Table 2 Repellent activity (median complete protection time: Median CPT) of the ethanolic formulations of AHE, AHEv (AHE + 5 % vanillin), DEET and DEETv (DEET+ 5 % vanillin) against female Ae. aegypti

5 %

2.0 (2.0–3.5) a A

4.0 (3.0–4.5) a B

2.25 (1.5–2.5) a A

4.25 (3.5–6.0) a B

10 %

3.0 (2.5–3.0) a A

4.75 (4.5–5.0) ab B

3.0 (3.0–4.0) b A

5.0 (4.0–6.5) a B

15 %

4.0 (2.5–4.0) ab A

5.5 (4.5–6.5) bc B

6.0 (5.0–6.5) c B

7.5 (6.5–8.5) b C

20 %

4.75 (4.0–6.0) bc A

7.5 (7.0–7.5) d B

7.0 (6.0–7.0) cd B

8.0 (7.0–8.5) b B

25 %

6.50 (6.0–8.0) d A

8.5 (7.0–10.5) d A

7.25 (7.0–8.0) d A

8.25 (8.0–8.5) b A