Wednesday, March 12, 2014 Strict Poultry Tests Will Control Bird Flu in HK, Says Expert
HONG KONG - A leading respiratory disease expert sees no need to stop importing live chickens from mainland China as long as all the poultry undergoes strict inspection before entering Hong Kong.The Standard H5N1 Bird Flu Reported in Vietnamese Villages
VIET NAM - The Vietnamese veterinary authorities have reported another two outbreaks of highly pathogenic avian influenza, serotype H5N1, in villages located in Ha Giang and Quang Nam.ThePoultrySite News Desk H7N9 Flu Return Driving Poultry Dealers out of Business
CHINA - The handful of poultry dealers lingering at Chengbei Market have had little to do since Chinese authorities shut down their livelihoods after the H7N9 bird flu began stalking the country again, killing scores of people this year.The Star Online Fresh Bird Flu Outbreak Leads to Cull of 50,000 Chickens
SOUTH KOREA - A fresh case of bird flu has been reported at a farm in Gyeongju, North Gyeongsang Province, the Ministry of Agriculture, Food and Rural Affairs confirmed Sunday. This leaves Gangwon and Jeju as the only provinces still free of the virus.The Chosunilbo Human Infection with Avian Influenza A(H7N9) Virus – Update 11 March 2014 (1)
CHINA - On 8 March 2014, the National Health and Family Planning Commission (NHFPC) of China notified WHO of three additional laboratory-confirmed case of human infection with avian influenza A(H7N9) virus.
Details of the cases reported on 8 March are as follows: a 27-year-old man from Fuzhou City, Fujian Province (stable); a 70-year-old man from Meizhou City, Guangdong Province (critical); a 76-year-old woman from Chaozhou City, Guangdong Province (critical).World Health Organisation Human Infection with Avian Influenza A(H7N9) Virus – Update 11 March 2014 (2)
CHINA - On 7 March 2014, the National Health and Family Planning Commission (NHFPC) of China notified WHO of an additional laboratory-confirmed case of human infection with avian influenza A(H7N9) virus.World Health Organization
Details of the case reported on 7 March are as follows: an 88-year-old man from Guangzhou City, Guangdong Province (critical).
Tuesday, March 11, 2014 H7N9 Cases in Guangdong Reach 84 Since March 2013; 370 Cases Across China
CHINA - The number of H7N9 bird influenza patients in Guangdong province since March 2013 has reached 84, among whom 23 have died, according to a renowned medical expert.China Daily H7N9 Bird Flu Virus Found at Three More Chinese Markets
About 80 per cent of the cases were related to poultry markets, with only a few cases related to chicken farms, said Zhong Nanshan, director of the Guangzhou Institute of Respiratory Diseases in Guangdong province.
There were about 370 cases of H7N9 bird flu found nationwide as of Monday since March 2013, when the nation's first such case was reported, and the number is still increasing, Zhong said at a news conference on the sidelines of the annual session of the National People’s Congress.
CHINA - The low-pathogenic bird flu virus H7N9 was found at three poultry markets in Hunan and Guangdong provinces in the third week of February.ThePoultrySite News Desk H5N1 Bird Flu Hits Village Poultry Flock in South Viet Nam
VIET NAM - A 19,000-bird village poultry flock in the south of the country has been hit by H5N1 highly pathogenic avian influenza (HPAI).ThePoultrySite News Desk
Monday, March 10, 2014 Suspected Bird Flu Reported in N Gyeongsang Province
SOUTH KOREA - A case of avian influenza was confirmed at a chicken farm near Gyeongju city, North Gyeongsang Province, over the weekend.The Korea Times Viet Nam Reports Bird Flu Virus Mutation
VIETNAM - Vaccine-resistant mutation of H5N1 bird flu virus strain has been confirmed in the Mekong Delta province of Tra Vinh while vaccinated fowls fell sick in central Viet Nam.ThanhNien News.com Cambodia Reports Two New Bird Flu Cases, One Dies
CAMBODIA - Two more new human cases of avian influenza H5N1 have been confirmed in Cambodia, and one of them, an 11-year-old boy died on Friday in Phnom Penh's Kantha Bopha Children Hospital, a hospital representative has confirmed.Xinhua Online H5N1 Bird Flu Outbreak Reported in Yunnan
CHINA - The Chinese veterinary authorities have reported an outbreak of highly pathogenic avian influenza (HPAI) in Yunnan province in the south of the country at the junction of three villages - Dong, Taijiashan and Wulongtan - involving more than half a million birds.ThePoultrySite News Desk Viet Nam Reports H5N1 Outbreaks in Two Provinces
VIET NAM - The Vietnamese veterinary authorities have reported two outbreaks of highly pathogenic avian influenza (HPAI) in Can Tho and Gia Lai.ThePoultrySite News Desk Global Survey of Avian Flu Viruses Published
GLOBAL - A group of researchers including Damien Joly of Metabiota in Canada examined 11,870 GenBank records to provide a baseline inventory and insight into patterns of global avian influenza virus subtype diversity and richness in wild aquatic birds.PLOS ONE Human Infection with Avian Influenza A(H7N9) Virus – Update 10 March 2014
The study identifies a sampling methodology that will detect an estimated 75 per cent of circulating virus subtypes from a targeted bird population and outlines future surveillance and research priorities that are needed to explore the influence of host and virus biodiversity on emergence and transmission.
CHINA - On 5 and 6 March 2014, the National Health and Family Planning Commission (NHFPC) of China notified WHO of four additional laboratory-confirmed case of human infection with avian influenza A(H7N9) virus.World Health Organization
Details of the cases reported on 5 March are as follows: a 59-year-old man in Wuxi City, Jiangsu Province (critical); a 36-year-old man from Xuzhou City, Jiangsu Province (critical) and a 75-year-old man from Guangzhou City, Guangdong Province (died).
Details of the case reported on 6 March are as follows: a 39-year-old man currently living Foshan City in Guangdong Province (severe condition).
Friday, March 07, 2014 Viet Nam Reports Two New Outbreaks of H5N1 Avian Flu
VIET NAM - Two outbreaks of highly pathogenic avian influenza have hit village poultry flocks in southern Viet Nam this week. ThePoultrySite News Desk Cambodia Sets up Bird Flu Control Zones
CAMBODIA - The agriculture ministry has established two 'H5N1 Contamination Zones’ in a bid to control avian flu in the capital city, Phnom Penh and the province of Kandal.ThePoultrySite News Desk Human Infection with Avian Influenza A(H7N9) Virus – Update 7 March 2014
HONG KONG - On 4 March 2014, the Centre for Health Protection (CHP) of the Department of Health, Hong Kong SAR, China, notified WHO of an additional laboratory-confirmed case of human infection with avian influenza A(H7N9) virus.World Health Organization Poultry Carrying H9N2 Act as Incubators for Novel Human Avian Influenza Viruses
The patient is an 18 month-old girl who developed mild fever. She consulted a doctor on 28 February, was admitted to a hospital on 1 March and was discharged from the hospital on 3 March in stable condition. Following laboratory-confirmation with avian influenza A(H7N9) virus infection on 4 March, the patient was admitted to another hospital. She is currently asymptomatic, with no fever.
Initial epidemiological investigation revealed that the patient travelled to Foshan, Guangdong province from 5 to 27 February, where she visited a wet market with her mother.
CHINA - Di Liu and co-authors explore the relationships between H7N9, H10N8 and H9N2 influenza viruses in poultry, wild birds and humans.The Lancet
(aka bird flu, avian flu) is caused by a type of influenza virus that is hosted by birds, but may infect several species of mammals. It was first identified in Italy in the early 1900s and is now known to exist worldwide. A strain of the H5N1-type of avian influenza virus that emerged in 1997 has been identified as the most likely source of a future influenza pandemic.
Strains of avian influenza virus may infect various types of animals, including birds, pigs, horses, seals, whales and humans. However, wild fowl act as natural asymptomatic carriers, spreading it to more susceptible domestic stocks. Avian influenza virus spreads in the air and in manure and there is no evidence that the virus can survive in well cooked meat.
How to Recognise Avian Influenza
What to look for
- Ruffled feathers
- Soft-shelled eggs
- Depression and droopiness
- Sudden drop in egg production
- Loss of appetite
- Cyanosis (purplish-blue coloring) of wattles and comb
- Edema and swelling of head, eyelids, comb, wattles, and hocks
- Green diarrhoea
- Blood-tinged discharge from nostrils
- Incoordination, including loss of ability to walk and stand
- Pin-point hemorrhages (most easily seen on the feet and shanks)
- Respiratory distress
- Increased death losses in a flock
- Sudden death
- Nasal discharges
For more detail in avian influenza in poultry click here
Poultry Vaccination as a strategy for controlling AI in commercial birds
Outbreaks of avian influenza in the poultry industry cause devastating economic losses and is generally controlled through extensive culling of infected birds. Alternative strategies also use vaccination as a supplementary control measure during avian influenza outbreaks.
Advantages of Vaccination
For more information on poultry vaccination see:
- Vaccination reduces susceptibility to infection.
- A higher dose of virus is necessary to infect the vaccinated birds.
- Vaccinated birds shed less virus.
- Decreased contamination of the environment.
- Decreased risk of human infection
- Used strategically vaccination compliments a stamping out strategy by slowing/stopping the spread of the virus
Avian Influenza (Fowl Plague) is a potentially devastating disease, predominantly of chickens and turkeys, although the virus can also affect game birds (pheasants, partridge and quail), ratites (ostrich and emu), psittacine and passerine birds.
Avian Influenza is caused by an orthomyxovirus, or influenza virus and can survive for considerable lengths of time outside of the host and birds are infected through contact with other birds, mechanical vectors such as vehicles and equipment and personnel travelling between farms, markets and abattoirs.
Precautionary requirements include cleaning and disinfection of premises and the establishment of a Biosecurity barrier to help prevent spread of disease is essential.
For more information on biosecurity see the links below