title: Occurrence of antigenically distinct rotaviruses in infants in Bulgaria.
mesh_terms: D000956:Antigens, Viral / Q000276:immunology*; D002031:Bulgaria; D003967:Diarrhea / Q000453:epidemiology / Q000382:microbiology*; D004591:Electrophoresis, Polyacrylamide Gel; D004797:Enzyme-Linked Immunosorbent Assay; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D008854:Microscopy, Electron; D012401:Rotavirus / Q000276:immunology* / Q000302:isolation & purification / Q000648:ultrastructure; D012400:Rotavirus Infections / Q000453:epidemiology / Q000382:microbiology*
chemical_list: D000956:Antigens, Viral