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Volume 17, Number 8—August 2011

Dispatch

Poliomyelitis Outbreak,Pointe-Noire, Republic of the Congo, September 2010–February 2011

Arnaud Le MenachComments to Author , Augusto E. Llosa, Isabelle Mouniaman-Nara, Felix Kouassi, Joseph Ngala, Naomi Boxall, Klaudia Porten, and Rebecca F. Grais
Author affiliations: Author affiliations: Health Protection Agency, London, UK (A. Le Menach, N. Boxall); European Centre for Disease Control and Prevention, Stockholm, Sweden (A. Le Menach); Epicentre, Paris, France (A.E. Llosa, K. Porten, R. F. Grais); Médecins Sans Frontières, Paris (I. Mouniaman-Nara, F. Kouassi); Médecins Sans Frontières, Brazzaville, Republic of the Congo (I. Mouniaman-Nara, F. Kouassi); Ministry of Health, Pointe-Noire, Republic of the Congo (J. Ngala)

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Table 2

Cumulative age-specific AFP rate and vaccination coverage from administrative data and a cross-sectional survey conducted in December 2010, by age group, Mbota, Pointe-Noire, Republic of the Congo*

Age group, y
AFP rate/100,000 persons (95% CI)
Survey vaccination coverage, % (95% CI)
Administrative vaccination coverage, %
5-y average administrative vaccination coverage, %
>29 23.1 (16.9–29.3) 33.3 (29.4–37.3)
25–29 80.5 (59.2–101.8) 52.6 (45.5–59.6)
20–24 151.1 (124.3–177.9) 46.2 (39.3–53.2) 41.7–79.0 67.0
15–19 136.5 (112.4–160.6) 49.3 (42.4–56.2) 47–77† 60.5†
10–14 31.9 (20.7–43.2) 69.0 (62.6–75.5) 21–75† 36.7†
5–9 16.3 (8.1–24.6) 79.3 (73.7–84.7) 38–67 53.1
0–4 44.5 (32.2–56.8) 87.5 (83.6–91.4) 81–112 93.9

*AFP, acute flaccid paralysis; CI, confidence interval.
†Administrative vaccination coverage provided by health authorities at the country level 1986–2000, at the regional level 2001–2006, and at the city level 2007–2009. Vaccination coverage was partially incomplete for 1992–2000 because of civil conflict. Thus, values for 1994, 1998, and 2000 consisted of interpolated values from years for which data are available.

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