Two Genes Linked to Deadly Form of Bacterial Infection

Tissue staining shows group A Streptococcus soft tissue infection at the cellular level. (L-R) Uninfected mouse tissue and mouse tissue 48 hours after infection. The dense dots indicate immune system cells that swarmed in to attempt to control the infection. The densest purple staining toward the bottom is necrotic tissue surrounding bacteria. / Credit: Joshua Leiberman, University of Maryland Baltimore

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