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.
Some of these antibiotics target bacterial ribosomes and are used in treating respiratory infections, including Legionnaires' disease (tetracycline, erythromycin). Vancomycin attacks bacterial cell walls and deadly organisms such as MRSA (methicillin-resistant Staphylococcus aureus) (multiply drug resistant staph).