title: Poliomyelitis vaccination in tropical countries.
mesh_terms: D000349:Africa; D001208:Asia; D001315:Australia; D002648:Child; D002675:Child, Preschool; D003906:Developing Countries; D005060:Europe; D006801:Humans; D007223:Infant; D009520:New Zealand; D009656:North America; D011051:Poliomyelitis / Q000453:epidemiology / Q000517:prevention & control*; D011054:Poliovirus Vaccine, Inactivated / Q000627:therapeutic use*; D013020:South America; D014329:Tropical Climate; D014611:Vaccination
chemical_list: D011054:Poliovirus Vaccine, Inactivated