Parasites, Hosts and Diseases
- Volume 34 Issue 4
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- Pages.255-258
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- 1996
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- 2982-5164(pISSN)
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- 1738-0006(eISSN)
Chronologic chrnge of serum IgG antibody response in chickens reinfected with Cryptosporidium baileyi
닭와포자충 재감염닭의 혈청1gG 항체가 추이
- Lee, Jae-Gu (Bio-Safety Research Institute, Chonbuk National University) ;
- Kim, Hyeon-Cheol (Bio-Safety Research Institute, Chonbuk National University) ;
- Park, Bae-Geun (Bio-Safety Research Institute, Chonbuk National University)
- Published : 1996.12.01
Abstract
Eight 2-day-old SPF Chickens were each inoculated Orally With 3 Sing1e dose Of 5 × 105 oocysts of Cryptosporinium boilevi. and immunoglobulin G (IgG) antibody responses were chronologically measured by indirect immunofluorescent antibody (IFA) assay. Anti-C. bcileyi IgG antibody levels remained high (1 : 106.67 to 1:512.00) for at least 4 months with 330 days of a detectable period. Ten days after the negative conversion, each chicken was re-challenged with 1 × 107 oocysts of the same species. Subsequent infection in 340-day-old individuals caused sudden elevated IgG antibody levels and the titer peaked on day 28 postchallenge inoculation (PCI), at 1:1.024 with a 65 days of detection period. Chickens in primary infection showed oocyst shedding profiles. but did not exhibit any oocyst shedding before or after experimental reinfection.
닭에 있어서 닭와포자충의 재감염에 대한 방어기전을 이해하기 위하여 장기간에 걸쳐 혈청IgG항체가를 경시적으로 조사하였다. 2일령의 SPF 병아리(Dekalb-Warren, Sex-Sal-Link)에