Causes of infection in long-term care facilities: An overview
- Michael J Richards, MD, FRACP
Michael J Richards, MD, FRACP
- The Royal Melbourne Hospital
- Victoria, Australia
- Rhonda L Stuart, MBBS, FRACP, PhD
Rhonda L Stuart, MBBS, FRACP, PhD
- Infectious Diseases Physician, Medical Director Infection Control
- Monash Health
Long-term care facilities (LTCFs) provide a unique environment for facilitating transmission of infection between residents [1-4]. Types of infections and important pathogens in LTCFs will be reviewed here.
Infection control strategies in LTCFs are discussed separately. (See "Principles of infection control in long-term care facilities".)
TYPES OF INFECTIONS
Important types of infection in long-term care facilities (LTCFs) include respiratory tract infection, gastrointestinal infection, urinary tract infection, and skin and soft tissue infection . Together, these infections represent 94 percent of infections seen in LTCFs [2,3,6,7].
Respiratory tract infection
Pneumonia — Mortality due to pneumonia is higher among residents of LTCFs than adults in the community. In addition, an episode of pneumonia in a LTCF resident is associated with increased mortality that persists for up to two years . Predisposing factors include underlying obstructive pulmonary disease, left heart failure, and risk of aspiration [9,10]. Aspiration pneumonia is common in the presence of risk factors including stroke, neuromuscular disorders, or impaired consciousness.
Pneumonia in LTCFs may be caused by pathogens associated with community-acquired pneumonia or hospital-acquired pneumonia. The microbiology depends on whether residents have recently been in an acute care facility and their length of stay in the LTCF. Streptococcus pneumoniae is the most common pathogen [11,12]. Atypical pathogens such as Mycoplasma pneumoniae are less common in LTCFs than the general community.
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- TYPES OF INFECTIONS
- Respiratory tract infection
- - Pneumonia
- - Influenza
- - Tuberculosis
- Urinary tract infection
- Diarrheal disease
- Skin and soft tissue infection
- - Pressure ulcers
- - Scabies
- - Tinea infection
- Group A streptococcal infection
- Bloodborne and sexually transmitted pathogens
- ANTIMICROBIAL-RESISTANT ORGANISMS
- Methicillin-resistant S. aureus
- Vancomycin-resistant Enterococcus
- Drug-resistant gram-negative organisms