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Table 1 Plasmodium falciparum infection and dissemination in field-caught An. plumbeus and laboratory-reared An. gambiae Ngousso

From: Anopheles plumbeus (Diptera: Culicidae) in Europe: a mere nuisance mosquito or potential malaria vector?

   Anopheles plumbeus Anopheles gambiae Ngousso
  Day of observationa Exp. 1 Exp. 2b Exp. 3 Exp. 4 Exp. 1 Exp. 2 Exp. 3 Exp. 4
Prevalence (%) of midgut infection (no. positive / no. analysed) 8 67 ndc 40 4 100 100 87 73
  (20/30)   (12/30) (1/24) (30/30) (30/30) (26/30) (22/30)
15 75 15 43 10 100 100 67 70
  (36/48) (2/13) (22/51) (7/70) (32/32) (24/24) (20/30) (21/30)
Intensity of infection: Mean no. of oocysts / positive femaled (range) 8 8.9 ± 6.3 ndc 50.4 ± 56.0 12.0 ± 0 42.4 ± 28.2 71.5 ± 63.3 29.5 ± 23.5 13.7 ± 13.6
  (2–25)   (1–171) (12) (3–122) (1–233) (1–74) (1–48)
15 5.3 ± 4.9 2.0 ± 0 28.8 ± 14.4 2.4 ± 2.1 22.4 ± 25.2 44.8 ± 36.4 26.4 ± 23.7 10.7 ± 10.1
  (1–18) (2) (4–63) (1–6) (1–112) (1–146) (1–79) (1–45)
Prevalence (%) of females with sporozoitese (no. positive / no. analysed) 15 83 31 88 57 97 88 67 70
  (40/48) (4/13) (45/51) (40/70) (31/32) (21/24) (20/30) (21/30)
Intensity of infection: Mean no. sporozoites / positive femalef (no. analysed) 15 1,620 ndc 108 ndc 11,178 25,623 15,755 950
  (12)   (15)   (30) (30) (30) (30)
  1. Experiments 1 to 4 were performed in June, July, September and November, 2010, respectively.
  2. a After exposure to P. falciparum gametocytes.
  3. b Low number of An. plumbeus mosquitoes due to high mortality during transport.
  4. c Not determined.
  5. d Positive females are females with at least 1 detectable oocyst.
  6. e PCR detection[40] of P. falciparum DNA isolated from head/thorax.
  7. f Sporozoite quantification was performed using the Ozaki method[41]; total number was normalized to the oocyst prevalence at day 8.