Samuel Ponce-de-Leon

All articles by Samuel Ponce-de-Leon

Challenges in vaccine access and delivery for developing nations

What is the impact of the Pertussis vaccine in the prevention and control of whooping cough? Pertussis is an important death cause among infants worldwide, and continues to constitute a public health problem even in countries with elevated vaccination coverage. In 2008, World Health Organization (WHO) reported 16 million cases out of which 95% corresponded…

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