This week, the United Nations held a high-level meeting to discuss progress against AIDS and to set new goals for the future. The three-day meeting in New York ended Friday. It marked twenty-five years since public health officials in the United States reported the first cases of AIDS.

A new U.N. report says the AIDS epidemic appears to be slowing down in its worldwide spread. But new infections continue to increase in some areas and countries. The report says India now has the largest number of H.I.V. infections, but Africa still has the largest number of people with AIDS.

The report describes the progress of countries toward targets set in two thousand one. U.N. officials say important progress has been made in some cases.

But other efforts have had limited success. For example, the World Health Organization failed to meet its "Three-by-Five" target. The goal was to get treatment to three million people with H.I.V. in developing countries by the end of two thousand five.

The new report says sixty-five million people have become infected with H.I.V. in the past twenty-five years. Twenty-five million of them have died of AIDS-related sicknesses.

These numbers include four million new infections last year and almost three million deaths. Around the world, about thirty-eight million people are now living with the virus that causes AIDS.

Treatments have improved, but there is still no AIDS vaccine and no cure.

Still, the U.N. report says there was eight thousand million dollars last year for the worldwide effort against AIDS. That is five times the level of financing in two thousand one.

AIDS is acquired immunodeficiency syndrome. The first documented cases appeared in a report dated June fifth, nineteen eighty-one. The Centers for Disease Control described a mysterious infection in five young homosexual men in Los Angeles, California. All had developed an unusual kind of pneumonia.

One month later, the C.D.C. reported four more cases in Los Angeles and six around San Francisco. It also reported twenty-six cases of an unusual kind of cancer in New York and Los Angeles. Other reports followed.

In nineteen eighty-three, researchers discovered the human immunodeficiency virus as the cause of AIDS. The earliest known H.I.V. infection was found in blood stored since nineteen fifty-nine. The blood came from a man in what is now the capital of the Democratic Republic of Congo, Kinshasa.

Last week, a team of scientists reported confirmation that H.I.V. came from chimpanzees in the nearby country of Cameroon. The researchers believe the virus passed to humans when hunters came in contact with infected blood. The infection could have crossed borders as people traveled along the Sanaga River and other waterways.

Study leader Beatrice Hahn of the University of Alabama says AIDS may have started in Africa as early as nineteen ten.

IN THE NEWS in VOA Special English was written by Nancy Steinbach. I'm Steve Ember.