O'nyong-nyong fever in south-central Uganda, 1996-1997: Clinical features and validation of a clinical case definition for surveillance purposes
O'nyong-nyong fever in south-central Uganda, 1996-1997: Clinical features and validation of a clinical case definition for surveillance purposes
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DOI:
10.1086/313462
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发表时间:
1999-11-01
影响因子:
11.8
通讯作者:
Campbell, GL
中科院分区:
文献类型:
--
作者:
Kiwanuka, N;Sanders, EJ;Campbell, GL
O'nyong-nyong (ONN) fever, caused by infection with a mosquito-borne central African alphavirus, is an acute, nonfatal illness characterized by polyarthralgia, During 1996-1997, south-central Uganda experienced the second ONN fever epidemic ever recognized. Among 391 persons interviewed and sampled, 40 cases of confirmed and 21 of presumptive, well-characterized acute, recent, or previous ONN fever were identified through active case-finding efforts or during a household serosurvey and by the application of clinical and laboratory criteria. Among confirmed cases, the knees and ankles were the joints most commonly affected. The median duration of arthralgia was 6 days (range, 2-21 days) and of immobilization was 4 days (range, 1-14 days). In the majority, generalized skin rash was reported, and nearly half had lymphadenopathy, mainly of the cervical region. Viremia was documented in 16 cases, primarily during the first 3 days of illness, and in some of these, body temperature was normal. During this epidemic, the combination of fever, arthralgia, and lymphadenopathy had a specificity of 83% and a sensitivity of 61% in the identification of cases of ONN fever and thus could be useful for surveillance purposes.