title: Difficulties encountered in identification of a nutritionally deficient streptococcus on the basis of its failure to revert to streptococcal morphology.
abstract: Difficulties were encountered in the recognition of a nutritionally deficient streptococcus which continued to display aberrant morphologic forms (especially bulbous swellings and filament formation) despite provision of growth factors. With isolates displaying diverse morphologic entities not characteristic of a given species, e.g., Streptobacillus moniliformis or Erysipelothrix rhusiopathiae, nutritionally deficient streptococci should be considered.
authors.affiliation: Department of Medicine, Mount Sinai Medical Center, New York, New York 10029, USA.
authors.forename: E J
authors.initials: EJ
authors.lastname: Bottone
authors.forename: C A
authors.initials: CA
authors.lastname: Thomas
authors.forename: D
authors.initials: D
authors.lastname: Lindquist
authors.forename: J M
authors.initials: JM
authors.lastname: Janda
mesh_terms: D016470:Bacteremia / Q000175:diagnosis / Q000382:microbiology; D001431:Bacteriological Techniques; D003470:Culture Media; D004697:Endocarditis, Bacterial / Q000175:diagnosis / Q000382:microbiology; D005260:Female; D006801:Humans; D008875:Middle Aged; D008943:Mitral Valve; D013290:Streptococcal Infections / Q000175:diagnosis / Q000382:microbiology; D013291:Streptococcus / Q000254:growth & development / Q000302:isolation & purification* / Q000378:metabolism
chemical_list: D003470:Culture Media