Canada's Prime Minister Justin Trudeau takes part in a World AIDS Day flag raising ceremony on Parliament Hill in Ottawa, Ontario, Canada, December 1, 2016. REUTERS/Chris Wattie 

Canada's Prime Minister Justin Trudeau takes part in a World AIDS Day flag raising ceremony on Parliament Hill in Ottawa, Ontario, Canada, December 1, 2016. REUTERS/Chris Wattie 

Canada's Prime Minister Justin Trudeau raises the World AIDS Day flag during a ceremony on Parliament Hill in Ottawa, Ontario, Canada, December 1, 2016. REUTERS/Chris Wattie 

U.S. Ambassador to the United Kingdom Matthew Barzun (L) holds a light from his mobile phone for singer Elton John as he speaks at a reception at The U.S. Ambassador's London residence, Britain, November 4, 2015. The reception celebrated the launch of the Elton John AIDS Foundation and the U.S. President's Emergency Plan for AIDS Relief $10 million partnership to provide grants to organisations working to meet the HIV-related needs of Lesbian, Gay, Bisexual and Transgender people. REUTERS/Suzanne Plunkett TPX IMAGES OF THE DAY

U.S. Ambassador to the United Kingdom Matthew Barzun (L) holds a light from his mobile phone for singer Elton John as he speaks at a reception at The U.S. Ambassador's London residence, Britain, November 4, 2015. The reception celebrated the launch of the Elton John AIDS Foundation and the U.S. President's Emergency Plan for AIDS Relief $10 million partnership to provide grants to organisations working to meet the HIV-related needs of Lesbian, Gay, Bisexual and Transgender people. REUTERS/Suzanne Plunkett 

Singer Elton John speaks at a reception at The U.S. Ambassador's London residence, Britain, November 4, 2015. The reception celebrated the launch of the Elton John AIDS Foundation and the U.S. President's Emergency Plan for AIDS Relief $10 million partnership to provide grants to organisations working to meet the HIV-related needs of Lesbian, Gay, Bisexual and Transgender people. REUTERS/Suzanne Plunkett 

Singer Elton John speaks at a reception at The U.S. Ambassador's London residence, Britain, November 4, 2015. The reception celebrated the launch of the Elton John AIDS Foundation and the U.S. President's Emergency Plan for AIDS Relief $10 million partnership to provide grants to organisations working to meet the HIV-related needs of Lesbian, Gay, Bisexual and Transgender people. REUTERS/Suzanne Plunkett 

Singer Elton John speaks at a reception at The U.S. Ambassador's London residence, Britain, November 4, 2015. The reception celebrated the launch of the Elton John AIDS Foundation and the U.S. President's Emergency Plan for AIDS Relief $10 million partnership to provide grants to organisations working to meet the HIV-related needs of Lesbian, Gay, Bisexual and Transgender people. REUTERS/Suzanne Plunkett 

Singer Elton John speaks at a reception at The U.S. Ambassador's London residence, Britain, November 4, 2015. The reception celebrated the launch of the Elton John AIDS Foundation and the U.S. President's Emergency Plan for AIDS Relief $10 million partnership to provide grants to organisations working to meet the HIV-related needs of Lesbian, Gay, Bisexual and Transgender people. REUTERS/Suzanne Plunkett 

U.S. Global AIDS Coordinator Ambassador Deborah Birx, U.S. Ambassador to the United Kingdom Matthew Barzun, singer Elton John, his partner David Furnish and the Ambassador's wife Brooke Brown Barzun (L-R) pose for a photo during a reception at The U.S. Ambassador's London residence, Britain, November 4, 2015. The reception celebrated the launch of the Elton John AIDS Foundation and the U.S. President's Emergency Plan for AIDS Relief $10 million partnership to provide grants to organisations working to meet the HIV-related needs of Lesbian, Gay, Bisexual and Transgender people. REUTERS/Suzanne Plunkett 

U.S. Global AIDS Coordinator Ambassador Deborah Birx, U.S. Ambassador to the United Kingdom Matthew Barzun, singer Elton John, his partner David Furnish and the Ambassador's wife Brooke Brown Barzun (L-R) pose for a photo during a reception at The U.S. Ambassador's London residence, Britain, November 4, 2015. The reception celebrated the launch of the Elton John AIDS Foundation and the U.S. President's Emergency Plan for AIDS Relief $10 million partnership to provide grants to organisations working to meet the HIV-related needs of Lesbian, Gay, Bisexual and Transgender people. REUTERS/Suzanne Plunkett 

A man shows a packet of government-supplied 'Nirodh' condoms after collecting it from a distribution center at a hospital in New Delhi April 1, 2015. India is readying a redesign of the staid packaging of its half-century-old condom brand, incorporating pictures of handsome men and gorgeous women, in a desperate bid to seduce customers drawn to fancier versions sold by private firms. To match INDIA-HEALTH/CONDOMS REUTERS/Adnan Abidi 

Hostess Roxy Wood waits prior to the Drag Queen Bingo fundraiser to benefit the Pasadena Aids Service Center at Edwin Mills in Pasadena, California March 10, 2015. REUTERS/Mario Anzuoni (UNITED STATES - Tags: SOCIETY) 

A nurse takes care of an AIDS patient at the Glory Hut Foundation in Chonburi province, east of Bangkok January 20, 2015. In mid-December, villagers in Lang Nern, a few kilometres outside the seaside resort of Pattaya, voted to evict the Glory Hut Foundation, a small HIV/AIDS hospice. Villagers say that Glory Hut did not consult them before setting up the centre, the presence of people living with HIV/AIDs hurts their businesses and they fear catching opportunistic diseases. There is no legal backing for the eviction vote, but the hospice may move after being socially ostracised. In a country that has been at the forefront of the fight against HIV/AIDS, incidents such as this underline the stigma and discrimination that people still face. Picture taken January 20. To match story THAILAND-HIV/DISCRIMINATION REUTERS/Chaiwat Subprasom (THAILAND - Tags: HEALTH) 

A man dressed in a condom costume walks at Caleta Portales beach, during a summer awareness campaign by the Chilean Corporation for the Prevention of AIDS in Valparaiso city, northwest of Santiago January 9, 2015. REUTERS/Rodrigo Garrido (CHILE - Tags: DISASTER HEALTH SOCIETY ENVIRONMENT) 

The statue of Christ the Redeemer is lit up in red to promote the "Test, Treat, Live Better" awareness campaign marking World AIDS Day in Rio de Janeiro December 1, 2014. REUTERS/Pilar Olivares (BRAZIL - Tags: SOCIETY HEALTH) 

A nurse (L) hands out a red ribbon to a woman, to mark World Aids Day, at the entrance of Emilio Ribas Hospital, in Sao Paulo December 1, 2014. The world has finally reached "the beginning of the end" of the AIDS pandemic that has infected and killed millions in the past 30 years, according to a leading campaign group fighting HIV. United Nations data show that in 2013, 35 million people were living with HIV, 2.1 million people were newly infected with the virus and some 1.5 million people died of AIDS. By far the greatest part of the HIV/AIDS burden is in sub-Saharan Africa. REUTERS/Nacho Doce (BRAZIL - Tags: HEALTH SOCIETY) 

A volunteer pins a red ribbon on the blouse of a sex worker, as her child looks on, during an event to mark World AIDS Day in Kamathipura, Mumbai's red light district, December 1, 2014. The event was organised by the Social Activities Integration, a non-profit organisation which provides free condoms and medical care to people living with HIV and AIDS. REUTERS/Danish Siddiqui (INDIA - Tags: SOCIETY HEALTH TPX IMAGES OF THE DAY) 

Somjit, a former dancer in a transgender club and an AIDS patient, passes the time in front of her accommodation at the Buddhist temple Wat Prabat Nampu where she has been living for seven years 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 the AIDS disease. Data from 2013 estimates Thailand has 450,000 people living with HIV/AIDS, but only 353,000 have access to life-saving antiretroviral drugs. December 1 is World AIDS Day. Picture taken November 30, 2014. REUTERS/Damir Sagolj (THAILAND - Tags: SOCIETY HEALTH) 

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. From 1992, the temple has provided housing for HIV positive patients and palliative care for those in the final stages of the AIDS disease. Data from 2013 estimates Thailand has 450,000 people living with HIV/AIDS, but only 353,000 have access to life-saving antiretroviral drugs. December 1 is World AIDS Day. Picture taken November 30, 2014. REUTERS/Damir Sagolj (THAILAND - Tags: SOCIETY HEALTH TPX IMAGES OF THE DAY) 

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. From 1992, the temple has provided housing for HIV positive patients and palliative care for those in the final stages of the AIDS disease. Data from 2013 estimates Thailand has 450,000 people living with HIV/AIDS, but only 353,000 have access to life-saving antiretroviral drugs. December 1 is World AIDS Day. Picture taken November 30, 2014. REUTERS/Damir Sagolj (THAILAND - Tags: SOCIETY HEALTH TPX IMAGES OF THE DAY) 

Nine-year-old Tumelo shows off antiretroviral (ARV) pills before 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. December 1 is World AIDS Day. Picture taken November 28. REUTERS/Siphiwe Sibeko (SOUTH AFRICA - Tags: HEALTH) 

Names of patients are seen on pill cases 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. December 1 is World AIDS Day. Picture taken November 28. REUTERS/Siphiwe Sibeko (SOUTH AFRICA - Tags: HEALTH) 

A child uses a syringe to take her 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. December 1 is World AIDS Day. Picture taken November 28. REUTERS/Siphiwe Sibeko (SOUTH AFRICA - Tags: HEALTH) 

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. December 1 is World AIDS Day. Picture taken November 28. REUTERS/Siphiwe Sibeko (SOUTH AFRICA - Tags: HEALTH TPX IMAGES OF THE DAY) 

EDITORIAL USE ONLY - NO COMMERCIAL OR BOOK SALES. Marialena, a 42-year-old homeless AIDS sufferer and former drug addict who is on a methadone rehabilitation program, pushes away her boyfriend Dimitrios who is trying to clean up her self-inflicted wounds, under a bridge in central Athens May 15, 2013. Dimitrios, 51, was a dancer for a famous Greek folk dancing troupe until he lost his job three years ago and became homeless. Since the debt crisis erupted in 2009, hundreds of thousands of Greeks have lost their jobs and the unemployment rate in the country reached 26.8 percent in March, new figures show. Klimaka, a nongovernmental organisation, estimated there were around 20,000 homeless in Greece in 2012. Picture taken May 15, 2013. REUTERS/Yannis Behrakis (GREECE - Tags: SOCIETY POLITICS BUSINESS EMPLOYMENT)

ATTENTION EDITORS: PICTURE 17 OF 41 FOR PACKAGE 'DOWN AND OUT IN ATHENS'. TO FIND ALL IMAGES SEARCH 'UNEMPLOYMENT YANNIS' 

French professor Erwann Loret works on samples of a vaccine against AIDS in his laboratory in Marseille January 29, 2013. Clinical trials of a vaccine against the AIDS virus (HIV-1) will begin in February in Marseille with forty-eight infected volunteers, the Public Assistance Hospitals of Marseille (AP-HM) announced today. REUTERS/Jean-Paul Pelissier (FRANCE - Tags: HEALTH) 

French professor Erwann Loret works on samples of a vaccine against AIDS in his laboratory in Marseille January 29, 2013. Clinical trials of a vaccine against the AIDS virus (HIV-1) will begin in February in Marseille with forty-eight infected volunteers, the Public Assistance Hospitals of Marseille (AP-HM) announced today. REUTERS/Jean-Paul Pelissier (FRANCE - Tags: HEALTH) 

AIDS activists sing and chant during a rally across from the White House in Washington July 24, 2012. The international AIDS 2012 conference is currently being held in Washington.
REUTERS/Kevin Lamarque (UNITED STATES - Tags: HEALTH POLITICS CIVIL UNREST) 

Former NBA basketball player and AIDS patient Nate Granger, 56, poses for a portrait outside his apartment in this picture taken July 6, 2012 at JbJ Soul House Genesis 1, an affordable development with support services for low income and special needs people including tenants living with HIV/AIDS that is fully integrated with the services of acute care AIDS facility Broadway House, New Jersey's only specialized nursing facility for HIV/AIDS just one block away. Granger, who was diagnosed with HIV/AIDS in 2001 weighing just 165 pounds after suffering a stroke. Confined to a hospital bed unable to walk or talk and taking as many 18 pills a day in 2001 to combat the virus, Granger now takes just one pill a day, weighs 250 pounds lives in his own apartment and calls himself "living proof that HIV/AIDS patients have a chance to survive". Picture taken July 6, 2012. REUTERS/Mike Segar (UNITED STATES - Tags: HEALTH) 

A bowl of free New York City condoms are seen in a lobby at the AIDS Service Center of New York City (ASC/NYC) lower Manhattan headquarters July 3, 2012. Picture taken July 3, 2012. REUTERS/Mike Segar (UNITED STATES - Tags: HEALTH) 

27 year-old HIV-positive Zinmar Nwe, whose husband died of AIDS, bathes at the HIV/AIDS hospice, founded by a member of the National League for Democracy (NLD) party in the suburbs of Yangon May 26, 2012. Their plight demonstrates the painful limits of democracy in Myanmar. While the government is pursuing reforms that promise to overhaul its health ministry and other institutions, the process is too slow to bring change to its most destitute. There are few better examples than AIDS sufferers, who due to a combination of poor education, social stigma and bureaucratic mismanagement are isolated in clinics, cut off from society. Picture taken May 26, 2012. To match Feature MYANMAR-HIV/ REUTERS/Damir Sagolj (MYANMAR - Tags: SOCIETY HEALTH)

ATTENTION EDITORS PICTURE 13 OF 20 OF PACKAGE 'AIDS HOSPICE IN MYANMAR'
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U Sam Hla, a terminally ill AIDS patient rests in his hut at the HIV/AIDS hospice founded by a member of the National League for Democracy (NLD) party in the suburbs of Yangon May 26, 2012. Their plight demonstrates the painful limits of democracy in Myanmar. While the government is pursuing reforms that promise to overhaul its health ministry and other institutions, the process is too slow to bring change to its most destitute. There are few better examples than AIDS sufferers, who due to a combination of poor education, social stigma and bureaucratic mismanagement are isolated in clinics, cut off from society. Picture taken May 26, 2012. To match Feature MYANMAR-HIV/ REUTERS/Damir Sagolj (MYANMAR - Tags: SOCIETY HEALTH)

ATTENTION EDITORS PICTURE 01 OF 20 OF PACKAGE 'AIDS HOSPICE IN MYANMAR'
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U Sam Hla, a terminally ill AIDS patient rests in his hut in an HIV/AIDS hospice, founded by a member of the National League for Democracy (NLD) party in the suburbs of Yangon May 26, 2012. While the government is pursuing reforms that promise to overhaul its health ministry and other institutions, the process is too slow to bring change to its most destitute. There are few better examples than AIDS sufferers, who due to a combination of poor education, social stigma and bureaucratic mismanagement are isolated in clinics, cut off from society. REUTERS/Damir Sagolj (MYANMAR - Tags: SOCIETY HEALTH) 

Visitors kiss during the opening ceremony of the 20th Life Ball in Vienna May 19, 2012. Life Ball is Europe's largest annual AIDS charity event and takes place in Vienna's City Hall. REUTERS/Lisi Niesner (AUSTRIA - Tags: SOCIETY) 

Dancers perform on stage during the opening ceremony of the 20th Life Ball in Vienna May 19, 2012. Life Ball is Europe's largest annual AIDS charity event and takes place in Vienna's City Hall. REUTERS/Leonhard Foeger (AUSTRIA - Tags: SOCIETY FASHION) 

A model wears a Philip Treacy creation during the opening ceremony of the 20th Life Ball in Vienna May 19, 2012. Life Ball is Europe's largest annual AIDS charity event and takes place in Vienna's City Hall. REUTERS/Leonhard Foeger (AUSTRIA - Tags: SOCIETY FASHION) 

U.S. model Lydia Hearst poses during the opening ceremony of the 20th Life Ball in Vienna May 19, 2012. Life Ball is Europe's largest annual AIDS charity event and takes place in Vienna's City Hall. REUTERS/Lisi Niesner (AUSTRIA - Tags: ENTERTAINMENT FASHION SOCIETY) 

A participant arrives for the opening ceremony of the 20th Life Ball in Vienna May 19, 2012. Life Ball is Europe's largest annual AIDS charity event and takes place in Vienna's city hall. REUTERS/Leonhard Foeger (AUSTRIA - Tags: SOCIETY) 

Police arrest Megan Mulholland, an activist with Queerocracy and a member of ACT UP at Wall Street and Broadway, near the New York Stock Exchange, April 25, 2012. Members of the AIDS activist group, ACT UP, and members of Occupy Wall Street blocked traffic and held up signs that read, "Tax Wall St., End Aids" outside the New York Stock Exchange, resulting in arrests on Wednesday. REUTERS/Brendan McDermid (UNITED STATES - Tags: CIVIL UNREST CRIME LAW BUSINESS) 

The Christ the Redeemer statue is lit up in red atop the Corcovado mountain during a World AIDS Day event in Rio de Janeiro December 1, 2011. A total of 10 monuments including Christ the Redeemer will be lit up for three days as part of an AIDS campaign. REUTERS/Ricardo Moraes (BRAZIL - Tags: HEALTH SOCIETY TRAVEL EDUCATION) 

A woman pins a red ribbon on her shawl after participating in a rally to mark World AIDS Day in Kathmandu December 1, 2011. People participated in rallies and various programs all over Nepal to raise awareness to tackle the prejudice towards HIV-infected people and help stop the spread of the disease. REUTERS/Navesh Chitrakar (NEPAL - Tags: HEALTH ANNIVERSARY) 

Raksha, 25, a sex worker, prepares for a performance in Mumbai's Kamathipura red light district December 1, 2011. Social Activities Integration, a non-profit organisation which provides free condoms and medical care to people living with HIV and AIDS, held a commemoration for sex workers who died from AIDS on the eve of world AIDS day. REUTERS/Vivek Prakash (INDIA - Tags: SOCIETY ANNIVERSARY HEALTH) 

A Buddhist monk waits to pray at a World AIDS Day commemoration in Colombo December 1, 2011. REUTERS/Dinuka Liyanawatte (SRI LANKA - Tags: RELIGION HEALTH ANNIVERSARY) 

The sails of the Sydney Opera House turn red during a World Aids Day reception in Sydney December 1, 2011. REUTERS/Tim Wimborne (AUSTRALIA - Tags: HEALTH CITYSPACE)