Abstract
Summary
Of the 16 group A streptococcal strains tested, only 9 exhibiting type-specificity and production of hyaluronic acid possessed capacity to induce aerosol infections in mice. Conversely, the remaining 7 strains which lacked either one or the other of these attributes failed to demonstrate infectivity by aerosol challenge. A statistically significant relationship between HA production and mouse infectivity was observed.
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