答：MRSA是医院感染的主要病原菌之一，亦称HA-MRSA（healthcare associated MRSA），但目前医院中的MRSA正在向社区蔓延。 早在1982年国外已有社区发生MRSA感染暴发流行的报道，但通常被认为系由1株医院获得MRSA（HA-MRSA）在社区播散所致。

2022年11月8日 · When it occurs in these settings, it's known as health care-associated MRSA (HA-MRSA). health care-associated methicillin-resistant Staphylococcus aureus (HA-MRSA) infections usually are associated with invasive procedures or devices, such as surgeries, intravenous tubing or artificial joints.

By comparing and understanding the resistance factors and toxins expressed by HA-MRSA and CA-MRSA, physicians and healthcare workers can improve MRSA incidence and recurrence rates by appreciating each strand's mechanism of infectivity and avoiding the root causes of resistance, ultimately leading to successful and cost-effective treatment.

2023年4月2日 · MRSA infection is one of the leading causes of hospital-acquired infections and is commonly associated with significant morbidity, mortality, length of stay, and cost burden. MRSA infections can be further divided into hospital-associated (HA-MRSA) infections and community-associated (CA-MRSA) infections.

MRSA (methicillin-resistant Staphylococcus aureus) is a type of bacteria that many antibiotics don’t work on. MRSA most often causes skin infections, but it can also cause serious illnesses that are hard to treat. MRSA skin infections might look like a rash or an area that’s red, discolored, painful, swollen, or filled with pus or fluid.

Recent examples of emergent MRSA strains include the health-care-associated MRSA (HA-MRSA) clonal complex 30 (CC30) in North America and Europe, community-associated MRSA (CA-MRSA) USA300 in North America and livestock-associated MRSA (including ST398) and ST93 in Australia 6–9.

2022年10月20日 · HA-MRSA is a type of Methicillin-resistant Staphylococcus aureus infection. Much of transmission, signs and symptoms of infection, duration of illness, complications and diagnosis are the same as for Staphylococcus aureu s.

2022年11月8日 · 当感染出现在这些机构时，被称为医疗护理相关的 mrsa（ha-mrsa）。 HA-MRSA 感染通常与侵入性医疗程序或设备有关，如手术、静脉输液管或人工关节。 医护人员与手不干净的人或接触不干净表面的人接触后，可能传播 HA-MRSA。

In the past three decades, the percentage of MRSA infections has significantly risen, and new strain of MRSA known as healthcare-associated (HA-MRSA) has spread and become endemic throughout industrialized nations as the leading cause of life-threatening infections like pneumonia, skin and bloodstream infections (Diekema and Pfaller, 2001).

HA-MRSA和CA-MRSA的主要区别是什么？ 答：主要表现在以下5个方面：①SCC mec 分型显示，CA-MRSA主要为SCC mec Ⅳ～Ⅵ型；而HA-MRSA主要为SCC mec Ⅰ～Ⅲ型；②药敏试验结果显示，因CA-MRSA主要携带β-内酰胺类的耐药基因，缺乏其他的耐药基因，故通常仅对β-内酰胺类抗生素类和大环内酯类耐药，而对多种非β-内酰胺类抗生素敏感；而HA-MRSA除携带β-内酰胺类的耐药基因还携带有其他多种耐药基因，故对临床常用的抗菌药物大多耐药；③CA-MRSA高 …