A New Medium, Salt Mannitol Plasma Agar, for the Isolation ofStaphylococcus Aureus

Abstract
Salt mannitol plasma agar (SMPA) was equal to mannitol salt agar and other selective and non-selective media in recovering S. aureus from nose and throat cultures. It was superior to other media in ease of colony differentiation and identification. Subtle metabolic differences between strains within a single specimen were often revealed on SMPA, thus providing an additional research tool for examination of population variation.