By James C. McKinley Jr. | The New York Times

Like many prostitutes who ply their trade in the darkened bars and discos near Havana’s tourist hotels, Maria says she does not go out every night. But whenever money gets tight and her 12-year-old son is hungry, she puts on a red miniskirt, puts rouge on her lips and heads for El Conejito bar, a thinly disguised rendezvous point.

“Most of the tourists come to look for girls, tobacco, you know, the things they cannot get in their country,” she said. “They say the Cuban girls are very hot.”

Maria, who is 36 and insisted that her last name not be published, said she worried about contracting AIDS and forced her clients to use condoms, every time. She is knowledgeable about the disease, having learned about it through the government’s anti-AIDS program, and she was tested twice during a stint in jail last year for prostitution. Since then, she said, she voluntarily gets tested regularly at the free health clinics.

A decade after an economic collapse forced thousands of young women and men into prostitution, Cuba has become something of an anomaly in Latin America: a destination for sex tourists where AIDS has yet to become an uncontrollable pandemic.

Cuba has the lowest infection rate in the Western Hemisphere, less than 0.1 percent of the population, according to the World Health Organization. The infection rate in the United States is six times that in Cuba, and Cuba’s rate is far below that in many neighboring countries in the Caribbean and Central America.

That is not to say the disease is not spreading in Cuba, and some outside the government say a thriving sex industry has contributed to its spread. On July 3, 1998, the Cuban government said 1,980 people had tested positive for the virus that causes AIDS since 1986. Since 1998, 3,879 more have been discovered to have the virus, according to statistics released by health officials; in just six years, the number of newer cases has nearly doubled.

Cuban health officials acknowledge that the number of infections has increased, as in most countries, but they say the overall rate is very low for a population of 11 million.

“Prostitution is not an aggravating problem in the epidemic,” said Dr. Rigoberto Lopez, the director of the National Center for the Care of Persons with HIV-AIDS, saying that only a few of the 280 patients he cares for at the main sanitarium for AIDS patients in Havana, known as Los Cocos, are former sex workers.

For more than a decade, the government has run an intense public-education campaign in schools and on state-owned television and radio stations, promoting the use of condoms and informing people about how HIV is transmitted. The system of free primary care clinics in Cuba has also led to the early detection of the virus in many people, Cuban and U.N. officials say.

In the early 1990s, Cuba quarantined people with the virus, and those discovered to be infected are still required to stay three to six months in one of Cuba’s 13 government AIDS sanitariums, where they receive treatment and counseling on how to survive with the virus and how to avoid passing it along. Once they leave the hospitals, the patients are closely monitored in their homes by social workers, officials say. U.N. officials who track AIDS say Cuba has done a better job than most countries at corralling the disease.

The low levels of the virus in Cuba and the inexpensive price of sex compared with other places have made the island a destination for male tourists seeking women.

In Havana, the sex trade becomes obvious after sunset. Around 10 p.m., young women in skimpy attire begin gathering outside the main tourist hotels, asking men if they would like to go to nightclubs, where a sex-for-cash proposition is usually made.

Sex workers seeking tourist clients can also be seen outside certain discos and bars, or hitchhiking along the Malecon, the main highway separating Havana from the sea, to proposition tourists.

In interviews, several said the brutal economic conditions in Cuba under the U.S. embargo, where monthly state salaries do not buy enough food for a month, had pushed them into the business.

Most work for themselves, and on most days, they say, they can count on $50 to $75 from Europeans, plus meals, drinks and gifts.

The government periodically cracks down on prostitution, they said. Undercover police officers work the streets and clubs, looking for prostitutes. An arrest can mean a two-year prison term. But some women said they kept relationships with pimps to pay off the police.

For the most part, the women who work as prostitutes say they are looking to link up with someone who can take them out of Cuba, or provide them with a steady income. Many are part-time prostitutes, who go out only when their meager state salaries run out.

Hermita, 28, a secretary at a school who earns about $8 a month, was trolling for tourists near the Hotel Inglaterra in Old Havana on a recent evening. She has a 2-year-old daughter from a marriage that did not last, and she said she needed money for food, clothing and shoes.

“When I am with a foreigner, I try to be with them for the whole time they are here,” she explained. “Above all it’s about the money.” Ideally, however, she would “meet a foreigner, marry him and be able to travel, without having to leave the country forever.”

Outside Jardinas 1830, an outdoor disco on the Malecon also known as a place to pick up prostitutes, Maria A. and her sister, Yamilet, two young women from Camaguey province, were showing off their legs and midriffs to tourists who approached the club, hoping someone would invite them in for a drink or take them to a rooming house for the night.

Maria A., 23, said she gave up working as a hairdresser and started sleeping with tourists two years ago. She said she came close to striking it rich when an older Italian tourist had agreed to pay for an apartment for her. But they quarreled on a subsequent visit, she said, and now she is on the hunt again. In the meantime, she collects $40 to $70 a night from any tourist she can lure to a rooming house with which she has a mutually beneficial arrangement.

“Nobody does this because they like it,” she said, drawing on a cigarette. “I would marry someone to get out.”