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Results of a survey to determine whether Neospora is a significant cause of ovine abortion in England and Wales
Author(s) -
Otter A.,
Wilson B. W.,
Scholes S. F. E.,
Jeffrey M.,
Helmick B.,
Trees A. J.
Publication year - 1997
Publication title -
veterinary record
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.261
H-Index - 99
eISSN - 2042-7670
pISSN - 0042-4900
DOI - 10.1136/vr.140.7.175
Subject(s) - neospora caninum , neospora , abortion , encephalitis , toxoplasma gondii , biology , titer , bison bison , veterinary medicine , virology , antibody , pregnancy , medicine , immunology , virus , ecology , genetics
Between January and April 1995, the brains and hearts of 281 aborted lambs derived from 209 submissions to veterinary investigation centres in England and Wales were examined histologically. One‐hundred‐and‐seventy‐nine samples of fetal pleural fluid from these lambs and 141 from lambs not examined histologically were examined for antibodies to Neospora by an indirect fluorescent antibody test. Non‐suppurative myocarditis and encephalitis were present in nine lambs. Immunocytochemistry using antisera against Neospora caninum and Sarcocystis species resulted in no labelling but antisera to Toxoplasma gondii revealed labelled organisms in four lambs. No significant antibody titres against Neospora were detected in any of the samples of fetal pleural fluid. These results suggest that Neospora infection is not associated with significant numbers of abortions in sheep in England and Wales.