Abstract
The Vitek MS v2.0 matrix-assisted laser desorption ionization-time of flight mass spectrometry system accurately distinguished Streptococcus pneumoniae from nonpneumococcal S. mitis group species. Only 1 of 116 nonpneumococcal isolates (<1%) was misidentified as S. pneumoniae. None of 95 pneumococcal isolates was misidentified. This method provides a rapid, simple means of discriminating among these challenging organisms.
Publication types
-
Evaluation Study
-
Research Support, Non-U.S. Gov't
MeSH terms
-
Diagnostic Errors / statistics & numerical data*
-
Humans
-
Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization / methods*
-
Streptococcal Infections / diagnosis
-
Streptococcal Infections / microbiology*
-
Streptococcus mitis / chemistry
-
Streptococcus mitis / classification*
-
Streptococcus mitis / isolation & purification*
-
Streptococcus pneumoniae / chemistry
-
Streptococcus pneumoniae / classification*
-
Streptococcus pneumoniae / isolation & purification*