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Group A streptococcus (GAS) causes a wide variety of life threatening diseases in humans and the incidence of such infections is high in developing countries like India. Although distribution of emm(More)
Streptococcus pyogenes or group A Streptococcus (GAS) causes ~700 million human infections each year, resulting in over 500,000 deaths. The development of a commercial GAS vaccine is hampered due to(More)
A 6-year-old boy was referred for a firm 3 cm x 2 cm size smooth-surfaced, dome-shaped blue nodule on the scalp for three years. A possibility of pigmented histiocytoma/ dermatofibroma,(More)