title: Field trial of two bivalent trachoma vaccines in children of Punjab Indian villages.
mesh_terms: D000818:Animals; D001428:Bacterial Vaccines; D002499:Centrifugation, Density Gradient; D002675:Child, Preschool; D005007:Ethnology; D000882:Haplorhini; D006801:Humans; D007194:India; D007223:Infant; D051379:Mice; D010919:Placebos; D014141:Trachoma / Q000517:prevention & control*; D014611:Vaccination
chemical_list: D001428:Bacterial Vaccines; D010919:Placebos