HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by Roberts, D. R. Articles by Llewellyn, C. H. Search for Related Content PubMed PubMed Citation Articles by Roberts, D. R. Articles by Llewellyn, C. H.

Oropouche Virus

III. ENTOMOLOGICAL OBSERVATIONS FROM THREE EPIDEMICS IN PARÁ, BRAZIL, 1975^*

Donald R. Roberts, Alfred L. Hoch, Kenneth E. Dixon AND Craig H. Llewellyn

Urban epidemics of Oropouche (ORO) fever in three municipalities in Pará, Brazil were studied in 1975. Culicoides paraensis (Goeldi) were collected during each of the epidemics and there was a positive correlation, by study areas within the city of Santarém, between human seropositivity to ORO virus and population densities of C. paraensis and Culex quinquefasciatus Say. The best numerical correlation was with populations of C. paraensis. The relative absence of other species in the areas of high disease attack rates was further evidence C. paraensis were the probable vectors of ORO virus. These biting midges were found to bite readily inside of houses, with an indoor/outdoor ratio of 29%, and were most active around 1700–1800 hours. Other biological observations on C. paraensis are presented.

Accepted for publication October 6, 1979.

^* This program was conducted under the auspices of the Ministério da Saúde Pública of Brazil. The research was conducted at the Evandro Chagas Institute, Belém, Brazil, under PAHO Project BRA 4311 and supported by Research Contract Number DAMD 17-74-G-9387 from the U.S. Army Medical Research and Development Command, Office of the Surgeon General, Washington, D.C. The opinions contained herein are those of the authors and should not be construed as official or reflecting the views of the Department of the Army.

Address reprint requests to: Library, Walter Reed Army Medical Center, Walter Reed Army Institute of Research, Washington, D.C. 20012.

Colonel, MC, U.S. Army, presently assigned as Chief, Communicable Diseases and Immunology Research Division, Medical Directorate, U.S. Army Research and Development Command, Washington, D.C. 20012.

This article has been cited by other articles:

				F. Pinheiro, A. Travassos da Rosa, M. Gomes, J. LeDuc, and A. Hoch Transmission of Oropouche virus from man to hamster by the midge Culicoides paraensis Science, March 5, 1982; 215(4537): 1251 - 1253. [Abstract] [PDF]