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Table 4 The peak period of avian influenza A (H7N9) in humans in 2013–17

From: Spatial and temporal clusters of avian influenza a (H7N9) virus in humans across five epidemics in mainland China: an epidemiological study of laboratory-confirmed cases

year

Number of cases

r

Peak date

Peak period

2013

145

0.840*

19 March

13 February~ 22 April

2014

314

0.779*

6 February

27 December~ 19 March

2015

208

0.743*

11 February

29 December~ 29 March

2016

130

0.554*

26 February

25 December~ 30 April

2017

756

0.700*

27 February

9 January~ 16 April

Total

1553

0.688*

25 February

5 January~ 16 April

  1. “*” showed mean angles were statistically significant, P < 0.05
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BMC Infectious Diseases

ISSN: 1471-2334

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