A small puncture wound on a woman's arm has become swollen, hot to the touch, and intensely painful. There is tissue necrosis but it is not "gassy," 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 known for causing infections that present with symptoms such as swelling, heat, intense pain, and tissue necrosis. The description of Gram-positive cocci in chains is characteristic of Streptococcus species, making Streptococcus pyogenes the most likely culprit.

A Small Puncture Wound on a Woman's Arm Has Become