*Adapted from the National Dysphagia Diet: Standardization for Optimal Care. American Dietetic Association Â© 2002. Level 2 Dysphagia Mechanically Altered*. This diet consists of foods that are moist, soft-textured and easily formed into a bolus. All. foods on Level 1 are allowed. Meats and other select foods may be ground or minced into. small pieces no larger than Â¼â.
Causes. Rheumatic fever can occur after an infection of the throat with a bacterium called Streptococcus pyogenes, or group A streptococcus.Group A streptococcus infections of the throat cause strep throat or, less commonly, scarlet fever.heumatic fever can occur after an infection of the throat with a bacterium called Streptococcus pyogenes, or group A streptococcus.
Streptococcus pyogenes possesses a wide variety of virulence factors and can cause severe invasive infections. Most S. pyogenes express surface-located fibronectin-binding proteins as major invasion molecules.. Group A Streptococcus pyogenes is an important gram-positive bacterial pathogen that causes a wide variety of clinical conditions, ranging from pharyngitis to severe invasive infections and necrotizing fasciitis. The reported lethality of severe S. pyogenes infections is high, ranging from 10%â30% [1] .