Background. Routine vaccines may have nonspecific effects on mortality. An observational
study found that OPV given at birth (OPV0) was associated with increased male infant …

Epidemiological observations have shown that vaccines can influence morbidity and
mortality more than can be ascribed to target-disease immunity. A growing number of …

Background. Live vaccines may have nonspecific beneficial effects on morbidity and
mortality. This study examines whether children who had the live-attenuated oral polio …

Background The live vaccines bacille Calmette-Guérin (BCG) and measles vaccine have
beneficial nonspecific effects (NSEs) reducing mortality, more than can be explained by …

Abstract Three studies from Guinea-Bissau found conflicting effects of OPV-at-birth (OPV0)
on child survival. One study from 2004 suggested excess male mortality among children …

Natural experiments are an important methodology often used to answer research questions
that would, otherwise, be impossible to address, or employed because of ethical concerns …

Aim: We investigated the nature and frequency of adverse events following immunization
(AEFI) associated with oral polio vaccines (OPV) in the general population in Kinshasa …

It is evident that human male and female children differ in their outcomes following infectious
challenge and vaccination. This chapter explores some of the evidence for this in children< …

Background Vaccines may have non-specific effects. An observational study from Guinea-
Bissau suggested that oral polio vaccine at birth (OPV0) provided with Bacillus Calmette …

Introdução: Algumas vacinas parecem ter também efeitos para além daqueles nas
doenças para as quais foram desenhadas, denominados de efeitos não específicos …