title: Index case.
authors.affiliation: Boston University School of Medicine and Boston Medical Center, Boston, USA.
authors.forename: Perri
authors.initials: P
authors.lastname: Klass
mesh_terms: D000293:Adolescent; D000328:Adult; D000900:Anti-Bacterial Agents / Q000627:therapeutic use; D017963:Azithromycin / Q000627:therapeutic use; D001886:Bordetella pertussis / Q000276:immunology; D016358:Contact Tracing; D003371:Cough / Q000209:etiology; D003951:Diagnostic Errors; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D017757:Infectious Disease Transmission, Professional-to-Patient / Q000517:prevention & control; D010567:Pertussis Vaccine / Q000276:immunology; D014917:Whooping Cough / Q000175:diagnosis / Q000188:drug therapy / Q000276:immunology / Q000635:transmission
chemical_list: D000900:Anti-Bacterial Agents; D010567:Pertussis Vaccine; D017963:Azithromycin