The synchronized introduction of the inactivated polio vaccine (IPV) and the switch from trivalent oral polio vaccine (tOPV) to bivalent oral polio vaccine (bOPV) has constituted an effort without precedents, and with astonishing results. Within the...

BACKGROUND: Recent outbreaks of measles in the Americas have received news and popular attention, noting the importance of vaccination to population health. To estimate the potential increase in immunization coverage and reduction in days at risk...

Background Replacement of the trivalent oral poliovirus vaccine (tOPV) with bivalent types 1 and 3 oral poliovirus vaccine (bOPV) and global introduction of inactivated poliovirus vaccine (IPV) are major steps in the polio endgame strategy. In this...

The term vaccine hesitancy refers to delay in acceptance or refusal of vaccines despite the availability of vaccination services. Different factors influence vaccine hesitancy and these are context-specific, varying across time and place and with...

Rotavirus disease is the leading cause of childhood morbidity and mortality related to diarrhea in Latin America and the Caribbean (LAC), where an estimated 8,000 deaths related to rotavirus diarrhea occur annually among children aged 1). After two...

With the recent postlicensure identification of an increased risk of intussusception with rotavirus vaccine, the 14 Latin American countries currently using rotavirus vaccine must now weigh the health benefits versus risks to assess whether to...