A massive decline in cases of poliomyelitis was observed worldwide since 1988; however its transmission continues in Pakistan and Afghanistan. In 2017, a total of 17 cases were reported from these countries, which represent approximately half of the cases reported in 2016. This achievement was made possible by large scale use of oral polio vaccine (OPV) and inactivated polio vaccine (IPV). Despite vigorous efforts to end poliovirus transmission in endemic areas, several challenges including illiteracy, poverty, malnutrition, difficulty to access health and immunization services adversely affect the effectiveness of the polio eradication efforts. Innovations are thus needed to accomplish the goal of eradication as due to limited funding, the sustainability of a program becomes questionable. The aim of this study is to assess the effectiveness of lactoferrin in increasing mucosal and serum immunity in children following administration of poliovirus vaccines.
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Assessment of humoral immunity by seroconversion
Timeframe: 10 weeks