Journal of clinical virology : the official publication of the Pan American Society for Clinical Virology · 2008
Cross-reactive IgM responses in patients with dengue or Japanese encephalitis.
СтатьяПоддержка исследования: вне правительства СШАНазвание и аннотация: Перевод в очереди
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A-Nuegoonpipat Atchareeya, Panthuyosri Nirandorn, Anantapreecha Surapee, Chanama Sumalee, Sa-Ngasang Areerat, Sawanpanyalert Pathom, Kurane Ichiro
Аннотация
BACKGROUND: Dengue and Japanese encephalitis viruses co-circulate in Thailand. IgM-capture enzyme-linked immunosorbent assay (ELISA) has been widely used for confirmation of dengue and Japanese encephalitis (JE).
OBJECTIVES: To examine the cross-reactivity in IgM responses to dengue and JE viruses in serum and CSF samples from dengue and JE patients.
STUDY DESIGN: Two hundred and fifty-eight serum samples from 177 confirmed dengue patients, and 99 serum samples and 37 cerebrospinal fluid (CSF) samples from confirmed JE patients were analyzed.
RESULTS: Nine percent of serum samples from dengue patients were positive for anti-JE IgM. Thirteen percent of serum samples and 11% of CSF samples from JE patients were positive for anti-dengue IgM. Levels of cross-reactive IgM were lower than those of specific IgM in all the dengue and JE patients.
CONCLUSIONS: Only specific IgM is detected in about 90% of dengue and JE patients, but cross-reactive IgM is also detected in the remainder. The presence of cross-reactive IgM responses should to be considered in the serodiagnosis of dengue and JE, especially in areas where dengue and JE viruses co-circulate.
OBJECTIVES: To examine the cross-reactivity in IgM responses to dengue and JE viruses in serum and CSF samples from dengue and JE patients.
STUDY DESIGN: Two hundred and fifty-eight serum samples from 177 confirmed dengue patients, and 99 serum samples and 37 cerebrospinal fluid (CSF) samples from confirmed JE patients were analyzed.
RESULTS: Nine percent of serum samples from dengue patients were positive for anti-JE IgM. Thirteen percent of serum samples and 11% of CSF samples from JE patients were positive for anti-dengue IgM. Levels of cross-reactive IgM were lower than those of specific IgM in all the dengue and JE patients.
CONCLUSIONS: Only specific IgM is detected in about 90% of dengue and JE patients, but cross-reactive IgM is also detected in the remainder. The presence of cross-reactive IgM responses should to be considered in the serodiagnosis of dengue and JE, especially in areas where dengue and JE viruses co-circulate.