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 …

Abstract Background Between 2002 and 2014, Guinea-Bissau had 17 national campaigns
with oral polio vaccine (OPV) as well as campaigns with vitamin A supplementation (VAS) …

Background A recent WHO review concluded that live BCG and measles vaccine (MV) may
have beneficial non-specific effects (NSEs) reducing mortality from non-targeted diseases …

Background In 1988, the World Health Assembly resolved to eradicate poliomyelitis.
Although substantial progress toward this goal has been made, eradication remains elusive …

Background The immunogenicity of oral poliovirus vaccine (OPV), particularly the type 3
component, is lower in infants in most developing countries than in infants in industrialized …

Background Continued emergence and spread of circulating vaccine-derived type 2
polioviruses and vaccine-associated paralytic poliomyelitis from Sabin oral poliovirus …

Background Polio eradication needs a new routine immunisation schedule—three or four
doses of bivalent type 1 and type 3 oral poliovirus vaccine (bOPV) and one dose of …

Background Novel oral poliovirus vaccine type 2 (nOPV2) was developed by modifying the
Sabin strain to increase genetic stability and reduce risk of seeding new circulating vaccine …

Oral polio vaccine (OPV) and diphtheria–tetanus–pertussis (DTP) vaccines are given
simultaneously in routine immunisation programmes in developing countries. It is therefore …

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