routine immunization
National Institutes of Health
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The incidence of poliomyelitis due to wild poliovirus (WPV) has decreased worldwide by 99% since the 1988 resolution of the World…
BACKGROUND
Measles is a communicable viral disease which is a major public health problem and a leading cause of morbidity and…
Karachi is the only mega city in the world with persistent poliovirus transmission. We determined routine childhood immunization…