The World Health Organization says yet another person in Indonesia has died from bird flu, bringing the nation's death toll to 55.

The agency said in a statement Monday that a 27-year old woman died from the virus in Central Java province Friday, five days after she developed symptoms of the disease.

The W.H.O. says it is still investigating how she was exposed to bird flu.

Earlier Monday, Indonesian health authorities said Monday an elderly woman in West Java in the town of Bandung died overnight from bird flu.

And on Saturday, an 11-year-old boy died from the virus in a Jakarta hospital.

Indonesia has the highest number of bird flu-related deaths in the world.

The disease has killed at least 149 people worldwide over the past three years. Most victims contract the virus from dead or sick birds.

Some information for this report provided by AP.