The MERSA definition stands for methicillin resistant staphylococcus aureus. This is a bacterium accountable for quite a few dangerous infections in humans. It could also be entitled multidrug resistant staphylococcus aureus or oxacillin-resistant staphylococcus aureus.
It’s basically means any strain of staphylococcus aureus bacteria that has built up resistance to beta-lactam antibiotics. These are penicillins, methicillin, dicloxacillin, nafcillin, oxacillin, etc., and the cephalosporins. MRSA is in particular difficult in hospitals because patients with open wounds, invasive devices and weakened immune systems are at greater risk of infection.
MRSA can be detected by swabbing nostrils of patients and isolating the bacteria found. It may progress significantly within 24 to 48 hours of initial relevant symptoms. After 72 hours it could take hold in human tissues and ultimately become resistant to treatment. The initial presentation of MRSA is small red bumps that may resemble pimples, spider bites, or boils that may go with a fever and at times rashes. After a few days the bumps grow larger, become more painful, & finally open into deep, pus filled boils.