[Pasteurella multocida infections in birds following cat bites (author's transl)]. / Pasteurella multocida infecties bij vogels na een kattebeet.

Infection with Pasteurella multocida caused by bites has been known for several decades. Cats are an important factor in Pasteurella multocida infection. Considerable numbers of victims are 'rescued' from the mouths of cats and submitted to bird reception centres for treatment. A number of bird shelters sent birds in this condition to the present authors for closer examination. The majority of birds caught by cats die. The mortality rates in shelters were reported to be 30, 90, 99 and one hundred per cent. Of the birds rescued alive from the mouths of cats, approximately 40 per cent died from the direct effects of the bites, and approximately 60 per cent died from Pasteurella multocida infection.

[Fowl Cholera. Preventive treatment with antibiotics (author's transl)]. / Vogelcholera--preventive behandeling met antibiotica.

In view of an outbreak of fowl cholera in the duck-and turkey-farming industry, the possibility of instituting long-term preventive treatment of recently acquired birds on the farms involved was studied. Satisfactory results were obtained in Peking-ducks and turkeys when chlortetracycline was administered at a concentration of at least 100 ppm in the feed for three weeks. Satisfactory results were also obtained using a combined preparation of neomycin and oxytetracycline in muscovy ducks or a preparation of neomycin, chloramphenicol and chlortetracycline in Peking-ducks following experimental infection.

[Serological typing of isolates of Pasteurella multocida from poultry and other animals in the Netherlands (author's transl)]. / Serotypering van Pasteurella multocida isolaten uit pluimvee en andere diersoorten in Nederland.

Pasteurella multocida isolates, isolated from poultry, birds and mammals in the Netherlands, were typed serologically. The standard sera were directed against Heddleston reference strains. Of the 202 isolates, 37.6 per cent were of type 1, 24.2 per cent of type 3, 2 per cent of type 5, 5.9 per cent of type 10 and 3.5 per cent of type 12. Cross reactions with two serotypes were shown by 18.8 per cent of the other isolates and with three serotypes by 3.5 per cent. The serotype of P. multocida isolates from several animals of the same flock on three farms was determined. Practically all the isolates from one and the same farm were found to be of the same serotype. The resulting prospects of serotyping for the use of vaccines are referred to.