JAKARTA, Indonesia -- An Indonesian woman has died of bird flu, taking the national toll from the avian virus to 75, a Health Ministry spokesman said Monday.

The woman, 29, died Thursday on the island of Sumatra, said Nyoman Kandun, citing two rounds of laboratory testing. No details were available about how she may have contracted the disease.

Indonesia has reported 75 bird flu fatalities since it first broke in Asia out two years ago - more than a third of the world's total.

In January, it stopped supplying virus samples to the World Health Organization, citing concerns they could be used to develop a commercial vaccine unaffordable to people in developing countries.

A broad agreement was worked out in March, but Indonesia has refused to resumed shipments after recent talks in Geneva failed to iron out the details.