Vos A, Müller T, Selhorst T, Schuster P, Neubert A, Schlüter H
IDT, Rosslau, Germany.
Dtsch Tierarztl Wochenschr. 2001 Feb;108(2):55-9.
To optimise spring vaccination campaigns the following set of data has been analysed; (i) population dynamics of the red fox, (ii) onset and progress of the reproductive season, and (iii) maternal immunity and the immune response of fox cubs to oral vaccination. The field data originated from foxes caught in Bavaria, Germany. The results of our analysis clearly demonstrate that certain periods during spring are less suitable for bait distribution. If the objective of a vaccination campaign is to reach only the adult foxes, it is suggested to conduct the campaign during the first half of March. If also young foxes are to be vaccinated, baits should not be distributed before the end of May in previously baited areas, because a large segment of the young fox population can not be vaccinated effectively before this date as a result of maternally transferred immunity. In areas vaccinated for the first time, baits can be distributed earlier, since 5 weeks old cubs are already immunocompetent.
为优化春季疫苗接种活动，已对以下一组数据进行了分析：（i）赤狐的种群动态，（ii）繁殖季节的开始和进程，以及（iii）母源免疫和狐幼崽对口服疫苗的免疫反应。实地数据来自于在德国巴伐利亚捕获的狐狸。我们的分析结果清楚地表明，春季的某些时期不太适合投放诱饵。如果疫苗接种活动的目标仅是针对成年狐狸，建议在3月上半月开展活动。如果也要给幼狐接种疫苗，在先前投放过诱饵的地区，5月底之前不应投放诱饵，因为由于母源抗体的转移，在这个日期之前，很大一部分幼狐种群无法有效接种疫苗。在首次接种疫苗的地区，可以更早投放诱饵，因为5周龄的幼崽已经具有免疫能力。
