How is MRSA Treated?
Methicillin-resistant Staphylococcus aureus is a common clinically toxic bacterium. Since the advent of penicillin in the 1940s, infectious diseases caused by Staphylococcus aureus have been greatly controlled. However, with the widespread use of penicillin, some Staphylococcus aureus produce penicillinase, which can hydrolyze the -lactam ring, which shows resistance to penicillin. Scientists have developed a new semi-synthetic penicillin that is resistant to penicillinase, methicillin.
Methicillin-resistant Staphylococcus aureus
- Methicillin-resistant Staphylococcus aureus is a common clinically toxic bacterium. Since the advent of penicillin in the 1940s, infectious diseases caused by Staphylococcus aureus have been greatly controlled. But with the widespread use of penicillin, some S. aureus
- Due to the heterogeneous drug resistance of MRSA, it is difficult to detect it. The detection rate of MRSA is affected by various factors such as incubation temperature, time, pH of the culture medium and NaCl concentration, and the amount of bacterial solution. Therefore, there is currently no optimal detection method.
- Paper diffusion method (KB method)
- The thickness of MH agar in the plate was 4 mm, and the bacterial solution was adjusted to 0.5 Maisson's turbidity.
- Treatment of MRSA
- The treatment of MRSA infection is one of the most difficult clinical problems. The key is that it has multiple resistance to many antibiotics. Because its resistance mechanism is a change in the properties of PBPs (penicillin-binding proteins), MRSA
- In 2015, the Guangzhou subway system detected methicillin-resistant Staphylococcus aureus (MRSA). Although infection with super bacteria is more dangerous, don't panic. Normal people do not have to worry about infection if they have no wounds on their hands and wash their hands frequently. Super bacteria pose a greater threat to people with poor immunity. From the perspective of infectious disease prevention and control, subways may be one of the sources of infection for super bacteria and other drug-resistant bacteria. More stringent infection control and monitoring measures should be implemented, such as To strengthen disinfection, passengers should also pay attention to personal hygiene protection. [1]