title: Studies on trachoma. VI. Microbiological observations in a field trial in Saudi Arabia of bivalent rachoma vaccine at three dosage levels.
mesh_terms: D001083:Arabia; D002675:Child, Preschool; D002689:Chlamydia; D002986:Clinical Trials as Topic; D003228:Conjunctiva / Q000382:microbiology; D003235:Conjunctivitis, Inclusion / Q000517:prevention & control; D005455:Fluorescent Antibody Technique; D006801:Humans; D007181:Inclusion Bodies, Viral; D014141:Trachoma / Q000382:microbiology* / Q000517:prevention & control*; D014611:Vaccination; D014765:Viral Vaccines
chemical_list: D014765:Viral Vaccines