Respiratory Infections and Pneumonia in Nursing Homes

Respiratory infections are among the most consequential clinical problems in long-term care. According to NCBI Bookshelf, nursing home-acquired pneumonia (NHAP) is the second most common healthcare-associated infection in long-term care, and it is the primary reason residents are transferred from a facility to a hospital. When a loved one develops new confusion, a cough, or breathing changes, families need to understand how these infections behave in older adults, what federal rules govern infection control in the facility, and what to do next. This article explains the clinical picture, the federal framework, and the family action steps, and links to the broader nursing home neglect hub for context on how preventable infections fit inside the federal neglect framework.

How Common Respiratory Infections Are in Nursing Homes

The scale of respiratory infection in long-term care is substantial. NCBI Bookshelf reports that the expected annual incidence of nursing home-acquired pneumonia is projected to reach 1.9 million cases nationally as the elderly population grows. That same source identifies NHAP as the second most common healthcare-associated infection in long-term care and the principal cause of hospital transfers from nursing homes.

Viral respiratory pathogens add another layer. Peer-reviewed literature summarized in PMC reports annual respiratory syncytial virus (RSV) attack rates of 5-10 percent in nursing homes, with pneumonia developing in 10-20 percent of infected residents and mortality of 2-5 percent. The CDC estimates that RSV causes approximately 10,000 all-cause deaths each year in adults older than 64 and accounts for roughly 11 percent of hospital admissions for pneumonia or COPD in older adults. CDC NHSN data also show that during October 2023 through February 2024, between 14.9 and 26.1 percent of nursing homes reported SARS-CoV-2 infections, with COVID-19-associated hospitalization rates of 3.8 to 7.1 per 10,000 residents weekly.

Seasonal variation and viral contributions

Respiratory infection risk is not constant across the calendar. RSV, influenza, and SARS-CoV-2 circulate heavily in fall and winter, overlapping with bacterial pneumonia risk and amplifying the burden on frail residents. The CDC's long-term care respiratory virus toolkit treats these pathogens as interlocking threats that warrant coordinated surveillance, vaccination, and outbreak response.

Types of Respiratory Infections in Long-Term Care

Bacterial pneumonia

NCBI sources report that Streptococcus pneumoniae accounts for approximately 31 percent of NHAP cases, with Staphylococcus species (including MRSA) contributing another 31 percent and Pseudomonas aeruginosa accounting for roughly 7 percent. Peer-reviewed data summarized in PMC describe how severe NHAP shifts toward multidrug-resistant gram-negative bacteria such as Pseudomonas, Acinetobacter, and enteric gram-negative bacilli, mirroring hospital-acquired pneumonia etiology. PMC data also report that multidrug-resistant pathogens appear in NHAP 21.9 percent of the time, compared with 1.4 percent in community-acquired pneumonia.

Viral lower respiratory infections

Peer-reviewed literature in PMC describes RSV in elderly adults as an increasingly recognized severe illness, with case-fatality rates comparable to non-pandemic influenza. Residents with underlying cardiac or pulmonary disease are especially vulnerable to progression to pneumonia, respiratory failure, and acute respiratory distress syndrome. Influenza remains a distinct and significant threat in its own right, covered in greater depth on the influenza page.

Aspiration pneumonia

Aspiration pneumonia is treated as a distinct entity in the nursing home literature. Peer-reviewed sources summarized in PMC link it directly to dysphagia, and report that 55-59 percent of elderly residents with dysphagia experience silent aspiration, meaning that food, liquid, or secretions enter the airway without triggering a protective cough reflex. That silent pattern creates a high-risk reservoir for lower-airway colonization and subsequent pneumonia.

Tuberculosis reactivation

Long-term care facilities remain high-risk settings for tuberculosis reactivation in congregate populations. The CDC and federal regulation at 42 CFR § 483.30 require nursing homes to implement tuberculosis control consistent with American College of Chest Physicians recommendations as part of the physician services requirements.

Risk Factors in Older Adults

NCBI and PMC sources identify a consistent cluster of risk factors for nursing home-acquired pneumonia:

• Dysphagia and silent aspiration (reported in 55-59 percent of dysphagic residents)
• Poor oral hygiene, denture use, and lack of professional dental care
• Frailty, functional dependence, and bedbound status
• Tube feeding and enteral nutrition
• Chronic lung disease, including COPD and bronchiectasis
• Immunosuppression, malnutrition, and comorbid burden
• Prior antibiotic therapy within the preceding 90 days, which predicts resistant pathogens including Pseudomonas aeruginosa

NCBI and peer-reviewed sources also warn that elderly nursing home residents frequently present atypically: rather than classic cough and high fever, they may show new confusion, acute falls, functional decline, and low-grade or absent fever. Because these signs are easy to miss or misattribute, recognition and treatment are often delayed.

Federal Infection Control Standards

The federal infection control requirement for nursing homes is set at 42 CFR § 483.80. The regulation requires facilities to establish and maintain an infection prevention and control program that prevents, identifies, reports, investigates, and controls infections and communicable diseases. CMS cites noncompliance under F-tag 880.

Enforcement data reported in PMC show that more than half of U.S. nursing homes (56 percent) had at least one F-tag 880 citation between 2017 and 2019, with 41 percent receiving one citation and 15 percent receiving two or more. PMC and CMS sources also note that CMS strengthened enforcement of F-tag 880 under QSO-23-10-NH for noncompliance that results in actual harm or immediate jeopardy, and that only 39 percent of infection preventionists had specialized training, with fewer than 3 percent certified.

Vaccination requirements under 42 CFR § 483.80(d)

Subsection 42 CFR § 483.80(d) requires nursing homes to assess and document vaccination status for influenza, pneumococcal disease, COVID-19, and RSV. Facilities must offer CDC-recommended vaccines to residents and track declinations. CDC NHSN data indicate that by February 2024, only 40.5 percent of nursing home residents had received the updated 2023-2024 COVID-19 vaccine, pointing to meaningful protection gaps.

How Facilities Should Prevent Respiratory Infections

Oral care and aspiration prevention

Oral care is one of the most effective-evidenced interventions for reducing nursing home-acquired pneumonia. CDC and peer-reviewed sources report that daily tooth brushing after meals, daily denture cleaning, and weekly professional oral care reduce pneumonia incidence by 40-60 percent, with the HAPPEN project cited as a principal example. Aspiration prevention requires a multidisciplinary approach: elevating the head of the bed to 30-45 degrees, speech-language pathology swallowing assessment and therapy, dietitian-guided diet modification, bedside nursing evaluation, and adequate hydration and nutrition support.

Vaccination for influenza, pneumococcal disease, and COVID-19

CDC and peer-reviewed sources recommend pneumococcal vaccination (PCV20, PCV21, or PCV15 followed by PPSV23) for all adults 65 and older. Even frail long-term care residents mount an antibody response and show reductions in pneumonia and all-cause pneumonia when vaccinated, with timing governed by ACIP recommendations. Influenza and COVID-19 vaccination round out the recommended schedule, and RSV vaccination has been added to CDC guidance for older adults.

Hand hygiene, respiratory etiquette, and stewardship

Hand hygiene, respiratory etiquette, and infection surveillance consistent with CDC NHSN protocols are federal requirements under 42 CFR § 483.80. CDC also emphasizes antibiotic stewardship, including avoiding treatment of asymptomatic bacteriuria and limiting unnecessary broad-spectrum antibiotic use, as a core strategy for reducing the emergence of multidrug-resistant pathogens that drive severe NHAP.

Warning Signs Families Can Recognize

NCBI and peer-reviewed sources stress that respiratory infections in older adults often do not look the way families expect. Classic symptoms are frequently absent or muted, and the first sign of pneumonia may be a sudden cognitive or functional change. Families should watch for:

• New confusion, delirium, or agitation
• Unexplained falls or sudden loss of strength
• New cough, shortness of breath, rapid breathing, or wheezing
• Low-grade fever (or absence of fever despite clear illness)
• Loss of appetite, reduced fluid intake, or new lethargy
• Coughing, choking, or wet-sounding voice during meals (suggesting aspiration)

Consequences of Untreated Respiratory Infections

NCBI and peer-reviewed sources report that NHAP carries 30-day mortality of 13-41 percent among hospitalized residents, with case-fatality rates of 7-19 percent when treated inside the facility. PMC sources add that hospital mortality for NHAP is statistically greater than for community-acquired pneumonia in hospitalized patients (42 percent vs. 18 percent) and that invasive pneumococcal disease carries a case-fatality rate of 30.8 percent in nursing home residents, compared with 16 percent in community-dwelling elderly. Severe NHAP can progress to bacteremia, sepsis, respiratory failure requiring ICU admission, and functional decline even in survivors.

How Outbreaks Are Detected and Managed

Outbreak response in nursing homes follows CDC guidance. State health departments require reporting of confirmed cases, and nosocomial outbreaks trigger enhanced surveillance, cohorting, and isolation protocols aligned with CMS and CDC standards. The CDC's long-term care respiratory virus toolkit covers influenza, RSV, and SARS-CoV-2 together and emphasizes early detection, testing, and containment. The influenza page goes deeper on flu-specific outbreak dynamics.

What Families Should Do

If you are worried that a loved one has a respiratory infection, ask the facility directly for an in-person clinical assessment, including vital signs, oxygen saturation, lung examination, and a clinician call if warranted. Ask whether swallowing has been evaluated, whether aspiration precautions are in place, and whether oral care is being delivered daily. If the facility pattern suggests poor hygiene or failure to manage choking and aspiration risks, document what you see and request a copy of the care plan and the latest nursing notes.

If you believe the facility is failing to meet 42 CFR § 483.80 infection control standards or that a broader pattern of neglect or nursing home abuse is at play, you can file a complaint with your state survey agency and the long-term care ombudsman. State-specific reporting walkthroughs are available in the New York, Massachusetts, and Pennsylvania state complaint guides.

If your loved one has been hospitalized with pneumonia, sepsis, or respiratory failure that you believe is traceable to missed oral care, missed swallow evaluations, skipped vaccinations, or a facility-wide infection control breakdown, you can also speak to a lawyer about a free consultation to review the records.