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Encephalitis on Taiwan
III. Virus Isolations from Mosquitoes
San-Pin Wang
San-Pin Wang
United States Naval Medical Research Unit No. 2, Taipei, Taiwan
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J. Thomas Grayston
J. Thomas Grayston
United States Naval Medical Research Unit No. 2, Taipei, Taiwan
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Stephen M. K. Hu
Stephen M. K. Hu
United States Naval Medical Research Unit No. 2, Taipei, Taiwan
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Summary
Over 100,000 Culex tritaeniorhynchus and over 150,000 Culex fuscocephalus mosquitoes caught on Taiwan throughout the year were tested for virus by inoculation into infant mouse brain. Virus was isolated from 22 pools of the former and 1 pool of the latter species. No virus was isolated from 9 other species tested. All but one virus isolation came from mosquitoes collected between July 3 and 26, 1958, and June 3 and 26, 1959. All positive C. tritaeniorhynchus pools were collected in northern Taiwan. The one positive C. fuscocephalus pool came from southern Taiwan. All isolated virus strains were shown to belong to the Japanese encephalitis virus group by complement fixation test. Neutralization tests with 6 Taiwan virus strains showed close similarity among the strains and prototype JE virus. It is concluded that C. tritaeniorhynchus is the important vector of JE virus in northern Taiwan.
Author Notes
Present address: Department of Preventive Medicine, University of Washington, Seattle 5, Washington.
Present address: United States Operation Mission, Nepal.
| Past two years | Past Year | Past 30 Days | |
|---|---|---|---|
| Abstract Views | 451 | 96 | 8 |
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| PDF Downloads | 6 | 2 | 0 |