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Volume 10, Number 10—October 2004

Research

Dengue Emergence and Adaptation to Peridomestic Mosquitoes

Abelardo C. Moncayo*1, Zoraida Fernandez*2, Diana Ortiz*, Mawlouth Diallo†, Amadou Sall†, Sammie Hartman*, C. Todd Davis*, Lark L. Coffey*, Christian C. Mathiot†, Robert B. Tesh*, and Scott C. Weaver*Comments to Author 
Author affiliations: *University of Texas Medical Branch, Galveston, Texas, USA; †Institut Pasteur, Dakar, Senegal; 1Current affiliation: Ohio Northern University, Ada, Ohio, USA.; 2Current affiliation: Instituto Venezolano de Investigaciones Cientificas, Caracas, Venezuela.; Dengue Emergence and Adaptation to Mosquitoes

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Table 6

DENV-2 infection and dissemination rates in Aedes albopictus (Brazil)a,b

Geographic population, generation Dengue strain % infected (totals) % disseminationc (totals)
Pindamonhangaba F1
New Guinea C (endemic) 76.9 (10/13) 90 (9/10)
33974 (sylvatic) 10.7 (3/28) 100 (3/3)
Pedrinhas F1
New Guinea C (endemic) 100 (10/10) 100 (10/10)
33974 (sylvatic) 10 (2/20) 50 (1/2)
Pedrinhas F2
1349 (endemic) 100 (17/17) 88 (15/17)
New Guinea C (endemic) 95.7 (22/23) 100 (22/22)
33974 (sylvatic) 46.2 (6/13) 100 (6/6)
2022 (sylvatic) 0 (0/15) 0 (0/0)
1407 (sylvatic) 33.3 (5/15) 0 (0/5)
Collapsed (Pedrinhas F2)d
Endemic 49.3 (39/79) 94.9 (37/39)
Sylvatic 21.4 (6/28) 100 (6/6)

aDENV, dengue virus; F2, second generation.
bBlood meal titers are found in Table 1.
cNumber of infected mosquitoes with virus in the legs.
dStrain 2022 data were not included in the collapsed analysis because they were significantly different than data for the other sylvatic strains.

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