首页    期刊浏览 2024年10月07日 星期一
登录注册

文章基本信息

  • 标题:Calves as a Potential Reservoir of Cryptosporidium Parvum and Giardia Sp
  • 本地全文:下载
  • 作者:Malgorzata Bednarska ; Anna Bajer ; Edward Sinski
  • 期刊名称:Annals of Agricultural and Environmental Medicine
  • 印刷版ISSN:1232-1966
  • 电子版ISSN:1898-2263
  • 出版年度:1998
  • 卷号:5
  • 期号:02
  • 出版社:Institute of Agricultural Medicine in Lublin
  • 摘要:

    Studies on cryptosporidiosis and giardiosis were carried out between March and
    April 1997 on 75 calves from 9 selected farms of Wielkopolska macroregion. Faecal
    specimens from calves, 3–13 days old, were screened for oocysts of C. parvum using Ziehl-
    Neelsen staining and both for oocysts of C. parvum and cysts of Giardia sp. using direct
    immunofluorescent (MerIFluor Cryptosporidium/Giardia) assay. The oocysts of C. parvum
    assessed by Ziehl-Neelsen staining were revealed on 6 (67%) of 9 farms examined. The
    prevalence of infection ranged from 20–88%, and in some farms intensity of oocyst shedding
    was very high. However, in 35 calves assessed for mixed infections of C. parvum and
    Giardia sp., oocysts of Cryptosporidium were found in 18 (51%) calves and cysts of
    Giardia sp. were detected in 5 (14%) of 35 calves. Only in one calf was found coinfection
    with both parasites. The intensity of Giardia sp. infection was extremely low. Histological
    examination of the gut sections from immunosuppressed BALB/c mice experimentally infected
    with C. parvum isolates from calves revealed endogenous stages of C. parvum on the brush
    border of the ileum. The high prevalence and intensive shedding of cryptosporidial oocysts by
    calves in farms examined in this study suggests that naturally infected calves may be significant
    reservoirs for C. parvum infections in man and wild animals.

  • 关键词:Cryptosporidium parvum; Giardia sp.; calves; reservoir; prevalence
国家哲学社会科学文献中心版权所有