A PROSPECTIVE-STUDY OF DENGUE INFECTIONS IN BANGKOK
A PROSPECTIVE-STUDY OF DENGUE INFECTIONS IN BANGKOK
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DOI:
10.4269/ajtmh.1988.38.172
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发表时间:
1988-01-01
影响因子:
3.3
通讯作者:
SCOTT, RM
中科院分区:
文献类型:
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作者:
BURKE, DS;NISALAK, A;SCOTT, RM
Dengue infections were prospectively studied among 4- to 16-year-old students at a Bangkok school. Blood samples were obtained from 1,757 students in June 1980, before the dengue season, and in January 1981, after the season, and tested for dengue antibodies by the hemagglutination inhibition method. Classrooms were monitored daily for school absences. Fifty percent of the children had antibodies to and were presumably immune to, at least 1 dengue viruses during the study period were either asymptomatic or minimally symptomatic (absent only 1 dy). Most (7/13, 53%) of the symptomatic dengue infections (absent with fever for .gtoreq. 2 days) were clinically recognized as cases of dengue hemorrhagic fever which required hospitalization, whereas 7 of 56 secondary infections did (P = 0.012). Preexist dengue immunity, as detected by conventional serologic techniques, was a significant (odds ratio .gtoreq. 6.5) risk factor for development of dengue hemorrhagic fever.