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Table 4 Periods of high influenza activity, 2010–2018

From: Seasonal influenza vaccination in Kenya: an economic evaluation using dynamic transmission modelling

Year

NH season

Subtype

Vaccine match

SH season

Subtype

Vaccine match

Jan 2010–Aug 2010

   

03/2010–12/2010

A(H3N2)

M

2010–2011

12/2010–08/2011

B

M

08/2011–03/2012

B

M

2011–2012

12/2011–05/2012

A(H3N2)

U

   

2012–2013

   

05/2013–12/2013

B

M

2013–2014

12/2013–09/2014

A(H1N1)pdm09

M

   

2014–2015

      

2015–2016

11/2015–05/2016

B

M

03/2016–11/2016

A(H3N2)

U

2016–2017

      

2017–2018

09/2017–06/2018

B

U

06/2018–12/2018

A(H3N2)*

U

 

01/2018–10/2018

A(H1N1)pdm09

M

   
  1. An influenza year begins in September and ends in August the following year. “M” means the vaccine was well matched to circulating strains (VE = 70%) [16]. “U” means vaccine was poorly matched to circulating strains (VE = 42%) [16]. Blank cells indicate no detectable peak in influenza activity. *There were no SH VE estimates available at the time, and we used VE values for the NH vaccine