Avian Influenza Report
VOLUME 7, NUMBER 4
Reporting period: 16 to 22 January 2011 (Week 4)(Published on 25 January 2011)
Summary
1. The latest case of human avian influenza H5N1 was reported by the World HealthOrganization (WHO) on 20 January 2011 and occurred in Egypt.
2. From 2005 to 2007, about 100 laboratory-confirmed cases of human avian
influenza H5N1 were reported to the WHO annually. In 2008, 2009 and 2010, 44,
73 and 48 cases were confirmed respectively. In 2011 (as of 22 January), 2 humancases of avian influenza A (H5N1) were confirmed.
This week’s update
Confirmed humancases (deaths)
Source: WHO

Reports in wild birds/
poultry
Source: World Organisation for Animal
Health (OIE)

Hong Kong

0 (0)

2

Outside HK
Affectedcountries

1 (0)

3
Hong Kong, Japan, Myanmar & South
Korea
Hong Kong: A Large-billed Crow and an
Oriental Magpie Robin carcasses found in
Tai O and Yuen Long were confirmed to be
H5N1 positive respectively. (21 Jan 2011,OIE)
Japan: Wild birds in Kagoshima andFukushima cities died from avian influenza(H5N1) infection.(19 Jan 2011, OIE)
Myanmar: Poultry in Rakhine State diedfrom avian influenza (H5) infection.(18 Jan2011, OIE)SouthKorea:
Poultryin
Chungcheongnam-Do, Gyeonggi-Do andJeollanam-Do provinces died from avian
influenza (H5N1) infection.(17 Jan 2011,OIE)
71 dead birds confirmed H5N1 positive(Total in 2011: 2 θ)This week(as of Jan 22, 2011)

Cumulative sinceNov. 2003

Details

Egypt

Egypt: A 1-year-old
boy from Alexandria
governorate
wasconfirmed
H5N1
positive. He was in astable condition. He
had
exposuretopoultry. (20 Jan 2011,WHO)

Hong Kong1 (0)Outside HK
Affectedcountries

517 (306)
15 *63#1

θ

For further information, please visit the website of the Agriculture, Fisheries and Conservation Department(AFCD) : http://www.afcd.gov.hk* The 15 affected countries included Azerbaijan, Bangladesh, Cambodia, China (18 provinces/cities including
Anhui, Beijing, Fujian, Guangdong, Guangxi, Guizhou, Hong Kong, Hubei, Hunan, Jiangsu, Jiangxi,Liaoning, Shandong, Shanghai, Shanxi, Sichuan, Xinjiang, and Zhejiang), Djibouti, Egypt, Indonesia, Iraq,Laos, Myanmar, Nigeria, Pakistan, Thailand, Turkey and Vietnam.
#For details of the OIE reported cases in poultry/wild birds, please visit:
http://www.oie.int/eng/info_ev/en_AI_factoids_2.htm

Table 1.

Confirmed human cases of avian influenza A (H5N1) reported to WHO since 2003
by onset date of the cases §§Cases
DeathsCaseFatalityRate2003
44

2004
4632

2005
98
432006115792007
88592008
4433

2009
7332

2010
4824

2011
20Overall
518
306

100%

69.6%

43.9%

68.7%

67.0%

75.0%

43.8%

50.0%

0.0%

59.1%

Further breakdown by countries is available at the government website “Prevention of Avian
Influenza” (http://www.info.gov.hk/info/flu/eng/global.htm)

Table 2.

Countries/areas with confirmed highly pathogenic avian influenza cases in the past
6 months
WHO Region

Date of last reportby WHO / OIECountries

In the past 6months, H5N1
infections wereconfirmed inWestern Pacific2011-01-21
2011-01-19
2011-01-17

China (Hong Kong)
Japan
South Korea

Human, Wild birds
Poultry, Wild birds
Poultry, Wild birds

2010-08-17
2010-07-02

VietnamChina (Tibet)

Human, PoultryWild birds

2011-01-18

Myanmar

Poultry

2011-01-10

Bangladesh

Poultry

2010-12-09

Indonesia&Human, Poultry

2010-12-05

Nepal

PoultrySouth-East Asia

Eastern Mediterranean

2011-01-13

EgyptEurope----Africa

2009-03-03

Nigeria

The Americas----

Human&-&Poultry--&The World Organisation for Animal Health (OIE) has reported that avian influenza H5N1 is endemic inpoultry in these countries.

Table 3.

Confirmed human cases of H5N1 reported to WHO since 2003
Cumulative no. of cases
No. of recent cases(December 2003 to January 2011) (October 2010 to January 2011)
Azerbaijan
80
Bangladesh
10Country2

Cambodia
China
Djibouti
Egypt
Indonesia
Iraq
Laos
MyanmarNigeria
PakistanThailandTurkeyVietnam

10401121
171
32113251211901^09300000000

Overall518

13^ A 59-year-old woman was confirmed to have Influenza A (H5N1) infection in Hong Kong on 17 November
2010. Source: Centre for Health Protection

Table 4.

Details of the recent confirmed human cases of H5N1 reported to WHO (October2010 to January 2011)
Date of reportby WHO
20/01/2011
13/01/201105/01/2011
05/01/2011
05/01/2011
05/01/2011
29/12/2010
29/12/2010
09/12/2010
08/12/2010

Country

District

Province

Sex

Age

Outcome

Egypt
Egypt
Egypt
Egypt
Egypt
Egypt
Egypt
Egypt
Indonesia
Egypt

Damanhour
Esna
Bandung-

Alexandria
Giza
Sharkia
Qena
Ismailia
Dakahlia
El Beheira
Luxor
West Java
Gharbia

M
M
FF
M
M
F
F
F
F

1
1056
2527402811213019/11/2010*

China

Hong Kong-F59

18/10/2010
18/10/2010

Indonesia
Indonesia

West Jakarta
Kota Depok

JakartaWest Java

M
F

3540

Alive
Alive
Alive
Fatal
Alive
Fatal
AliveFatal
Alive
Fatal
Recoveredanddischarged
Fatal
Fatal

* Based on the epidemiological investigation by the Centre for Health Protection, this human case of influenza A (H5)
was classified as an imported sporadic infection.
Avian Influenza Report is a weekly report produced by the Respiratory Disease Office of theCentre for Health Protection when the alert response level under the Government’s Preparedness
Plan for Influenza Pandemic in Hong Kong has been activated. This report aims to highlightimportant international developments on avian influenza preparedness and control and to monitor
global avian influenza activity in humans and birds.
σSources: World Health Organization (WHO); World Organisation for Animal Health (OIE)

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