{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,13]],"date-time":"2025-11-13T12:15:44Z","timestamp":1763036144773,"version":"3.38.0"},"reference-count":5,"publisher":"American Veterinary Medical Association (AVMA)","issue":"12","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["javma"],"published-print":{"date-parts":[[2004,12,15]]},"abstract":"<jats:title>Abstract<\/jats:title>\n\t\t\t\t<jats:p>\n\t\t\t\t\t<jats:bold>Objective<\/jats:bold>\u2014To determine whether administration of\nkilled West Nile virus vaccine was associated with\npregnancy loss among broodmares.<\/jats:p>\n\t\t\t\t<jats:p>\n\t\t\t\t\t<jats:bold>Design<\/jats:bold>\u2014Retrospective cohort study.<\/jats:p>\n\t\t\t\t<jats:p>\n\t\t\t\t\t<jats:bold>Animals<\/jats:bold>\u2014595 mares.<\/jats:p>\n\t\t\t\t<jats:p>\n\t\t\t\t\t<jats:bold>Procedure<\/jats:bold>\u2014Records of pregnant mares with known\nvaccination history from 4 farms were reviewed.\nInformation obtained from 595 mares included mare's\nidentification; farm; age; breed; reproductive status;\nlast breeding date; date last known pregnant; vaccination\ndate; age of conceptus at vaccination; vaccination\nduring the early embryonic, early fetal, and late fetal\nperiods; and whether an early embryonic death (EED),\nearly fetal loss (EFL), or late fetal loss (LFL) occurred.\nThe relationships between the dichotomous outcomes\nof loss (eg, EED, EFL, LFL) and independent categoric\nvariables (eg, vaccination during the early embryonic,\nearly fetal, or late fetal periods) were examined.<\/jats:p>\n\t\t\t\t<jats:p>\n\t\t\t\t\t<jats:bold>Results<\/jats:bold>\u2014Vaccination of pregnant mares during any\nperiod of gestation was not associated with increased\nincidence of pregnancy loss.<\/jats:p>\n\t\t\t\t<jats:p>\n\t\t\t\t\t<jats:bold>Conclusions and Clinical Relevance<\/jats:bold>\u2014Many mares\nare already pregnant at the onset of mosquito season,\nwhen mares are more likely to be vaccinated than at\nother times. Our findings provide evidence that vaccine\nadministration will not compromise pregnancy in\nhorses. (<jats:italic>J Am Vet Med Assoc<\/jats:italic> 2004;225:1894\u20131897)<\/jats:p>","DOI":"10.2460\/javma.2004.225.1894","type":"journal-article","created":{"date-parts":[[2006,7,7]],"date-time":"2006-07-07T17:49:07Z","timestamp":1152294547000},"page":"1894-1897","source":"Crossref","is-referenced-by-count":10,"title":["Evaluation of administration of West Nile virus vaccine to pregnant broodmares"],"prefix":"10.2460","volume":"225","author":[{"given":"Dickie J.","family":"Vest","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Noah D.","family":"Cohen","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Christopher J.","family":"Berezowski","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"James P.","family":"Morehead","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Glenn P.","family":"Blodgett","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Terry L.","family":"Blanchard","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1272","reference":[{"key":"p_1_185","unstructured":"USDA. Animal and Plant Health Inspection Service Web site. West Nile Virus (WNV). Available at: www.aphis.usda.gov\/lpa\/issues\/ wnv\/wnv.html. Accessed May 19, 2004."},{"key":"p_2_186","unstructured":"Lost Foals Group. Lost Foals Group home page. Available at: www.lost-foals-group.4t.com. Accessed May 19, 2004."},{"key":"p_3_187","unstructured":"Fort Dodge Animal Health. West Nile Virus. Available at: www.equinewestnile.com. Accessed May 19, 2004."},{"key":"p_4_188","first-page":"499","author":"Ginther OJ","year":"1992","journal-title":"Wis: Equiservices"},{"key":"p_5_189","doi-asserted-by":"publisher","DOI":"10.1016\/0378-4320(89)90088-2"}],"container-title":["Journal of the American Veterinary Medical Association"],"original-title":[],"link":[{"URL":"https:\/\/avmajournals.avma.org\/view\/journals\/javma\/225\/12\/javma.2004.225.1894.xml","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/avmajournals.avma.org\/downloadpdf\/journals\/javma\/225\/12\/javma.2004.225.1894.xml","content-type":"text\/html","content-version":"vor","intended-application":"syndication"},{"URL":"https:\/\/avmajournals.avma.org\/downloadpdf\/journals\/javma\/225\/12\/javma.2004.225.1894.xml","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,3,7]],"date-time":"2025-03-07T13:57:20Z","timestamp":1741355840000},"score":1,"resource":{"primary":{"URL":"https:\/\/avmajournals.avma.org\/view\/journals\/javma\/225\/12\/javma.2004.225.1894.xml"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2004,12,15]]},"references-count":5,"journal-issue":{"issue":"12"},"URL":"https:\/\/doi.org\/10.2460\/javma.2004.225.1894","relation":{},"ISSN":["0003-1488"],"issn-type":[{"type":"print","value":"0003-1488"}],"subject":[],"published":{"date-parts":[[2004,12,15]]}}}