Table 1.

Description of specimens used in this study

Infection or diseaseTotal no. of specimensaNo. of specimens from patients with:Diagnosis verified by:
Acute primary infectionAcute secondary infectionRecent infectionUndetermined statusc
Dengue
    Serotype 110001RT-PCR and IgM/IgG ELISA
    Serotype 2160719RT-PCR and IgM/IgG ELISA
    Serotype 3471224011RT-PCR and IgM/IgG ELISA
    Serotype 420101RT-PCR and IgM/IgG ELISA
    Undeterminedb3323100IgM/IgG ELISA
    Subtotal991463122
Nondengue
    Chikungunya82RT-PCR and IgM ELISA
    Leptospirosis33Culture
    Bacteremia19Hemoculture
    Scrub typhus8IgM immunofluorescence
    Q fever7IgM immunofluorescence
    Tuberculosis4Culture
    Urinary tract infection5Culture
    Malaria1Blood smear
    Spotted fever1IgM immunofluorescence
    Subtotal160
Total259
  • a Specimens from patients with dengue infections comprised 38% of the total number of specimens, and specimens from patients with nondengue infections comprised 62% of the total number of specimens.

  • b The specimen was PCR negative.

  • c Only an admission sample was collected, so infection status could not be accurately determined.