A long-lasting measles epidemic in Maroua, Cameroon 2008-2009: mass vaccination as response to the epidemic.
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D. Cummings | R. Grais | P. Strebel | F. Luquero | F. Fermon | S. Sosler | Heloise Pham-Orsetti | Philippe E Ngaunji | Marcelino Nimpa | Ndong Ngoe