This tissue gram stain of an acute pneumonia demonstrates grampositive cocci that have been eaten by the numerous PMN's exuded into the alveolar space.
革兰氏染色显示大量渗出到肺泡腔的嗜中性粒细胞吞噬了革兰阳性菌。
2
Such organisms are so named because they don't pick up the purplish dye used in the test to distinguish them from gram-positive bacteria.
这类细菌之所以被如此命名是因为他们和革兰氏阳性菌相比不能吸收淡紫色的染料。
3
In soft tissue and bone infections in warm countries we've known for some time that Gram-negative organisms can be as important or more important than Gram-positive infections.