|
Location
|
Wavea
|
Study population
|
Mean GT/SIb
|
Reproduction number (R)
|
95% CIc
|
Basic or effective
|
Case definition
|
Reference
|
Year published
|
|---|
|
Netherlands
|
2nd
|
Community
|
3
|
1.39
| |
Basic
|
Unconfirmed deaths
|
[38]
|
2010
|
|
United Kingdom
|
2nd
|
Community
|
2.6
|
1.70
| |
Basic
|
Unconfirmed deaths
|
[10]
|
2006
|
|
United Kingdom
|
2nd
|
Community
|
3
|
1.5–1.6
| |
Basic
|
Unconfirmed illness
|
[39]
|
2008
|
|
United Kingdom
|
2nd
|
Community
|
4
|
1.7–1.8
| |
Basic
|
Unconfirmed illness
|
[39]
|
2008
|
|
United Kingdom
|
2nd
|
Community
|
4.1
|
1.50
| |
Effective
|
Unconfirmed illness
|
[25]
|
2006
|
|
United Kingdom
|
2nd
|
Community
|
NR
|
1.65
| |
Basic
|
Serology confirmed infection
|
[26]
|
2005
|
|
USA
|
2nd
|
Community
|
4
|
1.70
| |
Basic
|
Unconfirmed illness
|
[40]
|
2004
|
|
Median reproduction number for the 1957 pandemic: 1.65; Interquartile range 1.53–1.70
|
-
aThe 1957 influenza A/H2N2 pandemic began in February 1957 in southern China and spread to Singapore and Hong Kong in April [1]. The virus was first isolated in the United States in June 1957 and was associated with a mild first wave of illnesses [1, 41]. The peak of the pandemic occurred during the second wave in the Northern Hemisphere in October 1957 and was followed by a third wave in January 1958.
-
bThe generation time (GT) or serial interval (SI) assumed in the reproduction number estimation.
-
cConfidence interval.
- NR = Not reported.
- This table is also available as a .csv file as Additional file 2.
