References

Study period

Patients no.

Country

Season peak

[1]

2005-2014

161

Saudi Arabia

Summer

[2]

2014-2016

912

Saudi Arabia

No season

[3]

2010-2019

396 879

England

Summer

[4]

2013-2016

1,417

England

Summer

[5]

1988-2018

3924

Pakistan

Summer

[6]

1999-2004

864

Iran

Summer

[7]

2003-2011

75,585

USA

Autumn

[8]

2004-2011

3,95,838

USA

Summer

[9]

1996-2008

1,92,833

Taiwan

Summer

[10]

2001-2005

398

Germany

No season

[11]

2006-2016

1013

Germany

No season