Journal of the American Geriatrics Society · 1993
Epidemic keratoconjunctivitis in a chronic care facility: risk factors and measures for control.
СтатьяПоддержка исследования: вне правительства СШАПоддержка службы здравоохранения СШАНазвание и аннотация: Перевод в очереди
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Buffington J, Chapman L E, Stobierski M G, Hierholzer J C, Gary H E, Guskey L E, Breitenbach R A, Hall W N, Schonberger L B
Аннотация
OBJECTIVE: To study patterns of transmission of epidemic keratoconjunctivitis (EKC) in a chronic care facility and to assess control measures and prevent future outbreaks in this setting.
DESIGN: A retrospective cohort study.
SETTING: A 120-bed, four-unit, skilled nursing facility.
PATIENTS: Residents and employees of the above facility.
INTERVENTIONS: Increased frequency of cleaning; use of bleach disinfectant; universal precautions in handling eye secretions from residents with conjunctivitis; cohorting residents by unit; suspension of new admissions; closure of common gathering areas.
MEASUREMENTS: Resident demographics; possible risk factors for infection among residents (including mobility, underlying illness, medications, involvement in social activity, level of confusion) and among employees (including co-morbid illnesses and eye conditions, exposures to persons with conjunctivitis, visits to eye care specialists, use of contact lenses or glasses); testing of conjunctival specimens from symptomatic persons for viral and bacterial agents.
RESULTS: Of 95 residents on three chronic care units, 47 (attack rate 49%) had onset of eye symptoms consistent with EKC between September 14 and December 7, 1990. Thirty-eight (81%) of these had onset following the onset of symptoms in a resident with dementia who, despite habitual eye-rubbing and wandering into other residents' rooms, was not isolated or restricted in any way. Attack rates were higher (though not statistically significant) among more mobile residents (60% for ambulatory residents) and among those considered by staff to be confused (56%). Rapid antigen detection and culture confirmed adenovirus type 37 as the etiologic agent.
CONCLUSIONS: Transmission of infection with adenovirus type 37 was successfully interrupted following strict infection control, suspension of new admissions, cohorting of residents by unit, and change to a disinfectant that inactivates adenovirus. Recognition of conjunctivitis as an appropriate reason for restricting movement of an infected resident may have prevented extensive viral transmission in this outbreak.
DESIGN: A retrospective cohort study.
SETTING: A 120-bed, four-unit, skilled nursing facility.
PATIENTS: Residents and employees of the above facility.
INTERVENTIONS: Increased frequency of cleaning; use of bleach disinfectant; universal precautions in handling eye secretions from residents with conjunctivitis; cohorting residents by unit; suspension of new admissions; closure of common gathering areas.
MEASUREMENTS: Resident demographics; possible risk factors for infection among residents (including mobility, underlying illness, medications, involvement in social activity, level of confusion) and among employees (including co-morbid illnesses and eye conditions, exposures to persons with conjunctivitis, visits to eye care specialists, use of contact lenses or glasses); testing of conjunctival specimens from symptomatic persons for viral and bacterial agents.
RESULTS: Of 95 residents on three chronic care units, 47 (attack rate 49%) had onset of eye symptoms consistent with EKC between September 14 and December 7, 1990. Thirty-eight (81%) of these had onset following the onset of symptoms in a resident with dementia who, despite habitual eye-rubbing and wandering into other residents' rooms, was not isolated or restricted in any way. Attack rates were higher (though not statistically significant) among more mobile residents (60% for ambulatory residents) and among those considered by staff to be confused (56%). Rapid antigen detection and culture confirmed adenovirus type 37 as the etiologic agent.
CONCLUSIONS: Transmission of infection with adenovirus type 37 was successfully interrupted following strict infection control, suspension of new admissions, cohorting of residents by unit, and change to a disinfectant that inactivates adenovirus. Recognition of conjunctivitis as an appropriate reason for restricting movement of an infected resident may have prevented extensive viral transmission in this outbreak.
Предметные рубрики MeSH
Activities of Daily LivingAdenovirus Infections, HumanAdenoviruses, HumanAgedAged, 80 and overCohort StudiesComorbidityCross InfectionDisease OutbreaksDisinfectionFemaleHumansInfection ControlKeratoconjunctivitisMaleMichiganPatient AdmissionPatient IsolationRetrospective StudiesRisk FactorsSeasonsSerotypingSkilled Nursing FacilitiesUniversal PrecautionsVirus Shedding