A terminally ill patient raises his arm in a hospice for those dying of AIDS at the Buddhist temple Wat Prabat Nampu in Lopburi province, north of Bangkok November 30, 2014. 

A patient rests in his bed in a hospice for those suffering from AIDS at the Buddhist temple Wat Prabat Nampu in Lopburi province, north of Bangkok November 30, 2014. From 1992, the temple has provided housing for HIV-positive patients and palliative care for those in the final stages of AIDS. 

A volunteer pins a red ribbon on the blouse of a sex worker, as her child looks on, in Kamathipura, Mumbai's red light district, December 1, 2014. 

Terminally ill patients rest in their beds in a hospice for those dying of AIDS at the Buddhist temple Wat Prabat Nampu in Lopburi province, north of Bangkok November 30, 2014. 

Arun Lunt, a practically blind AIDS patient, cools herself in front of a fan at the Buddhist temple Wat Prabat Nampu where she has been living for seven years in Lopburi province, north of Bangkok November 30, 2014. 

A patient is given bath at a hospice for those dying of AIDS at the Buddhist temple Wat Prabat Nampu in Lopburi province, north of Bangkok November 30, 2014. 

Nine-year-old Tumelo holds his grandmother's hand after taking his medication at Nkosi's Haven, south of Johannesburg November 28, 2014. Nkosi's Haven provides residential care for destitute HIV-positive mothers and their children, whether HIV-positive or not. Nkosi's Haven is named after Nkosi Johnson, the young AIDS activist who passed away on International Children's Day on June 1, 2001. 

Children play before going to school at Nkosi's Haven, south of Johannesburg November 28, 2014. 

Nine-year-old Tumelo shows off antiretroviral (ARV) pills before taking his medication at Nkosi's Haven, south of Johannesburg November 28, 2014. 

A girl covers herself while taking medication at Nkosi's Haven, south of Johannesburg November 28, 2014. 

A terminally ill man is comforted by another patient in a hospice for those dying of AIDS at the Buddhist temple Wat Prabat Nampu in Lopburi province, north of Bangkok November 30, 2014. 

Girls perform a traditional dance in an alley during an HIV/AIDS awareness program in Kolkata November 30, 2014. 

Patients chat as they rest inside a HIV/AIDS hospice in the suburbs of Yangon, November 30, 2014. 

A patient rests inside a HIV/AIDS hospice in the suburbs of Yangon, November 30, 2014. 

Children watch a street performance to mark World AIDS Day in Kamathipura, Mumbai's red light district, December 1, 2014. 

Red balloons are released to mark World AIDS Day at the Emilio Ribas Hospital in Sao Paulo December 1, 2014. 

A taxi driver is given condoms by a member of the Treatment Action Campaign as they campaign for safe sex in Daveyton, outside Johannesburg November 27, 2014. 

A preserved body of an AIDS victim is displayed in a museum at the Buddhist temple Wat Prabat Nampu in Lopburi province, north of Bangkok November 30, 2014. 

Kanye West performs with U2 during a surprise concert in support of World AIDS Day in Times Square in New York December 1, 2014. REUTERS/Carlo Allegri (UNITED STATES - Tags: ENTERTAINMENT) 

Chris Martin performs with U2 during a surprise concert in support of World AIDS Day in Times Square in New York, December 1, 2014. REUTERS/Carlo Allegri (UNITED STATES - Tags: ENTERTAINMENT HEALTH) 

Carrie Underwood performs with U2 during a surprise concert in support of World AIDS Day in Times Square in New York, December 1, 2014. REUTERS/Carlo Allegri (UNITED STATES - Tags: ENTERTAINMENT HEALTH) 

Former U.S. President Bill Clinton speaks during a surprise concert in support of World AIDS Day in Times Square in New York December 1, 2014. REUTERS/Carlo Allegri (UNITED STATES - Tags: ENTERTAINMENT HEALTH POLITICS) 

Kanye West performs with U2 during a surprise concert in support of World AIDS Day in Times Square in New York, December 1, 2014. REUTERS/Carlo Allegri (UNITED STATES - Tags: ENTERTAINMENT HEALTH) 

Chris Martin performs with U2 during a surprise concert in support of World AIDS Day in Times Square in New York, December 1, 2014. REUTERS/Carlo Allegri (UNITED STATES - Tags: ENTERTAINMENT HEADSHOT PROFILE) 

Chris Martin performs with U2 during a surprise concert in support of World AIDS Day in Times Square in New York, December 1, 2014. REUTERS/Carlo Allegri (UNITED STATES - Tags: ENTERTAINMENT HEALTH TPX IMAGES OF THE DAY) 

Chris Martin (L) and Adam Clayton perform during a surprise concert in support of World AIDS Day in Times Square in New York, December 1, 2014. REUTERS/Carlo Allegri (UNITED STATES - Tags: ENTERTAINMENT HEALTH) 

Bruce Springsteen performs with Adam Clayton of U2 (R) during a surprise concert in support of World AIDS Day in Times Square in New York December 1, 2014. Springsteen filled in for U2's injured lead singer Bono on Monday evening. REUTERS/Carlo Allegri (UNITED STATES - Tags: ENTERTAINMENT HEALTH) 

Bruce Springsteen performs with U2 during a surprise concert in support of World AIDS Day in Times Square in New York, December 1, 2014. REUTERS/Carlo Allegri (UNITED STATES - Tags: ENTERTAINMENT HEALTH) 

Bruce Springsteen performs with U2 during a surprise concert in support of World AIDS Day in Times Square in New York, December 1, 2014. REUTERS/Carlo Allegri (UNITED STATES - Tags: ENTERTAINMENT HEALTH TPX IMAGES OF THE DAY)