ECOLOGY OF ARBOVIRUSES IN HALE COUNTY TEXAS DURING 1965
ECOLOGY OF ARBOVIRUSES IN HALE COUNTY TEXAS DURING 1965
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DOI：
10.4269/ajtmh.1967.16.675
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发表时间：
1967-01-01
影响因子：
3.3
通讯作者：
HOLDEN, P
中科院分区：
文献类型：
--
作者：
HAYES, RO;LAMOTTE, LC;HOLDEN, P
A study was conducted in Hale County, Texas, during 1965 to obtain data on the arboviruses, arthropod vectors, and their reservoir hosts. Eleven human cases of western encephalitis [WE] and 4 cases of St. Louis encephalitis [SLE] were confirmed among 46 suspected cases reported by physicians from the Hale County area. A total of 128 virus isolations obtained from Culex tarsalis, of these 81 were WE virus and 4 were SLE. There also were 37 isolations of Hart Park virus and 6 isolations of Turlock virus from C. tarsalis. Weekly transect counts of adult wild birds revealed that house sparrows comprised 71 percent of the bird population. Two-hundred-thirteen blood samples were obtained from nestling house sparrows and 51 arbovirus isolations were obtained. Thirty-eight of these were WE, 7 were SLE, 4 were Turlock, and 2 were Hart Park virus. Ten virus isolations were made from 572 mammal bloods; 9 were WE, and 1 was Turlock. The data obtained on C. tarsalis seasonal populations and on the correlation between WE virus infection rates among C. tarsalis and Passer domesticus nestlings provided new insight regarding the basic involvement of these nestUng birds in the WE virus amplification cycle in this study area. Except for the index human case, WE virus activity detected among sentinel chickens, wild mammals, and humans commenced after that in C. tarsalis and P. domesticus.
