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Table 2 Summary results of the bioassays with deltamethrin 0.05%

From: Insecticide resistance in malaria vectors along the Thailand-Myanmar border

Taxa

N a

% Mortalityb

% KDc

KDT50d

Statuse

An. scanloni (laboratory strain)

50

100 (na)

100 (na)

19.6 (18.4–20.7)

S

An. minimus (s.s.) (laboratory strain)

50

100 (na)

100 (na)

10.4 (9.4–11.4)

S

An. annularis (s.l.)

40

100 (na)

100 (na)

14.4 (13.1–15.6)

S

An. barbirostris (s.l.)

504

72 (68–76)

85 (82–88)

30.5 (28.7–32.4)

R

An. hyrcanus (s.l.)

172

33 (26–40)

27 (20–33)

131.3 (83–378.1)

R

An. jamesii (s.l.)

111

87 (81–94)

97 (94–100)

14 (11.7–16.2)

R

An. kochi

43

98 (93–100)

100 (na)

14.6 (13–16)

S

An. maculatus (s.l.)

280

85 (81–89)

89 (85–93)

18.8 (15.8–21.6)

R

An. minimus (s.l.)

370

92 (89–94)

99 (98–100)

15.4 (14.3–16.5)

SR

An. tessellatus

83

98 (94–100)

99 (96–100)

17.7 (16.6–18.8)

S

An. vagus

148

75 (68–82)

95 (91–98)

21.3 (19–23.4)

R

  1. a N: number of mosquito phenotyped
  2. b % Mortality: mortality rate (expressed in %) after 1 h of exposure to insecticide, recorded following a 24 h observation period; the values between parentheses indicate the 95% confidence interval of the mean mortality rate
  3. c % KD: rate of mosquitoes “knocked down” (KD, expressed in %) recorded after 1 h of exposure to insecticide; the values between parentheses indicate the 95% confidence interval of the mean KD rate
  4. d TKD50: time (expressed in minutes) necessary to “knock down” 50% of the mosquitoes; the values between parentheses indicate the 95% confidence interval of the TDKD50
  5. e Status: resistance status as defined by WHO [37]. Briefly, a mortality in the range 98–100% indicates susceptibility; a mortality between 90 and 97% indicates suspected resistance; a mortality < 90% indicates confirmed resistance as long as 100 specimens have been phenotyped
  6. Abbreviations: na, not applicable; R, resistant; S, suceptible; SR, suspected resistance