected with tick-borne fever (TBF), the incidence of lambs with lameness (tick pyaemia) or lambs suddenly found dead (Pasteurella haemolytica septicaemia), which often are seen in association with TBF, was reduced. The use of pyrethroids for three years did not seem to affect the prevalence of TBF.

Atrophic rhinitis in goats in Norway.

The spontaneous occurrence of atrophic rhinitis in 12 of 49 goat herds in one area of Norway is described. The clinical signs included nose bleeding, nasal discharge, sneezing and tender noses. Pathologically, the macroscopic and histological findings resembled those found in pigs with atrophic rhinitis.

Vaccination against atrophic rhinitis: effect on clinical symptoms, growth rate and turbinate atrophy.

Two combined Pasteurella multocida/Bordetella bronchiseptica whole cell bacterins were tested in 15 swine herds in which atrophic rhinitis (AR) was a problem, though of varying significance. One half of the sows/litters in each herd was vaccinated, the other half acting as a control group. Vaccination resulted in reduced clinical symptoms of AR and an average increase in weight gain of 2.

The effect of atrophic rhinitis on growth rate.

Growth rate in pigs with turbinate atrophy was compared to growth rate in pigs without turbinate atrophy in 9 herds with atrophic rhinitis (AR) in which toxigenic strains of Pasteurella multocida had been isolated. Average reduction in growth rate in pigs with severe turbinate atrophy was 4.7 % as compared to pigs without turbinate atrophy.

Influence of vitamin E and selenium supplement on antibody production in horses.

Fifteen horses used for serum production were maintained on low vitamin E and selenium diets. They were divided into four groups receiving: Group 1 no supplements, Group 2 vitamin E, Group 3 selenium and Group 4 both vitamin E and selenium. The humoral immune response to novel antigens, such as tetanus toxoid and equine influenza virus, was increased in groups receiving either vitamin E or selenium/vitamin E.