GENEVA, July 24 (Xinhua) -- The Joint United Nations Program on HIV/AIDS (UNAIDS) on Tuesday urged countries to take bold action to address the HIV prevention crisis amid the ongoing 22nd International AIDS Conference in Amsterdam, Netherlands.

Around 1.8 million people became newly infected with HIV in 2017 and around 50 countries experienced a rise in new HIV infections, as HIV prevention services are not being provided on an adequate scale or with sufficient intensity, UNAIDS warned.

In its latest report, "Miles to Go: Closing Gaps, Breaking Barriers, Righting Injustices," the UN agency shows that 47 percent of new HIV infections globally are among key populations, including sex workers, people who inject drugs, and gay men and other men who have sex with men.

Although combination HIV prevention approaches work for the key populations, many countries are unwilling to invest in approaches viewed as culturally or religiously inappropriate, unpopular or counter to the bad laws that may exist in a particular country.

"Health is a human rights imperative and we are deeply concerned about the lack of political commitment and the failure to invest in proven HIV programmers, particularly for young people and key populations," said UNAIDS Executive Director Michel Sidibe. "If countries think they can treat their way out of their epidemics, they are dangerously mistaken."

The report warns that HIV prevalence can be high as up to 70 percent among sex workers in some southern African countries; however, about three quarters of countries reporting to UNAIDS criminalize some aspect of sex work and sex workers report that condoms are often confiscated by the police.

In eastern Europe and central Asia, one third of all new HIV infections are among people who inject drugs; however, 87 percent of countries reporting to UNAIDS criminalize drug use or possession of drugs, driving people underground and out of reach of HIV services.

"If countries don't provide comprehensive sexuality education, condoms, harm reduction or pre-exposure prophylaxis for key populations, this will ultimately translate into more new HIV infections, higher future treatment costs and a higher burden for health-care budgets and systems," Sidibe said.

In 2017, a Global HIV Prevention Coalition of UN member states, donors, civil society organizations and implementers was established to address the HIV prevention crisis. It hopes to strengthen and sustain political commitment for primary HIV prevention by setting a common agenda, the HIV Prevention 2020 Road Map, to accelerate progress towards reducing new HIV infections by 75 percent by 2020.

The progress, however, has not been fast enough, UNAIDS said, which enlists more efforts to move from political commitment to strong actions on the ground. That's why one of the major agendas of the ongoing International AIDS Conference, started in Amsterdam on Monday, is to discuss the urgency for scaling up HIV prevention and address persisting challenges.