Given the significant increase of pertussis cases in several areas of the Region, the Pan American Health Organization / World Health Organization (PAHO/WHO) encourages Member States to increase their level of surveillance, to continuously monitor the level of vaccination coverage in one year old infants and children under 5 years old, with particular emphasis on identifying susceptible group.

Read the full document: 16 November 2012 Pertussis (Whooping Cough)