

urinary tract infections (UTIs), an infection of the bladder, urethra, or kidneys.toxic shock syndrome, a rare and life threatening condition that happens when bacteria release harmful toxins.meningitis, inflammation of the lining that surrounds the brain and spinal cord.gastroenteritis, inflammation of the gastrointestinal tract that can cause vomiting and diarrhea.pulmonary infections: such as pneumonia.prosthetic device infections, a complication that can happen after joint replacement surgeries.septic arthritis, a type of join infection.osteomyelitis, an infection that causes pain in the legs.
#Gram positive vs gram negative cluster skin

Cell wall: They have a thick peptidoglycan cell wall.Membranes: Gram-positive bacteria do not have a protective outer membrane.Gram-positive bacteria have the following characteristics: This is due to their high resistance to antibiotics.īelow are the specific characteristics of Gram-positive and Gram-negative bacteria. Gram-negative bacteria are among the most significant public health problems in the world. Instead, they appear red or pink in color. This means they do not hold the blue dye used in Gram testing and do not appear blue. However, they have a thinner peptidoglycan cell wall. Gram-negative bacteria have an outer membrane. Gram-positive bacteria can be cocci- (spheres) or bacilli- (rod) shaped, or have branching filaments. This means that they retain the dye in gram testing, causing them to have a blue color when a person views them under a microscope.

Gram-positiveĪ 2022 article notes that Gram-positive bacteria have a thick peptidoglycan cell wall. It involves staining an organism with crystal violet or methylene blue dye and then observing the organism under a microscope.

The term “Gram” refers to a specimen staining method developed by Hans Christian Gram in 1884. One method that scientists use to classify bacteria is Gram staining, which is the most commonly performed laboratory procedure in microbiology. Gram-positive and Gram-negative bacteria are two different types of bacteria.
