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Volume 27, Number 5—May 2021
Research Letter

Temporal Variations in Respiratory Syncytial Virus Epidemics, by Virus Subtype, 4 Countries

Lisa StaadegaardComments to Author , Adam Meijer, Ana Paula Rodrigues, Sue Huang, Cheryl Cohen, Clarisse Demont, Jojanneke van Summeren, Saverio Caini, and John Paget
Author affiliations: Netherlands Institute for Health Services Research (Nivel), Utrecht, the Netherlands (L. Staadegaard, J. van Summeren, S. Caini, J. Paget); National Institute for Public Health and the Environment (RIVM), Bilthoven, the Netherlands (A. Meijer); Instituto Nacional de Saúde Doutor Ricardo Jorge, Lisbon, Portugal (A.P. Rodrigues); Institute of Environmental Science and Research Limited, Upper Hutt, New Zealand (S. Huang); National Institute for Communicable Diseases, Johannesburg, South Africa (C. Cohen); University of Witwatersrand, Johannesburg (C. Cohen); Sanofi Pasteur, Lyon, France (C. Demont)

Main Article

Table

Summary of seasonal metrics of respiratory syncytial virus epidemics, defined by 10% positivity threshold, by season and country*

Location, season
 Start, calendar wk
 End, calendar wk
 Duration, wk
 Peak, calendar wk
 No. cases
 No. subtyped cases
 Subtype A, %
 Dominant subtype
Northern Hemisphere
The Netherlands
2009–10 49 8 12 3 100 100 44 B
2010–11 4 7 4 6 82 82 68 A
2011–12 51 4 6 51 53 53 36 B
2012–13 51 5 7 2 60 60 75 A
2013–14 3 8 6 4 72 72 44 B
2014–15 6 13 8 9 73 73 37 B
2015–16 51 5 7 2 110 110 35 B
2016–17 47 2 8 51 123 123 70 A
2017–18 47 52 7 51 75 75 17 B
Average 52 6 7 3 83 83 47 B
Portugal
2012–13 50 1 4 50 94 80 78 A
2013–14 52 3 4 52 298 103 70 A
2014–15 44 18 27 51 412 38 13 B
2015–16 47 13 19 51 646 99 63 A
2016–17 45 12 20 4 682 91 55 A
2017–18 44 15 24 5 1,084 142 51 A
2018–19 44 18 27 10 1,662 101 27 B
Average
 47
 11
 18
 2
 697
 93
 51
 A
Southern Hemisphere
New Zealand
2012 18 37 20 26 880 152 85 A
2013 15 32 18 27 1,238 367 21 B
2014 24 34 11 27 1,406 409 65 A
2015 13 32 20 24 1,430 295 58 A
2016 12 32 21 26 1,020 185 66 A
Average 16 33 18 26 1,195 282 52 A
South Africa
2016 8 28 21 17 750 675 59 A
2017 7 30 24 16 848 825 33 B
2018 6 26 21 15 922 879 60 A
Average 7 28 22 16 840 793 51 A

Main Article

Page created: March 09, 2021
Page updated: April 22, 2021
Page reviewed: April 22, 2021
The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.
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