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Volume 17, Number 5—May 2011

Research

Transstadial Transmission of Francisella tularensis holarctica in Mosquitoes, Sweden

Jan O. LundströmComments to Author , Ann-Christin Andersson, Stina Bäckman, Martina L. Schäfer, Mats Forsman, and Johanna Thelaus
Author affiliations: Authors affiliations: Uppsala University, Uppsala, Sweden (J.O. Lundström, M.L. Schäfer); Swedish Defence Research Agency, Umeå, Sweden (A.-C. Andersson, S. Bäckman, M. Forsman. J. Thelaus)

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Table 2

Presence of Francisella tularensis lpnA and F. tularensis holarctica–specific 30-bp–deletion region in water samples and in pools of mosquitoes hatched from larvae collected in the Orebro area, Sweden*

Pond
Water
Mosquitoes
Container
F. tularensis
F. tularensis holarctica
Pools
F. tularensis
F. tularensis holarctica
Ormesta 1 A Yes Yes 2 (2) 1 ND

B
Yes
ND

6 (28)
ND
ND
Ormesta 2 C ND ND 6 (74) 2 ND
D Yes ND 9 (79) 4 3
E ND ND 6 (45) 3 ND
F Yes ND 8 (61) 2 ND

G
ND
ND

5 (27)
1
ND
Vattenpark
H
Yes
Yes

6 (18)
1
1
Total 8 5 2 48 (334) 14 4

*Water samples were collected from each mosquito-breeding container on arrival at the laboratory. Numbers in parentheses refer to number of mosquito specimens within pools. Sampling locations are Ormesta and Vattenpark. ND, not detected.

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