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- W2003555594 abstract "A retrospective cross-section study to analyze the prevalence of herpes simplex virus-induced keratitis (HSK) among 3,000 patients attending a corneal clinic in South India between 1995 and 1997, and to evaluate laboratory techniques for detecting HSK.The clinico-virological correlation was studied using herpes simplex virus (HSV) isolation on the Vero cell line, HSV-specific antigen detection by indirect immunofluorescence (IF) microscopy, and serum anti-HSV IgG quantitation, IgM estimation, and tear secretory IgA (sIgA) detection by ELISA.HSK had a prevalence of 7.8% (234 patients) in this study. A virological correlation could be obtained in 44.4% of the cases that had epithelial manifestations and in 14.8% of the cases that had only stromal disease. In 161 cases where both culture and IF microscopy were used, IF detected 27 cases (26.8%) more than cell culture. The difference in sensitivity between cell culture and IF was found to be statistically significant (McNemar's test, P < .05). An elevation in IgG titer was seen in 17 (30.4%) cases. IgM was detected in only 2 cases of the 62 (3.2%) analyzed. Of the 138 cases analyzed, sIgA was positive in 28 (20.3%) cases. A proved diagnosis could be made in 58% of cases when the specimen was collected during the first week after disease onset, and in only 5% when the time interval increased to 4 weeks.HSV antigen detection by indirect IF is a rapid and sensitive diagnostic tool for HSK. Tear secretory IgA (sIgA) is a specific marker for acute herpetic keratitis, and the detection of HSV-specific tear sIgA is a valuable adjunct to virus isolation and antigen detection in the laboratory diagnosis of HSK. For a successful diagnosis, the specimen should be collected as soon as possible after HSK onset." @default.
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- W2003555594 date "1999-07-08" @default.
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- W2003555594 title "Herpes Simplex Keratitis in South India Clinico-Virological Correlation" @default.
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- W2003555594 doi "https://doi.org/10.1016/s0021-5155(99)00026-x" @default.
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