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PDF files showing the number of polio cases and coverage data in the Americas.
The Americas vs. Measles and Rubella, 2014
Impact of Vaccines
Regional Office for the Americas of the World Health Organization
525 Twenty-third Street, N.W., Washington, D.C. 20037, United States of America
Tel.: +1 (202) 974-3000 Fax: +1 (202) 974-3663