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Volume 20, Number 4—April 2014

Research

Rotavirus Surveillance in Urban and Rural Areas of Niger, April 2010–March 2012

Anne-Laure PageComments to Author , Viviane Jusot, Abdoul-Aziz Mamaty, Lagare Adamou, Jérôme Kaplon, Pierre Pothier, Ali Djibo, Mahamane L. Manzo, Brahima Toure, Céline Langendorf, Jean-Marc Collard, and Rebecca F. Grais
Author affiliations: Epicentre, Paris, France (A.-L. Page, C. Langendorf, R.F. Grais); Epicentre, Niamey, Niger (V. Jusot, A.-A. Mamaty, B. Toure); Centre de Recherche Médicale et Sanitaire (CERMES), Niamey (L. Adamou, J.-M. Collard); University Hospital of Dijon, Dijon, France (J. Kaplon, P. Pothier); Ministry of Health, Niamey (A. Djibo, M.L. Manzo); Niamey University, Niamey (A. Djibo)

Main Article

Table 5

Weighted analysis of rotavirus genotypes identified during a 2-year surveillance study in Niamey and Maradi region, Niger, April 2010–March 2012

Genotype and G- and P-type April 2010–March 2011
April 2011–March 2012
Niamey, n = 121
Maradi region, n = 194
Niamey, n = 49
Maradi region, n = 85
No. (%) 95% CI No. (%) 95% CI No. (%) 95% CI No. (%) 95% CI
Genotype
G1P[8] 6 (4.8) 2.1–10.5 3 (1.8) 0.6–5.7 1 (1.8) 0.2–12.4 4 (3.8) 1.3–10.6
G2P[4] 30 (25.1) 18.0–33.9 137 (60.5) 51.6–68.8 0 0
G2P[6] 9 (6.2) 3.2–11.6 5 (3.7) 9.0–1.6 0 0 2 (2.7) 0.6–10.3
G6P[6] 12 (9.4) 5.4–16.1 0 1 (1.3) 0.2–9.2 0
G9P[8] 8 (5.9) 2.9–11.6 7 (5.9) 2.8–11.9 0 1 (1.3) 0.2–8.9
G12P[8] 36 (31.4) 23.4–40.5 19 (10.9) 6.6–17.5 43 (89.2) 76.3–95.5 56 (64.1) 52.4–74.4
Others* 15 (13.2) 8.0–21.0 13 (10.0) 5.4–17.8 2 (2.7) 0.6–11.4 9 (12.3) 6.1–23.3
Mixed
5 (4.0)
1.6–9.6

10 (7.1)
3.5–13.7

2 (5.1)
1.2–19.3

13 (15.8)
9.1–26.1
G-type†
G1 10 (8.1) 4.3–14.7 4 (2.7) 1.0–7.1 2 (4.8) 1.1–18.7 4 (3.7) 1.3–10.6
G2 51 (41.9) 33.2–51.1 148 (66.5) 57.5–74.4 0 6 (7.9) 3.5–16.7
G3 3 (2.7) 0.8–8.5 17 (16.0) 10.0–24.7 0 5 (6.0) 2.4–14.3
G6 13 (10.3) 6.0–17.2 1 (0.1) 0.0–1.0 2 (3.0) 0.7–12.3 0
G9 10 (7.2) 3.8–13.1 13 (11.1) 6.4–18.5 1 (2.1) 0.3–14.2 9 (10.0) 5.0–18.7
G12
36 (31.4)
23.4–40.5

20 (11.1)
6.8–17.6

46 (95.2)
85.3–98.5

71 (82.8)
72.3–89.9
P-type†
P[4] 32 (27.0) 19.7–35.9 145 (67.8) 59.1–75.4 0 0
P[6] 27 (20.1) 13.9–28.0 14 (9.7) 5.6–16.2 2 (2.2) 0.5–9.0 13 (17.6) 10.1–28.9
P[8] 63 (53.7) 44.6–62.6 38 (23.6) 16.9–31.9 47 (97.8) 91.0–99.5 72 (83.7) 72.9–90.7

*Including G1P[6] (2), G2P[8] (9), G3P[4] (5), G3P[6] (7), G3P[8] (2), G6P[8] (3), and G12P[6] (7).
†Mixed infections counted in each G- or P-type found, potentially leading to a total number greater than N.

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