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The burden of seasonal respiratory infections on a national telehealth service in England.

The burden of seasonal respiratory infections on a national telehealth service in England.
Author Information (click to view)

Morbey RA, Harcourt S, Pebody R, Zambon M, Hutchison J, Rutter J, Thomas H, Smith GE, Elliot AJ,


Morbey RA, Harcourt S, Pebody R, Zambon M, Hutchison J, Rutter J, Thomas H, Smith GE, Elliot AJ, (click to view)

Morbey RA, Harcourt S, Pebody R, Zambon M, Hutchison J, Rutter J, Thomas H, Smith GE, Elliot AJ,

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Epidemiology and infection 2017 04 17145(9) 1922-1932 doi 10.1017/S095026881700070X
Abstract

Seasonal respiratory illnesses present a major burden on primary care services. We assessed the burden of respiratory illness on a national telehealth system in England and investigated the potential for providing early warning of respiratory infection. We compared weekly laboratory reports for respiratory pathogens with telehealth calls (NHS 111) between week 40 in 2013 and week 29 in 2015. Multiple linear regression was used to identify which pathogens had a significant association with respiratory calls. Children aged <5 and 5-14 years, and adults over 65 years were modelled separately as were time lags of up to 4 weeks between calls and laboratory specimen dates. Associations with respiratory pathogens explained over 83% of the variation in cold/flu, cough and difficulty breathing calls. Based on the first two seasons available, the greatest burden was associated with respiratory syncytial virus (RSV) and influenza, with associations found in all age bands. The most sensitive signal for influenza was calls for 'cold/flu', whilst for RSV it was calls for cough. The best-fitting models showed calls increasing a week before laboratory specimen dates. Daily surveillance of these calls can provide early warning of seasonal rises in influenza and RSV, contributing to the national respiratory surveillance programme.

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