Journal of Veterinary Clinics (한국임상수의학회지)

The Korean Society of Veterinary Clinics (한국임상수의학회)
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Serological Response of Pups to the Selected Canine Vaccines and Vaccination Schedules against Canine Parvovirus

Canine parvovirus 함유 혼합백신들과 예방접종 스케줄에 따른 강아지의 혈청학적 반응

  • Kim, Doo (Department of Veterinary Medicine, Kangwon National University) ;
  • Jeoung, Seok-young (Department of Veterinary Medicine, Kangwon National University) ;
  • Ahn, So-jeo (Department of Veterinary Medicine, Kangwon National University) ;
  • Jung, Jong-ho (Department of Veterinary Medicine, Kangwon National University) ;
  • Park, Son-il (Department of Veterinary Medicine, Kangwon National University)
  • Published : 2004.03.01
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Abstract

This study was undertaken to provide the appropriate vaccination protocol of canine parvovirus (CPV) vaccine for the companion dogs in Korea. A total of 120 healthy pups (20 pups per group) at 6 weeks of age were randomly assigned to one of four commercially available vaccines [C, G, K, and V groups] and one of vaccination schedules [V2 and V4 groups]. The serological responses to the CPV component of the vaccines were determined by measuring HI titers. The maternal antibodies was declined to under the protective level at 6 weeks of age. Therefore, it was considered that vaccination of pups for CPV should be started at 6 weeks of age. And when the combination vaccine was used, the immunogenicity of V vaccine was superior to the other vaccines and optimum vaccination schedule was 3 times vaccination with 3 weeks-interval starting vaccination at 6 weeks of age. Although pups were vaccinated at 6 weeks of age, the geometric mean CDV titers of pups in all groups by 9 weeks of age were under the protective level. So, hygienic measures including avoiding to exposure to the high risk areas were needed to prevent CPV infection in this period.

본 연구에서는 우리나라 실정에 맞는 개 파보바이러스 백신의 예방접종 프로토콜을 마련하기 위하여, 국내에서 사용 중인 4종류의 상업용 백신과 3가지의 예방접종 스케줄에 따른 면역형성 능력을 비교 평가하였다. 생후 6주령에 예방접종을 실시하기 위하여 동물병원에 내원한 120두의 강아지를 4종류의 백신[C, G, K, V(또는 V3) 접종군]과 예방접종 스케줄[V2, V3, V4 접종군]에 따라 20두씩 임의배치하였다. 그리고 모체이행 항체의 소장상태를 확인하기 위하여 동복의 건강한 7마리의 강아지를 예방접종을 실시하지 않고 17주 동안 관찰하였다. C, G, K, V(또는 V3) 접종군은 3주 간격으로 3회(6, 9, 12주), V2군은 5회(6, 8, 10, 12, 14주), V4군은 3회(6, 10, 14주)에 피하로 예방접종을 실시하였다. 혈액은 생후 6주에 처음 채취하고 매 추가접종을 실시할 때와 마지막 예방접종을 실시한 후 3주 후에 한 번 더 채취하였으며 개 파보바이러스에 대한 혈청 혈구응집억제 항체가를 측정하였다. Seroconversion(혈청변환)은 전번의 항체가보다 4배 이상 증가하는 것으로 정의하였다. 파보바이러스에 대한 강아지의 모체이행항체는 6주령에 방어수준 이하로 떨어졌으며 개 파보바이러스에 대한 예방접종은 6주령에 시작하여야 할 것으로 생각되었다. 백신에 따른 면역형성능에서 V 백신의 면역형성 능력이 다른 백신보다 우수하였으며 백신 종류에 따라 면역형성 능력에 차이가 인정되므로 사용되는 백신의 효능을 주기적으로 평가하여야 할 것으로 판단되었다. 그리고 혼합백신을 사용하는 경우 예방접종 스케줄은 6주령에 예방접종을 시작하여 3주 간격으로 3회 접종하는 것이 합리적인 건으로 판단되었다. 그러나 예방접종을 실시한 모든 군의 대부분의 강아지는 생후 9주령까지 항체가 수준이 방어수준 이하로 나타나 개 파보바이러스의 감염을 예방하기 위하여 이 시기까지는 감염위험성이 높은 곳에 노출되는 것을 피해야 할 것으로 생각되었다.

Keywords

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