Objective to establish DIGFA to examine HRA absorbed by membrane antigen of a group hemolytic streptococcus and study the value for diagnosis of rheumatic heart disease using this method.

The group a Streptococcus Streptococcus pyogenes causes a wide spectrum of diseases.

The most common bacterial cause of acute pharyngitis is streptococcus pyogenes, or Group a streptococcus, which is referred to as "strep throat."