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 Korea's Premier Poultry Research Centre Decimated by Avian Flu
SOUTH KOREA - A new, deadly H5N8 strain of avian influenza penetrated the biosecurity defences of a National Institute of Animal Science (NIAS) campus, prompting authorities to cull all of the facility's 11,000 hens and 5,000 ducks.Science Northern Vietnamese H5N1 Bird Flu Virus Found in South
The devastating loss could set back poultry experiments at the NIAS lab for two years.
The H5N8 strain had never before been seen in such a deadly form when it surfaced on farms in central South Korea on 17 January.
VIET NAM - The strain of the H5N1 highly pathogenic avian influenza virus from the north of the country has been found for the first time in the Mekong Delta region in the south.ThePoultrySite News Desk
Thursday, March 06, 2014 Institutions Told to Restructure Bird Flu Affected Loans
NEPAL - Poultry farmers struggling to repay loans in the aftermath of the bird flu epidemic can heave a sigh of relief as financial institutions have been asked to restructure the affected poultry loans.The Himalayan Hong Kong Reports Sixth H7N9 Bird Flu Case
HONG KONG - Hong Kong confirmed on Tuesday a new human case of the deadly H7N9 avian flu found in an 18-month-old girl, the sixth case to be discovered in the city. The Manila Times Human Infection with Avian Influenza A(H7N9) Virus – Update 5 March
CHINA - On 4 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
The patient is a 59 year-old man from Zhuhai City, Guangdong Province. He became ill on 26 February, was admitted to a hospital on 1 March and died on 2 March. The patient has a history of exposure to live poultry.
Wednesday, March 05, 2014 Hong Kong Bans Import of Poultry Products from Dutch City
HONG KONG - The import of poultry and poultry products from Dronten of the Netherlands to Hong Kong has been banned under the threats of avian influenza, Hong Kong's Center for Food Safety announced on 3 March.Global Times
The move was taken in view of a notification from the World Organization for Animal Health (OIE) about an outbreak of low-pathogenic H5N1 avian influenza on a poultry farm in Dronten for the protection of Hong Kong's public and animal health.
Tuesday, March 04, 2014 New Avian Influenza Sampling Method Saves Money
US - A number of poultry industry groups are using a less costly method to collect avian influenza virus samples, thanks to the US Department of Agriculture (USDA) scientists.ThePoultrySite News Desk H7N9 Bird Flu Cases in Live Bird Markets in Hunan
CHINA - The Chinese veterinary authorities have reported two cases from two outbreaks of low pathogenic avian influenza (H7N9) in live bird markets located in Hunan.ThePoultrySite News Desk H5N1 Bird Flu in Four Vietnamese Provinces
VIET NAM - The Vietnamese veterinary authorities have reported four outbreaks of highly pathogenic avian influenza in Hai Duong, Gia Lai, Soc Trang and Hung Yen.ThePoultrySite News Desk Bird Flu Found at Public Animal Research Center
SOUTH KOREA - Bird flu has been detected at a government-run facility for animal research despite stringent efforts to contain the spread of the highly contagious virus. The Chosunilbo
Monday, March 03, 2014 Cambodia Reports Two More New Human Cases of Bird Flu
CAMBODIA - Two more children have been confirmed for H5N1 human avian influenza, bringing the number of cases to five so far this year, said a joint statement by the World Health Organization and the Cambodian Health Ministry Friday.Xinhua Online Over 40,000 Chickens Destroyed on Dutch Farm
NETHERLANDS - The Dutch veterinary authorities have reported an outbreak of H5N1 low pathogenic avian influenza (LPAI) at a poultry farm in th province of Flevoland.ThePoultrySite News Desk China Reports One More H7N9 Death
CHINA - One more person in China has died from the deadly strain of H7N9 bird flu, health authorities said Sunday.China Daily South Korea Reports H5N8 Bird Flu Outbreaks
SOUTH KOREA - The South Korean veterinary authorities have reported 12 outbreaks of highly pathogenic avian influenza (HPAI) across farms in various regions of the country.ThePoultrySite News Desk Prevalence of Influenza A Viruses in Livestock and Free-living Waterfowl in Uganda
UGANDA - This study by Halid Kirunda of the National Livestock Resources Research Institute and several collaborators, demonstrates the occurrence of influenza A viruses in animals in Uganda. The results suggest that increase in volumes of migratory waterfowl in the country could be associated with increased prevalence of these viruses in free-living waterfowl and poultry. BMC Veterinary Research Spread of Highly Pathogenic Avian Influenza (Subtype H5N1) Clades in Bangladesh 2010 and 2011
BANGLADESH - The spread of highly pathogenic avian influenza H5N1 in Bangladesh is characterised by reported long-distance translocation events. This poses a challenge to disease control efforts, according to lead author, Michael P. Ward.Preventative Veterinary Medicine
Increased enforcement of biosecurity and stronger control of movements between affected farms and susceptible farms, and better surveillance and reporting, is needed.
Although the movement of poultry and equipment appears to be a more likely explanation for the patterns identified, the relative contribution of trade and the market chain versus wild birds in spreading the disease needs further investigation.
(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