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Table 1 Minimum infection rate (MIR) of Ae. aegypti and Ae. albopictus through successive generations

From: Vertical transmission of Indian Ocean Lineage of chikungunya virus in Aedes aegypti and Aedes albopictus mosquitoes

   Ae. aegypti Ae. albopictus
Generation No. tested Larvae Adults Larvae Adults
   Positive pools/Tested pools MIR (Mean ± SD) Ratio Positive pools/Tested pools MIR (Mean ± SD) Ratio Positive pools/Tested pools MIR (Mean ± SD) Ratio Positive pools/Tested pools MIR (Mean ± SD) Ratio
F1 600 5/30 8.33 ± 2.887 1:120 6/30 10.00 ± 3.333 1:100 11/30 18.33 ± 3.333 1:54.5 13/30 21.67 ± 2.887 1:46.2
F2 600 2/30 3.33 ± 1.665 1:300 4/30 6.67 ± 3.335 1:150 5/30 8.33 ± 2.887 1:120 7/30 11.67 ± 1.667 1:85.7
F3 600 3/30 5.00 ± 1.670 1:200 3/30 5.00 ± 3.333 1:200 4/30 6.67 ± 1.667 1:150 5/30 8.33 ± 1.667 1:120
F4 600 2/30 3.33 ± 0.000 1:300 2/30 3.33 ± 1.667 1:300 2/30 3.33 ± 1.667 1:300 4/30 6.67 ± 1.667 1:150
F5 600 1/30 1.67 ± 0.000 1:600 1/30 1.67 ± 1.667 1:600 3/30 5.00 ± 0.000 1:200 3/30 5.00 ± 1.667 1:200
F6 600 0/30 0 0 0 0 0 1/30 1.67 ± 0.000 1:600 1/30 1.67 ± 1.667 1:600
F7 600 0/30 0 0 0 0 0 0/30 0 0 0 0 0
F8 600 0/30 0 0 0 0 0 0/30 0 0 0 0 0
F9 600 0/30 0 0 0 0 0 0/30 0 0 0 0 0
  1. Each value is the average of the three independent experiments
  2. Ratio: Proportion of positive pool(s) by no. of larvae tested
  3. MIR expressed as Ratio