Anopheles gambiae complex along The Gambia river, with particular reference to the molecular forms of An. gambiae s.s

Caputo, Beniamino; Nwakanma, Davis; Jawara, Musa; Adiamoh, Majidah; Dia, Ibrahima; Konate, Lassana; Petrarca, Vincenzo; Conway, David J; della Torre, Alessandra

doi:10.1186/1475-2875-7-182

Table 3 Distribution of Anopheles gambiae s.s. molecular forms in the study area.

From: Anopheles gambiae complex along The Gambia river, with particular reference to the molecular forms of An. gambiae s.s

Site code	Village	Date	N	M (%)	CIs	S (%)	CIs	M/S (%)	CIs
	LRA-W
1	Kartong	2–3/10/06	72	95	8 88.4–98.6	2.8	0.8–9.6	1.4	0.2–7.5
2	Mandinaba	9–10/11/2005 & 20/11/05	2	50.0	n/c	50.0	n/c	0.0	n/c
2	Mandinaba	28/09/05 to 2/10/06	106	58.5	49–67.4	37.7	29.1–47.2	3.8	1.5–9.3
3	Jiboro Kuta	27/9/06	12	91.7	64.6–98.5	8.3	1.5–35.4	0.0	0–24.2
	LRA-S
5	Tankular	13–14–15/11/05	14	85.7	60.1–96	7.1	1.3–31.5	7.1	1.3–31.5
5	Tankular	17–18/08/06	165	97.6	93.9–99.1	1.8	0.6–5.2	0.6	0.1–3.4
6	Keneba	12/10/05	24	95.8	79.8–99.3	4.2	0.7–20.3	0.0	0–13.8
6	Keneba	19/08/06	38	97.4	86.5–99.5	2.6	0.5–13.5	0.0	0–9.2
	LRA-N
7	Hamdalai	25/9/06	103	66.0	56.4–74.4	27.2	19.5–36.5	6.8	3.3–13.4
8a	Sare Samba Sowe	12–15/8/06	100	20.0	13.3–28.9	73.0	63.6–80.7	7.0	3.4–13.7
8b	Sare Samba Sowe	19–20/9/06	155	54.2	46.3–61.8	43.9	36.3–51.7	1.9	0.6–5.5
8	Sare Samba Sowe 2006	2006	255	40.8	34.9–46.9	55.3	49.1–61.3	3.9	2.1–7.1
9	Sare Illo Buya	14/8/06	30	50.0	33.2–66.9	33.3	19.2–51.2	16.7	7.3–33.6
10	Dai Mandinka	14/10/2006	24	100.0	86.2–100	0.0	0–13.8	0.0	0–13.8
11	Jajari	13/10/2006	20	95.0	76.4–99.1	5.0	0.9–23.6	0.0	0–16.1
12	Yallal	12–15/10/06	93	95.7	89.5–98.3	4.3	1.7–10.5	0.0	0–4
13	Ker Madi	13–14/10/05	68	100.0	94.7–1	0.0	0–5.3	0.0	0–5.3
13	Ker Madi	14/10/05	5	100.0	56.6–1	0.0	0–43.5	0.0	0–43.5
13	Ker Madi	11–13/08/06	27	96.3	81.7–99.3	3.7	0.6–18.3	0.0	0–12.5
14	Kalataba	13/08/06	25	76.0	56.6–88.5	20.0	8.9–39.1	4.0	0.7–19.5
15	Ballingho	13/10/05	34	97.1	85.1–99.5	0.0	0–10.2	2.9	0.5–14.9
15	Ballingho	13/10/05	5	100.0	56.6–100	0.0	0–43.5	0.0	0–43.5
	CRA
16	Teneng Fara	23–24/08/06	179	100.0	97.9–100	0.0	0–2.1	0.0	0–2.1
17	Wellingara Kejaw	17/10/05 & 16/11/05	6	100.0	61–100	0.0	0–39	0.0	0–39
17	Wellingara Kejaw	21–22/8/06	47	100.0	92.4–100	0.0	0–7.6	0.0	0–7.6
17	Wellingara Kejaw	22/8/06	18	100.0	82.4–100	0.0	0–17.6	0.0	0–17.6
18	Walikunda	22/8/06	10	100.0	72.3–100	0.0	0–27.8	0.0	0–27.8
19	Saruja	17/10/05 & 16/11/05	19	100.0	83.2–100	0.0	0–16.8	0.0	0–16.8
20	Darou Wallof	8–9/09/06	178	98.9	96–99.7	1.1	0.3–4	0.0	0–2.1
	URA
21	Kabakamma	18/10/05 & 28/10/05	1	100.0	n/c	0.0	n/c	0.0	n/c
22	Tinkinjo	18/10/05 & 28–10/05	6	83.3	43.7–97	0.0	0–39	16.7	3–56.4
22	Tinkinjo	25/08/06	12	91.7	64.6–98.5	8.3	1.5–35.4	0.0	0–24.3
23	Touba Tafsir	28/10/05 to 1/11/05	31	87.1	71.2–95	12.9	5.1–28.9	0.0	0–11
23	Touba Tafsir	28/10/05 to 1/11/05	33	90.9	76.4–96.9	9.1	3.1–23.6	0.0	0–10.4
24	Limbanbulu Yamadou	30/08/06 & 1/09/06	179	95.0	90.7–97.3	3.9	1.9–7.9	1.1	0.3–4
25	Kusunu	27/08/06	37	94.6	82.3–98.5	5.4	1.5–17.7	0.0	0–9.4
26	Kantel Kunda	27/08/06	13	30.8	12.7–57.6	61.5	35.5–82.3	7.7	1.4–33.3
	TAM
27	Jingoreh Mafy	21/10/2005 & 24/10/05	13	7.7	1.4–33.3	92.3	66.7–98.6	0.0	0–22.8
27	Jingoreh Mafy	10/09/06	67	28.4	19–40.1	71.6	59.9–81	0.0	0–5.4
28	Jingoreh Babagaleh	21/10/05	1	0.0	n/c	100.0	n/c	0.0	n/c
29	Amdalaye pont	11/9/06 & 16/9/06	80	7.5	3.5–15.4	91.3	83–95.7	1.3	0.2–6.8
	WAS
30	Touba Badi	25/10/05	1	100.0	n/c	0.0	n/c	0.0	n/c
31	Wassadou	22&25/10/05	12	33.3	13.8–60.9	66.7	39.1–86.2	0.0	0–24.3
31	Wassadou	7/09/06 & 15/09/06	15	0.0	0–20.4	100.0	79.6–100	0.0	0–20.4
32	Laboya	15/09/06	67	6.0	2.4–14.4	94.0	85.6–97.7	0.0	0–5.4
	KED
33	Silling	14/9/06	56	0.0	0–6.4	100.0	93.6–100	0.0	0–6.4
34	Samecouta	26–27/10/05	13	7.7	1.4–33.3	92.3	66.7–98.6	0.0	0–22.8
34	Samecouta	12–13/9/06	141	5.0	2.4–9.9	94.3	89.2–97.1	0.7	0.1–3.9
35	Laminia	27/10/05	7	14.3	2.6–51.3	71.4	35.9–91.8	14.3	2.6–51.3

Relative frequencies (95% Confidence Intervals, CIs) of M-form, S-form and M/S-hybrids in sampling sites, numbered accordingly to Table 1 and Figures. N = sample size. n/c = not computable. LRA-W = Lower River Area-Western, LRA-S = Lower River Area-South Bank, LRA-N = Lower River Area-North Bank, CRA = Central River Area, URA = Upper River Area, TAM = Tambacounda, WAS = Wassadou, KED = Kedougou.

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