Considerable progress has been made towards the achievement of the Millennium Development Goals (MDGs) since 1990. Although advances in improving MDG 4 and MDG 5a (reducing child and maternal mortality, respectively) have been made, progress is some countries have been insufficient. While some...

Bolivia is a lower-middle income country, but one of the poorest in South America, with a per capita GNI of US$ 5,750 in 2013 and an average GNI growth rate of 4.4 percent during the last ten years. Nearly 36 percent of its population of 10.6 million (2013) are aged 0 to 14 years and one third...

In the last years there has been a significant increase in reported cases of pertussis in developed countries, in spite of high rates of childhood immunization. Health institutions have recommended different vaccination strategies to reduce child morbidity and mortality: vaccination of...