Introduction to the ninth edition of the Manual of clinical microbiology -- Laboratory management -- Laboratory design -- Laboratory consultation, communication, and information systems -- General ...

There are many ways of classifying bacteria. One method is based on the cell membrane. In 1884, a bacteriologist named Christian Gram created a test that could determine if a bacterium had a thick, ...

Gram-positive bacteria show blue or purple after Gram-staining in a laboratory test. They have thick cell walls. Gram-negative bacteria show pink or red on staining and have thin walls. They release ...