MRSA: why have we got it and can we do anything about it? 2012

B I Duerden
Department of Medical Microbiology, Cardiff University, Chepstow, UK. bduerden@doctors.org.uk

MRSA, first identified in 1960, became a major cause of healthcare-associated infection with the emergence of epidemic strains EMRSA 15 and 16 in the 1990 s. MRSA bacteraemia surveillance in England showed a peak of 7700 in 2003-2004. A target was set to halve MRSA bacteraemias by 2008 backed by a central improvement programme for infection prevention and control. Healthcare-associated infection is a patient safety issue with joint responsibility between: clinicians responsible for patient care; managers responsible for the organisation of services; and the government/Department of Health responsible for national strategy, prioritisation and performance management, together with introducing a statutory Code of Practice. By 2011, the number of MRSA bacteraemias had reduced by 80% to 1481. The key drivers of improvement were management responsibility, enhanced surveillance, adherence to clinical protocols and care bundles for invasive procedures, hand hygiene and environmental cleaning, and improved isolation procedures and antibiotic stewardship. The target has been translated into an ongoing MRSA objective, and further control of MRSA is supported by a screening programme aimed at all relevant hospital admissions. Sustaining the reduction will depend upon joint responsibility between management maintaining compliance assurance with policies and individual clinicians keeping it as a priority in patient safety.

UI MeSH Term Description Entries
D011159 Population Surveillance Ongoing scrutiny of a population (general population, study population, target population, etc.), generally using methods distinguished by their practicability, uniformity, and frequently their rapidity, rather than by complete accuracy. Surveillance, Population
D002353 Carrier State The condition of harboring an infective organism without manifesting symptoms of infection. The organism must be readily transmissible to another susceptible host. Asymptomatic Carrier State,Asymptomatic Infection Carrier,Inapparent Infection Carrier,Presymptomatic Carrier State,Presymptomatic Infection Carrier,Super-spreader Carrier,Superspreader Carrier,Asymptomatic Carrier States,Asymptomatic Infection Carriers,Carrier State, Asymptomatic,Carrier State, Presymptomatic,Carrier States,Carrier, Super-spreader,Carrier, Superspreader,Carriers, Super-spreader,Carriers, Superspreader,Inapparent Infection Carriers,Infection Carrier, Asymptomatic,Infection Carrier, Inapparent,Infection Carrier, Presymptomatic,Presymptomatic Carrier States,Presymptomatic Infection Carriers,Super spreader Carrier,Super-spreader Carriers,Superspreader Carriers
D003428 Cross Infection Any infection which a patient contracts in a health-care institution. Hospital Infections,Nosocomial Infections,Health Care Associated Infection,Health Care Associated Infections,Healthcare Associated Infections,Infection, Cross,Infections, Hospital,Infections, Nosocomial,Cross Infections,Healthcare Associated Infection,Hospital Infection,Infection, Healthcare Associated,Infection, Hospital,Infection, Nosocomial,Infections, Cross,Infections, Healthcare Associated,Nosocomial Infection
D004739 England A part of Great Britain within the United Kingdom.
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D013203 Staphylococcal Infections Infections with bacteria of the genus STAPHYLOCOCCUS. Infections, Staphylococcal,Staphylococcus aureus Infection,Staphylococcal Infection,Staphylococcus aureus Infections
D016470 Bacteremia The presence of viable bacteria circulating in the blood. Fever, chills, tachycardia, and tachypnea are common acute manifestations of bacteremia. The majority of cases are seen in already hospitalized patients, most of whom have underlying diseases or procedures which render their bloodstreams susceptible to invasion. Bacteremias
D017053 Infection Control Programs of disease surveillance, generally within health care facilities, designed to investigate, prevent, and control the spread of infections and their causative microorganisms. Control, Infection
D055624 Methicillin-Resistant Staphylococcus aureus A strain of Staphylococcus aureus that is non-susceptible to the action of METHICILLIN. The mechanism of resistance usually involves modification of normal or the presence of acquired PENICILLIN BINDING PROTEINS. MRSA,Methicillin Resistant Staphylococcus aureus

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