In 2016, the global health authorities removed a type of poliovirus from the oral vaccine. The virus caused a growing number of outbreaks and has now arrived in Gaza. In 2016, the global health authorities removed a type of poliovirus from the oral vaccine. The virus caused a growing number of outbreaks and has now arrived in Gaza. your-feed-science, Vaccination and Immunization, Disease Rates, Poliomyelitis, Epidemics, Children and Childhood, Medicine and Health, Paralysis, Viruses, Preventive Medicine, Developing Countries, World Health Organization, Gaza Strip NYT > Science