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Table 1 Midgut infection and midgut escape rates of DENV2 strains/isolates QR94, PR159, EM33, EM41, and Jam1409 in Aedes aegypti strains D2S3, Chetumal, or HWE at 14 days pbm

From: Isolation of midgut escape mutants of two American genotype dengue 2 viruses from Aedes aegypti

DENV2 strain/isolate (Ae. aegypti strain)

No. of mosquitoes

Midgut infection rate (%)

Midgut dissemination rate (%)

QR94 (D2S3)

30

70a

62a

QR94 (Chetumal)

30

70a

67a

Jam1409 (D2S3)

21

100b

100b

Jam1409 (Chetumal)

30

100b

97b

PR159 (HWE)

30

13a

3a

EM41 (HWE)

30

60b

50b

Jam1409 (HWE)

30

97c

77b

QR94 (HWE)

27

56a

0a

EM33 (HWE)

29

34a

40b

Jam1409 (HWE)

30

80b

85c

  1. Calculation of midgut dissemination rates was based on those individuals whose midguts were DENV2 infected. Letters a, b, cnext to numbers represent statistically significant groupings (Fisher's exact test; p-value: <0.05).