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Войти в исследования International journal of infectious diseases : IJID : official publication of the International Society for Infectious Diseases · 2026
Shifts in unidentified-pathogen acute hematogenous osteomyelitis incidence after nonpharmaceutical interventions highlight the role of seasonal viruses: An interrupted time-series analysis.
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Leao Virginia, Assad Zein, Valtuille Zaba, Ouldali Naïm, Kaguelidou Florentia, Aupiais Camille, Basmaci Romain
Аннотация
OBJECTIVES: To analyse the temporal association of COVID-19-related nonpharmaceutical interventions (NPIs) with the incidence of unidentified-pathogen acute hematogenous osteomyelitis (UP-AHO) in children aged 1-5 years, and to assess the contribution of seasonal viral circulation.
METHODS: We conducted an interrupted time-series analysis from 2015 to 2023. Monthly UP-AHO incidence per 100,000 children was analyzed using a quasi-Poisson regression model, considering seasonal viruses and their attributable fraction.
RESULTS: Overall, 5619 children were hospitalized for UP-AHO (median age: 2 years [IQR: 1-3]). The incidence of UP-AHO decreased following NPI implementation in March 2020 (immediate change, -57.6%; 95% confidence interval [CI], -72.2 to -42.5; P < 0.0001), then increased following school reopening in September 2020 (immediate change, 101.0%; 95% CI, 69.1-133.0; P < 0.0001). Population-level analyses showed that human rhinovirus accounted for 21.3% (95% CI, 5.8-36.8; P < 0.01) of the incidence of UP-AHO, and varicella-zoster virus for 9.8% (95% CI, 1.2-18.3; P = 0.03). Other viruses were not significantly associated.
CONCLUSION: UP-AHO incidence was modified by NPIs and school reopening, reflecting shifts in seasonal viral circulation. Rhinovirus emerged as a driver of incidence shifts, in a context where Kingella kingae is a leading cause in children aged 1-5 years.
METHODS: We conducted an interrupted time-series analysis from 2015 to 2023. Monthly UP-AHO incidence per 100,000 children was analyzed using a quasi-Poisson regression model, considering seasonal viruses and their attributable fraction.
RESULTS: Overall, 5619 children were hospitalized for UP-AHO (median age: 2 years [IQR: 1-3]). The incidence of UP-AHO decreased following NPI implementation in March 2020 (immediate change, -57.6%; 95% confidence interval [CI], -72.2 to -42.5; P < 0.0001), then increased following school reopening in September 2020 (immediate change, 101.0%; 95% CI, 69.1-133.0; P < 0.0001). Population-level analyses showed that human rhinovirus accounted for 21.3% (95% CI, 5.8-36.8; P < 0.01) of the incidence of UP-AHO, and varicella-zoster virus for 9.8% (95% CI, 1.2-18.3; P = 0.03). Other viruses were not significantly associated.
CONCLUSION: UP-AHO incidence was modified by NPIs and school reopening, reflecting shifts in seasonal viral circulation. Rhinovirus emerged as a driver of incidence shifts, in a context where Kingella kingae is a leading cause in children aged 1-5 years.