Mrsa Research Paper

Introduction Staphylococcus aureus (S. aureus) was first discovered in the 1880s and is a dangerous and versatile pathogen that causes many types of severe diseases. Most commonly it causes skin infections, respiratory tract infections, and food poisoning. In the 1940s, when the antibiotic medications such as penicillin was discovered and introduced, it became a primary treatment for S. aureus infections. However, misusing and overusing the use of antibiotics caused the evolution of these bacteria to become resistant to drugs that were designed to combat these infections. Throughout 1950s, S. aureus became resistant to penicillin, so methicillin was introduced to counter the growing populations of penicillin-resistant S. aureus. In 1961, the first strains of S. aureus bacteria became resistant to methicillin and so the methicillin-resistant S. aureus (MRSA) was born. Since methicillin is a form of penicillin, the MRSA are resistant to an entire class of penicillin-like antibiotics called beta-lactams. S. aureus continues to evolve and have shown more resistance to additional antibiotic drugs over time (NIH, 2008).
Identification
S. aureus is a facultative anaerobe bacterium, which can make ATP in both presence and absence of oxygen. It is a gram-positive coccal bacterium that appears in grape-like clusters when viewed through a microscope. S. aureus is beta
There was a high prevalence of nasal carriage of MRSA strains that belong to the MRSA type ST398 in human that was in any contact with pigs. Human infections caused by the LA-MRSA strain ST398 were reported in patients that have had any type of contacts with pigs (Butaye, 2010). LA-MRSA strains are commonly found in food such as chicken, turkey, lamb, and sheep meats. This leads to food poisoning when human ingest food with LA-MRSA strains without any