The respiratory system is responsible for gas exchange in animals-that is, the respiratory system transfers oxygen and carbon dioxide from the air to the circulatory system, and vice versa, across the respiratory surface. Different organisms utilize different methods of respiration.
Vancomycin is a branched tricyclic glycosylated peptide with bactericidal activity against most organisms and bacteriostatic effect on enterococci.
VRE stands for vancomycin-resistant enterococcus. Vancomycin is an antibiotic used to treat infections. Enterococcus is a bacterium normally found in the digestive tract and, in females, in the vagina. Sometimes this germ is able to resist the antibiotic vancomycin. This is called VRE.