Fears of major bird flu outbreak in China

Fears of a major outbreak of bird flu in China grew on Friday as four more suspected outbreaks in three new regions were reported.

    Around 200,000 poultry have been culled in China

    The new suspected cases, in addition to three confirmed

    outbreaks in southwest and central provinces of China, came after the World

    Health Organisation (WHO) warned the outbreak there could be

    far larger than reported.

    Of the latest suspected outbreaks in China, two were detected in

    eastern Anhui province, one in the eastern coastal metropolis of

    Shanghai, and the other in the southern province of Guangdong, the

    Xinhua news agency said.

    The WHO said that given China's size and its vast poultry

    industry, there was only a "small window of opportunity" to prevent

    a major outbreak of the disease.

    "It's entirely possible that there are outbreaks elsewhere (in

    China) that have not been reported," Beijing-based WHO spokesman Roy

    Wadia said.

    "If there are small, isolated outbreaks, it could be entirely

    possible it could be unnoticed. This could cause the virus to spread

    faster," he said, urging Beijing to improve co-operation and

    prevention measures swiftly.

    Import ban 

    After Beijing announced the four new suspected outbreaks, Hong

    Kong said it had suspended the import of all live birds and poultry

    meat from the whole of mainland China.

    "It's entirely possible that there are outbreaks elsewhere (in

    China) that have not been reported.

    If there are small, isolated outbreaks, it could be entirely

    possible it could be unnoticed. This could cause the virus to spread


    Roy Wadia,
    World Health Organisation

    It had already banned imports

    from Guangxi, Hunan and Hubei provinces.

    Meanwhile, the WHO said on Friday the current wave of bird

    flu outbreaks sweeping Asia may have appeared as early as April


    WHO spokeswoman Maria Cheng said a similar strain was found in

    samples that were rechecked by a WHO-affiliated laboratory


    "One of our collaborating centres received two weeks ago a

    sample from a country that we are not naming that had been taken

    last April," she said


    The outbreaks, which have killed 10 people in Vietnam and

    Thailand and infected millions of poultry in 10 Asian countries,

    were first reported in South Korea on 15 December last year.

    Poultry cull 

    Health experts have warned that while humans have so far only

    caught the disease through contact with infected birds or their

    droppings, it could claim millions of lives if the H5N1 strain

    mutated into a more contagious form.

    Only about 200,000 chickens and ducks have been culled in China, but more than 25 million poultry have been slaughtered across the rest of the region as Asia's main weapon against the outbreaks.

    But the WHO has said there is an increased risk of mutation if the

    cull in China is not executed properly.

    "If (the killing of birds) is done in such a way that exposes

    more people, then this... could be increasing the risk of

    developing a strain that you would not want to see," spokesman

    Dick Thompson said on Thursday.

    A British laboratory is working on
    a vaccine for the bird flu virus

    "From what we can see... many of these culling workers are not

    wearing the right personal protection equipment. We are also unsure

    how many of these people have been vaccinated against (normal)


    The UN Food and Agriculture Organisation (FAO) also voiced

    concern that the mass cullings were not happening fast enough in

    poorer Asian countries.

    Indonesia criticism 

    "We are... concerned that mass cullings are not taking place at

    a speed we consider absolutely necessary to contain the virus H5N1

    in the region," said Hans Wagner, a scientist with the Rome-based


    World experts on bird flu will meet in Rome next week to plot a

    strategy for controlling the disease, a FAO source said on Friday.

    Cambodia, China, Indonesia, Japan, Laos, South Korea, Thailand

    and Vietnam have all reported outbreaks of H5N1 among poultry, while

    Taiwan and Pakistan have reported weaker strains of the virus.

    Indonesia has come in for heavy criticism over its reluctance to

    carry out a mass cull to combat the virus which has infected

    millions of birds there.

    President Megawati Sukarnoputri on Thursday ordered the

    immediate killing of all poultry infected with bird flu following

    pressure from the WHO.

    But Indonesia appeared to backtrack on Friday, with officials

    saying they would only carry out a selective cull.

    'Quarantine area' 

    WHO Western Pacific spokesman Peter Cordingley said Indonesia

    should comply with UN Food and Agriculture Organisation

    recommendations by placing a "sanitary zone or a quarantine area"

    around infected areas.

    This would require killing chickens in farms

    close to those with confirmed infections.

    "We have to cut down on the contact level between chickens and

    humans. It's the only way"

    Peter Cordingley,
    World Health Organisation

    "We have to cut down on the contact level between chickens and

    humans," Cordingley said. "It's the only way."

    In Vietnam, the government said more than half of its 64

    provinces and cities had now been hit by the outbreak, as

    authorities in Hanoi ordered the slaughter of all of the capital's

    one million chickens.

    In Thailand alone 10.7 million chickens have been slaughtered,

    mostly packed into sacks and buried alive in deep pits in a hasty

    operation that has been criticised as inhumane and avoidable.

    Bird flu vaccine

    And in another development, a

     British laboratory is working to use

    genetic technology to create a vaccine which could combat the spread

    of bird flu.

    A sample of the live virus was flown in a bomb-proof container

    from Vietnam to a research laboratory at a biological institute

    north of London, the BBC said.

    "The virus we are using has killed chickens in south Asia, and

    it has killed humans," virologist Dianne Major told the broadcaster


    Researchers at the National Institute for Biological Standards

    and Control hope to build a vaccine by combining human and bird -

    known as avian - flu genes.

    This involves first taking a cell from the bird flu virus and

    then altering its genes to make it safe, before genetic material is

    then taken from a human flu virus.

    The resulting man-made combined virus - which researchers hope

    could be ready within as little as two months - should then provide

    the basis of a vaccine.

    SOURCE: Agencies


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