Seasonal shift in epidemics of respiratory syncytial virus infection in Japan

In Japan, respiratory syncytial virus (RSV) infection generally has occurred during autumn and winter. However, a possible change in the seasonal trend of RSV infection has been observed recently. The current study was conducted to determine whether the epidemic season of RSV infection in Japan has...

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Bibliographic Details
Published inEpidemiology and infection Vol. 149; p. e55
Main Authors Miyama, Takeshi, Iritani, Nobuhiro, Nishio, Takayuki, Ukai, Tomohiko, Satsuki, Yuka, Miyata, Hiromi, Shintani, Ayumi, Hiroi, Satoshi, Motomura, Kazushi, Kobayashi, Kazuo
Format Journal Article
LanguageEnglish
Published Cambridge, UK Cambridge University Press 11.02.2021
Subjects
Antigens
Autumn
Epidemics
Epidemics - statistics & numerical data
Epidemiology
Humans
Humidity
Infections
Infectious diseases
Japan - epidemiology
Monoclonal antibodies
Pediatrics
Prevention
Public health
Regression analysis
Regression models
Respiratory syncytial virus
Respiratory Syncytial Virus Infections - epidemiology
Respiratory Syncytial Virus Infections - virology
Respiratory Syncytial Virus, Human
Seasonal variations
Seasons
Short Paper
Time Factors
Viruses
Winter
Japan
Epidemics
seasonal shift
respiratory syncytial virus infections
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Summary:In Japan, respiratory syncytial virus (RSV) infection generally has occurred during autumn and winter. However, a possible change in the seasonal trend of RSV infection has been observed recently. The current study was conducted to determine whether the epidemic season of RSV infection in Japan has indeed changed significantly. We used expectation-based Poisson scan statistics to detect periods with high weekly reported RSV cases (epidemic cluster), and the epidemic clusters were detected between September and December in the 2012–2016 seasons while those were detected between July and October in the 2017–2019 seasons. Non-linear and linear ordinary least squares regression models were built to evaluate whether there is a difference in year trend in the epidemic seasonality, and the epidemic season was shifted to earlier in the year in 2017–2019 compared to that in 2012–2016. Although the reason for the shift is unclear, this information may help in clinical practice and public health.
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ISSN:0950-2688
1469-4409
1469-4409
DOI:10.1017/S0950268821000340