HSS 1100 Lecture Notes - Lecture 6: Urinary Tract Infection, Mycoplasma, Preterm Birth

• School: University of Ottawa
• Department: Health Sciences
• Course: HSS 1100
• Professor: William Yan

Document Summary

It produces a thick layer of wax-like material on the cell wall, which prevents the stains from entering and binding to the cell wall. The wax material protects the bacteria from disinfectants and acids, heat, etc. ; they are therefore hard to kill off. Involves heating up the bacteria to soften the wax before the stain can penetrate the wax layer. Are not gram stainable because there cell wall is different. Methylene blue is used to contrast the carbol fuchsin stain. Look for red bacteria against a blue background to diagnose tuberculosis causes or other mycobacteria. The wax cell wall protects the bacteria from damage, but it also prevents nutrients from getting inside the cell. Considered to be one of the most common bacterial pathogens around the world that causes death. In some countries, there is a slow rise maybe due to more homeless, crowded living conditions because of the economy.