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They are found almost indiscriminately in any of these wound infections, and none of them appears to have any definite relation to any special form of disease unless it be the micrococcus of erysipelas. The common pus micrococci are grouped under three species, Staphylococcus pyogenes aureus, Staphylococcus pyogenes, and Streptococcus pyogenes.
Sometimes he called David in, and talked at length and with enthusiasm about such human interest things as the Staphylococcus pyogenes aureus, and the Friedlander bacillus. The older man would listen, but his eyes were oftener on Dick than on the microscope or the slide. David went to the bookcase and got down a large book, much worn, and carried it to his desk.
Among those he labelled were the Staphylococcus pyogenes albus, the Micrococcus fervidosus, the Saccharomyces rosaceus, and the Bacillus buccalis fortuitis. I made a note of the names at the time, because of the dread with which they inspired me. But I searched the collection in vain for the real bacillus of the slum.
Now, if you can think of any possible chink through which a wandering streptococcus can, by any possibility, sneak into that wound, please suggest it, and it shall be closed immediately! The intruders against whom all these preparations are made are two in number: Streptococcus pyogenes and Staphylococcus pyogenes cousins, as you see, by their names.
This may be a wound or a purulent blister, and the streptococcus pyogenes is the organism most frequently present. Septic lymphangitis is commonly met with in those who, from the nature of their occupation, handle infective material. A gonococcal form has been observed in those suffering from gonorrhœa.
Toxins are thus introduced into the blood, not only at the primary seat of infection, but also from each of these metastatic collections. Like septicæmia, this condition is due to pyogenic bacteria, the streptococcus pyogenes being the commonest organism found.
Cellulitis is an acute affection resulting from the introduction of some organism commonly the streptococcus pyogenes into the cellular connective tissue of the integument, intermuscular septa, tendon sheaths, or other structures.
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