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Below is a round-up of the key developments on the spread of the bird flu virus (H5N1) and the threat it poses to human health. Each title is a link to the full article.

Click here to see the latest World Health Organization (WHO) figures of confirmed human cases.

Friday 20 April 2007
China to share bird flu samples
China has agreed to share human bird flu samples with the WHO for the first time in a year (Source: Reuters).

Vietnam finalises poultry vaccine production
Researchers have begun production of a vaccine for chickens, ducks and geese (Source: Vietnam News).

Thursday 19 April 2007
Doctors highlight corticosteroid risk in bird flu treatments
Bird flu patients should not be treated with corticosteroids, which have little effect and can sometimes harm patients with severe infection, according to the WHO (Source: Canadian Press).

Wednesday 18 April 2007
Scientists 'predict' farm-to-farm transmission of bird flu
Researchers in the Netherlands have developed a model, which they say can predict the probability of bird flu transmission from one farm to another (Source: Science Daily).

Tuesday 17 April 2007
US approves human bird flu vaccine
The United States has approved a human bird flu vaccine as an interim measure while better immunisation is developed (Source: Reuters).

Monday 16 April 2007
Vietnamese health workers 'unprepared' for bird flu
Vietnam's Health Ministry raised concerns after a conference revealed that 75 per cent of staff working in preventative medicine are untrained for epidemics and emerging pandemics, including bird flu (Source: Vietnam News Agency).

Scientists: new bird flu strains emerging and on the move
DNA analysis of 36 strains of the H5N1 virus from Africa, Europe, the Middle East and Vietnam shows that new strains have developed and that the virus has recently spread west from Asia (Source: CCNews).

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