title: Reply to Llor and Butler.
authors: Infectious Diseases Society of America, Arlington, Virginia.
authors: Audrey F
authors: AF
authors: Jackson
authors: Angela M
authors: AM
authors: Caliendo
mesh_terms: D003141:Communicable Diseases / Q000175:diagnosis*; D006801:Humans; D008828:Microbiological Techniques / Q000379:methods* / Q000592:standards*; D025202:Molecular Diagnostic Techniques / Q000379:methods* / Q000592:standards*