Respiratory syncytial virus acute respiratory infections in ≥ 65-year-old adults in long-term care facilities in the Czech Republic.

Autor: Beran J; Vaccination and Travel Medicine Centre, Hradec Kralove, Czech Republic., Ramirez Villaescusa A; GSK, Wavre, Belgium., Devadiga R; GSK, Bangalore, India., Nguyen TL; GSK, Wavre, Belgium., Gruselle O; GSK, Rixensart, Belgium., Pirçon JY; GSK, Wavre, Belgium., Struyf F; GSK, Wavre, Belgium., Devaster JM; GSK, Rixensart, Belgium.
Jazyk: angličtina
Zdroj: Central European journal of public health [Cent Eur J Public Health] 2021 Sep; Vol. 29 (3), pp. 167-176.
DOI: 10.21101/cejph.a6861
Abstrakt: Objectives: Due to immunosenescence and presence of comorbidities, respiratory syncytial virus (RSV) disease burden is a major health concern in older adults, which is expected to increase with the life expectancy rise. Data on RSV burden are scarce in older adults residing in long-term care facilities, a vulnerable population living in crowded settings. Therefore, two independent prospective studies were conducted during the 2003-2004 and 2004-2005 RSV seasons to assess RSV acute respiratory illnesses (ARIs) and lower respiratory tract infections (LRTIs) in ≥ 65-year-old adults residing in long-term care facilities in the Czech Republic.
Methods: RSV ARI episodes were confirmed by polymerase chain reaction in nasal swabs collected within 3 days of symptoms onset. The mortality and morbidity of RSV-confirmed ARIs, as well as the risk factors associated with RSV-confirmed ARIs were evaluated.
Results: Among 1,251 participants in the 2003-2004 season (ARI surveillance between October and March), there were no RSV-positive cases in 255 ARI and 105 LRTI episodes. Among 1,280 participants in the 2004-2005 season (ARI surveillance between October and April), there were 39 and 26 RSV-positive cases in 335 ARI and 217 LRTI episodes, respectively, and RSV-positive ARI and LRTI episode incidence rates were 45.82 and 30.40 per 1,000 person-years. Among 290 RSV-negative and 39 RSV-positive ARI cases in the 2004-2005 season, 15 and 4 hospitalizations, 188 and 26 LRTIs, and 11 and 3 deaths were reported. Risk factors associated with RSV-positive ARI were female gender (odds ratio: 4.98), chronic heart failure class II (odds ratio: 2.31) and diabetes requiring insulin treatment (odds ratio: 9.82).
Conclusions: These studies showed that RSV was an important cause of ARI in older adults living in long-term care facilities in the 2004-2005 season, with fluctuating yearly incidences.
Databáze: MEDLINE
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