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-negative meningitis is a form of meningitis. The term gram-negative refers to a way of differentiating bacteria. This type of bacteria is typically resistant to drugs and most available ...

Why is it important to study bacteria? Pseudomonas aeruginosa is a bacterial strain that can be responsible for several human diseases: the most serious include malignant external otitis, ...

“It’s genuinely surprising that the add-on gives vancomycin any ability at all to hit gram negatives,” says Kim Lewis, an ...

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 ...