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Severe acute respiratory illness surveillance for influenza in Kenya: Patient characteristics and lessons learnt.


ABSTRACT:

Background

We describe the epidemiology and clinical features of Kenyan patients hospitalized with laboratory-confirmed influenza compared with those testing negative and discuss the potential contribution of severe acute respiratory illness (SARI) surveillance in monitoring a broader range of respiratory pathogens.

Methods

We described demographic and clinical characteristics of SARI cases among children (<18 years) and adults, separately. We compared disease severity (clinical features and treatment) of hospitalized influenza positive versus negative cases and explored independent predictors of death among SARI cases using a multivariable logistic regression model.

Results

From January 2014 to December 2018, 11,166 persons were hospitalized with SARI and overall positivity for influenza was ~10%. There were 10,742 (96%) children (<18 years)-median age of 1 year, interquartile range (IQR = 6 months, 2 years). Only 424 (4%) of the SARI cases were adults (≥18 years), with median age of 38 years (IQR 28 years, 52 years). There was no difference in disease severity comparing influenza positive and negative cases among children. Children hospitalized with SARI who had an underlying illness had greater odds of in-hospital death compared with those without (adjusted odds ratio 2.11 95% CI 1.09-4.07). No further analysis was done among adults due to the small sample size.

Conclusion

Kenya's sentinel surveillance for SARI mainly captures data on younger children. Hospital-based platforms designed to monitor influenza viruses and associated disease burden may be adapted and expanded to other respiratory viruses to inform public health interventions. Efforts should be made to capture adults as part of routine respiratory surveillance.

SUBMITTER: Gachari MN 

PROVIDER: S-EPMC9111565 | biostudies-literature | 2022 Jul

REPOSITORIES: biostudies-literature

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Severe acute respiratory illness surveillance for influenza in Kenya: Patient characteristics and lessons learnt.

Gachari Maryanne N MN   Ndegwa Linus L   Emukule Gideon O GO   Kirui Lily L   Kalani Rosalia R   Juma Bonventure B   Mayieka Lilian L   Kinuthia Peter P   Widdowson Marc-Alain MA   Chaves Sandra S SS  

Influenza and other respiratory viruses 20220314 4


<h4>Background</h4>We describe the epidemiology and clinical features of Kenyan patients hospitalized with laboratory-confirmed influenza compared with those testing negative and discuss the potential contribution of severe acute respiratory illness (SARI) surveillance in monitoring a broader range of respiratory pathogens.<h4>Methods</h4>We described demographic and clinical characteristics of SARI cases among children (<18 years) and adults, separately. We compared disease severity (clinical f  ...[more]

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