TIMELINE-Bird flu developments

(Reuters) - Defra on Tuesday confirmed a bird flu outbreak on a turkey farm in Suffolk was the virulent H5N1 strain.

It is Britain's second outbreak of H5N1 in 2007.

There have been 206 human deaths globally from the H5N1 strain and 335 confirmed cases of infection since 2003, according to World Health Organisation data.

Here is a chronology of major recent bird flu developments:

February 8, 2006 - First African cases of the deadly H5N1 strain are detected in poultry in northern Nigeria.

February 18 - India announces its first cases of H5N1, finding the virus in poultry in a western state.

February 25 - France confirms H5N1 at a farm where thousands of turkeys died, the first case of the virus in domestic farm birds in the European Union.

September 28 - China shares long-sought-after samples of H5N1 in what many scientists view as a breakthrough in cooperation.

February 3, 2007 - WHO confirms bird flu killed a 22-year-old Nigerian woman, its first known human fatality in sub-Saharan Africa.