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Table 1 The presence of DENV-2 antigen in the tracheal system correlates with early dissemination in Chetumal mosquitoes

From: Dengue virus type 2: replication and tropisms in orally infected Aedes aegypti mosquitoes

  2dpi 3dpi 5dpi 7dpi
DENV-2 infection Trachea Trachea Trachea Trachea
  (+) (-) (+) (-) (+) (-) (+) (-)
Disseminated 5 1 10 4 16 2 5 12
Non-Disseminated 1 12 2 8 1 3 2 3
Total 6 13 12 12 17 5 7 15
χ2 10.87 6.17 7.28 0.199
Significance ρ < 0.001 ρ < 0.01 ρ < 0.01 ρ >0.05
  1. The association of detection of viral antigen in the tracheal system with early dissemination of the virus was analyzed using 2 × 2 tables for each dpi. The criterion for dissemination of infection was detection of viral antigen in non-midgut tissues, including head squash tissues, fat body, and salivary glands.