Westchester County still has more people with AIDS and HIV than any other county in New York state outside of New York City.

There are about 2,500 people living with AIDS and another 2,500 infected with HIV, according to the county’s Health Department. About a quarter of those with HIV are thought not to know it, said the health commissioner, Joshua Lipsman.

World AIDS Day is Friday and 25 years after the epidemic began, here’s a snapshot of the disease in the county.

More women have become infected—50 percent of those with HIV are female.

African Americans and Latinos are disproportionately affected. Fifty percent of those with the HIV are black, 20 to 25 percent are Hispanic.

Of those with HIV, 30 percent got the virus through heterosexual sex, another 30 percent by sharing needles. Infection among men who have had sex with men has dropped to 17 percent.

And here are the communities that have the highest rates: Yonkers, Mount Vernon, Ossining and White Plains

On Friday, there are events planned throughout the county. Plus, the Health Department is planning a conference that will look at issues surrounding AIDS testing for Dec. 13 at the Maryknoll Center in Ossining.

The Journal News will be covering many of the events and spending time with people with HIV and AIDS. Look for the stories on Saturday.

UPDATE: Westchester’s Health Department updated its numbers on Thursday. Here are the revised figures.

People reported to be living with AIDS: 2,257

People reported to be living with HIV: 949

Total reported to be living with AIDS and HIV: 3,206

Another 1,069 people are thought to have HIV and not know it, for a total of 4,275 people living with AIDS and HIV.