| http://www.w3.org/ns/prov#value | - Timeliness and the population chosen are crucial elements for reactive campaigns.Keywords: measles, disease outbreaks, viruses, vaccination, Expanded Program on Immunization, Malawi, control, immunization, vaccines, outbreakDuring the prevaccine era, 130 million measles cases occurred annually worldwide, and measles was a leading cause of childhood death (1).
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