{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,5]],"date-time":"2026-10-05T22:59:40Z","timestamp":1791241180232,"version":"4.1.0"},"reference-count":28,"publisher":"Cambridge University Press (CUP)","issue":"3","license":[{"start":{"date-parts":[[2009,10,19]],"date-time":"2009-10-19T00:00:00Z","timestamp":1255910400000},"content-version":"unspecified","delay-in-days":9088,"URL":"https:\/\/www.cambridge.org\/core\/terms"}],"content-domain":{"domain":["journals.cambridge.org"],"crossmark-restriction":true},"short-container-title":["J. Hyg."],"published-print":{"date-parts":[[1984,12]]},"abstract":"<jats:title>Summary<\/jats:title><jats:p>In a preliminary seroepidemiological survey a total of 780 serum samples derived from various domestic animals of the Sudan were examined for Rift Valley fever (RVF) virus precipitating antibodies. The incidence was approximately 34\u00b73% in sheep, 33\u00b72% in cattle, 22%in goats, 7\u00b79% in camels and 4% in donkeys. The findings indicated that RVF is mainly prevalent in the rich savanna areas of the south as well as the irrigated areas close to the Nile in the north.<\/jats:p><jats:p>Circumstantial evidence suggests that the detected antibodies were induced by a long-standing cryptically cycling infection and that resurgence of extensive epizootics is unlikely although limited outbreaks may occur. It is concluded that RVF virus circulates across the country in a south\u2013north range along the Nile Valley with little or no extension to the drier lands to the east and west, and that ruminants are the primary species involved in virus maintenance. These species evidently serve as main amplifiers of infection during epizootics, but whether or not they also serve as sole virus reservoirs in inter-epizootic periods has yet to be determined.<\/jats:p>","DOI":"10.1017\/s0022172400065207","type":"journal-article","created":{"date-parts":[[2009,10,19]],"date-time":"2009-10-19T12:56:42Z","timestamp":1255957002000},"page":"629-637","update-policy":"https:\/\/doi.org\/10.1017\/policypage","source":"Crossref","is-referenced-by-count":25,"title":["Preliminary survey of domestic animals of the Sudan for precipitating antibodies to Rift Valley fever virus"],"prefix":"10.1017","volume":"93","author":[{"given":"M.","family":"Eisa","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"56","published-online":{"date-parts":[[2009,10,19]]},"reference":[{"key":"S0022172400065207_ref027","first-page":"21","volume-title":"Rift Valley Fever: An Emerging Human and Animal Problem","year":"1982"},{"key":"S0022172400065207_ref022","first-page":"347","article-title":"Rift Valley fever","volume":"27","author":"Shimshony","year":"1983","journal-title":"Advances in Veterinary Science and Comparative Medicine"},{"key":"S0022172400065207_ref024","doi-asserted-by":"publisher","DOI":"10.1016\/S0140-6736(80)91395-1"},{"key":"S0022172400065207_ref006","first-page":"107","article-title":"Zinga virus (ArB, 1967) a new arbovirus isolated in the Central African Republic","volume":"125 B","author":"Digoutte","year":"1974","journal-title":"Annals Microbiologie (Inst. 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Isolation of the virus from animals","volume":"57","author":"Imam","year":"1979","journal-title":"Bulletin of the World Health Organization"},{"key":"S0022172400065207_ref021","doi-asserted-by":"publisher","DOI":"10.1002\/path.1700860131"},{"key":"S0022172400065207_ref011","first-page":"343","article-title":"Rift Valley fever in the Sudan. I. Results on field investigations of the first epizootic in Kosti District, 1973","volume":"24","author":"Eisa","year":"1977","journal-title":"Bulletin of Animal Health and Production in Africa"},{"key":"S0022172400065207_ref009","doi-asserted-by":"publisher","DOI":"10.1016\/0035-9203(80)90122-4"},{"key":"S0022172400065207_ref026","doi-asserted-by":"publisher","DOI":"10.4269\/ajtmh.1982.31.149"},{"key":"S0022172400065207_ref028","first-page":"68","article-title":"The response of ponies to inoculation with Rift Valley fever virus","volume":"3","author":"Yedloutsching","year":"1981","journal-title":"Contributions to Epidemiology and Biostatistics"},{"key":"S0022172400065207_ref023","first-page":"42","article-title":"Immunologic status of Rift Valley fever virus","volume":"3","author":"Shope","year":"1981","journal-title":"Contributions to Epidemiology and Biostatistics"},{"key":"S0022172400065207_ref010","first-page":"349","article-title":"Rift Valley fever in the Sudan. II. Isolation and identification of the virus from a recent epizootic in Kosti District, 1973","volume":"24","author":"Eisa","year":"1977","journal-title":"Bulletin of Animal Health and Production in Africa"},{"key":"S0022172400065207_ref020","doi-asserted-by":"publisher","DOI":"10.1111\/j.1699-0463.1949.tb00751.x"},{"key":"S0022172400065207_ref025","first-page":"83","article-title":"Observations on Rift Valley fever in Zimbabwe","volume":"3","author":"Swanepoel","year":"1981","journal-title":"Contributions to Epidemiology and Biostatistics"},{"key":"S0022172400065207_ref002","first-page":"459","article-title":"The immunodiffusion test in Rift Valley fever","volume":"56","author":"Ayour","year":"1981","journal-title":"Journal of the Egyptian Public Health Association"}],"container-title":["Journal of Hygiene"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.cambridge.org\/core\/services\/aop-cambridge-core\/content\/view\/S0022172400065207","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2019,5,23]],"date-time":"2019-05-23T19:08:49Z","timestamp":1558638529000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.cambridge.org\/core\/product\/identifier\/S0022172400065207\/type\/journal_article"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1984,12]]},"references-count":28,"journal-issue":{"issue":"3","published-print":{"date-parts":[[1984,12]]}},"alternative-id":["S0022172400065207"],"URL":"https:\/\/doi.org\/10.1017\/s0022172400065207","relation":{},"ISSN":["0022-1724"],"issn-type":[{"value":"0022-1724","type":"print"}],"subject":[],"published":{"date-parts":[[1984,12]]},"assertion":[{"value":"Cambridge University Press 1984","name":"license","label":"License","group":{"name":"copyright_and_licensing","label":"Copyright and Licensing"}}]}}