A small puncture wound on a womanʹs arm has become swollen, hot to the touch, and intensely painful. There is tissue necrosis but it is not ʺgassy,ʺ and under the microscope Gram -positive cocci in chains are present. Which of the following microbes is likely to be responsible?

Question

Quizplus · Accepted Answer

Streptococcus pyogenes is a Gram-positive cocci in chains and can cause necrotizing fasciitis, which matches the symptoms described.

A Small Puncture Wound on a Womanʹs Arm Has Become