tetano
Editor, Senior Moderator
Influenza Other Respir Viruses
. 2021 Jul 13.
doi: 10.1111/irv.12885. Online ahead of print.
Defining the seasonality of respiratory syncytial virus around the world: National and subnational surveillance data from 12 countries
Lisa Staadegaard[SUP] 1 [/SUP], Saverio Caini[SUP] 1 [/SUP], Sonam Wangchuk[SUP] 2 [/SUP], Binay Thapa[SUP] 2 [/SUP], Walquiria Aparecida Ferreira de Almeida[SUP] 3 [/SUP], Felipe Cotrim de Carvalho[SUP] 3 [/SUP], Rodrigo A Fasce[SUP] 4 [/SUP], Patricia Bustos[SUP] 5 [/SUP], Jan Kyncl[SUP] 6 7 [/SUP], Ludmila Novakova[SUP] 8 [/SUP], Alfredo Bruno Caicedo[SUP] 9 10 [/SUP], Domenica Joseth de Mora Coloma[SUP] 10 [/SUP], Adam Meijer[SUP] 11 [/SUP], Mariëtte Hooiveld[SUP] 1 [/SUP], Q Sue Huang[SUP] 12 [/SUP], Tim Wood[SUP] 12 [/SUP], Raquel Guiomar[SUP] 13 [/SUP], Ana Paula Rodrigues[SUP] 13 [/SUP], Vernon Jian Ming Lee[SUP] 14 15 [/SUP], Li Wei Ang[SUP] 14 16 [/SUP], Cheryl Cohen[SUP] 17 18 [/SUP], Jocelyn Moyes[SUP] 17 18 [/SUP], Amparo Larrauri[SUP] 19 [/SUP], Concepción Delgado-Sanz[SUP] 19 [/SUP], Clarisse Demont[SUP] 20 [/SUP], Mathieu Bangert[SUP] 20 [/SUP], Michel Dückers[SUP] 1 [/SUP], Jojanneke van Summeren[SUP] 1 [/SUP], John Paget[SUP] 1 [/SUP]
Affiliations
Abstract
Background: Respiratory syncytial virus (RSV) infections are one of the leading causes of lower respiratory tract infections and have a major burden on society. For prevention and control to be deployed effectively, an improved understanding of the seasonality of RSV is necessary.
Objectives: The main objective of this study was to contribute to a better understanding of RSV seasonality by examining the GERi multi-country surveillance dataset.
Methods: RSV seasons were included in the analysis if they contained ≥100 cases. Seasonality was determined using the "average annual percentage" method. Analyses were performed at a subnational level for the United States and Brazil.
Results: We included 601 425 RSV cases from 12 countries. Most temperate countries experienced RSV epidemics in the winter, with a median duration of 10-21 weeks. Not all epidemics fit this pattern in a consistent manner, with some occurring later or in an irregular manner. More variation in timing was observed in (sub)tropical countries, and we found substantial differences in seasonality at a subnational level. No association was found between the timing of the epidemic and the dominant RSV subtype.
Conclusions: Our findings suggest that geographical location or climatic characteristics cannot be used as a definitive predictor for the timing of RSV epidemics and highlight the need for (sub)national data collection and analysis.
Keywords: epidemiology; respiratory syncytial virus; seasonality; surveillance.
. 2021 Jul 13.
doi: 10.1111/irv.12885. Online ahead of print.
Defining the seasonality of respiratory syncytial virus around the world: National and subnational surveillance data from 12 countries
Lisa Staadegaard[SUP] 1 [/SUP], Saverio Caini[SUP] 1 [/SUP], Sonam Wangchuk[SUP] 2 [/SUP], Binay Thapa[SUP] 2 [/SUP], Walquiria Aparecida Ferreira de Almeida[SUP] 3 [/SUP], Felipe Cotrim de Carvalho[SUP] 3 [/SUP], Rodrigo A Fasce[SUP] 4 [/SUP], Patricia Bustos[SUP] 5 [/SUP], Jan Kyncl[SUP] 6 7 [/SUP], Ludmila Novakova[SUP] 8 [/SUP], Alfredo Bruno Caicedo[SUP] 9 10 [/SUP], Domenica Joseth de Mora Coloma[SUP] 10 [/SUP], Adam Meijer[SUP] 11 [/SUP], Mariëtte Hooiveld[SUP] 1 [/SUP], Q Sue Huang[SUP] 12 [/SUP], Tim Wood[SUP] 12 [/SUP], Raquel Guiomar[SUP] 13 [/SUP], Ana Paula Rodrigues[SUP] 13 [/SUP], Vernon Jian Ming Lee[SUP] 14 15 [/SUP], Li Wei Ang[SUP] 14 16 [/SUP], Cheryl Cohen[SUP] 17 18 [/SUP], Jocelyn Moyes[SUP] 17 18 [/SUP], Amparo Larrauri[SUP] 19 [/SUP], Concepción Delgado-Sanz[SUP] 19 [/SUP], Clarisse Demont[SUP] 20 [/SUP], Mathieu Bangert[SUP] 20 [/SUP], Michel Dückers[SUP] 1 [/SUP], Jojanneke van Summeren[SUP] 1 [/SUP], John Paget[SUP] 1 [/SUP]
Affiliations
- PMID: 34255934
- DOI: 10.1111/irv.12885
Abstract
Background: Respiratory syncytial virus (RSV) infections are one of the leading causes of lower respiratory tract infections and have a major burden on society. For prevention and control to be deployed effectively, an improved understanding of the seasonality of RSV is necessary.
Objectives: The main objective of this study was to contribute to a better understanding of RSV seasonality by examining the GERi multi-country surveillance dataset.
Methods: RSV seasons were included in the analysis if they contained ≥100 cases. Seasonality was determined using the "average annual percentage" method. Analyses were performed at a subnational level for the United States and Brazil.
Results: We included 601 425 RSV cases from 12 countries. Most temperate countries experienced RSV epidemics in the winter, with a median duration of 10-21 weeks. Not all epidemics fit this pattern in a consistent manner, with some occurring later or in an irregular manner. More variation in timing was observed in (sub)tropical countries, and we found substantial differences in seasonality at a subnational level. No association was found between the timing of the epidemic and the dominant RSV subtype.
Conclusions: Our findings suggest that geographical location or climatic characteristics cannot be used as a definitive predictor for the timing of RSV epidemics and highlight the need for (sub)national data collection and analysis.
Keywords: epidemiology; respiratory syncytial virus; seasonality; surveillance.