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

The presence of DENV-2 antigen in the tracheal system correlates with early dissemination in Chetumal 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	ρ	ρ	ρ >0.05
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.

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