People light candles during a commemoration event for the people that died on consequence of Human Immunodeficiency Virus (HIV), organized by the Atlacatl Association Vivo Positivo, at the Salvador del Mundo Square, in San Salvador, capital of El Salvador, on May 19, 2013. A total of 4,000 candles were lit during the event. (Xinhua/Oscar Rivera)

People light candles during a commemoration event for the people that died on consequence of Human Immunodeficiency Virus (HIV), organized by the Atlacatl Association Vivo Positivo, at the Salvador del Mundo Square, in San Salvador, capital of El Salvador, on May 19, 2013. A total of 4,000 candles were lit during the event. (Xinhua/Oscar Rivera)

People light candles during a commemoration event for the people that died on consequence of Human Immunodeficiency Virus (HIV), organized by the Atlacatl Association Vivo Positivo, at the Salvador del Mundo Square, in San Salvador, capital of El Salvador, on May 19, 2013. A total of 4,000 candles were lit during the event. (Xinhua/Oscar Rivera)

A girl lights candles during a commemoration event for the people that died on consequence of Human Immunodeficiency Virus (HIV), organized by the Atlacatl Association Vivo Positivo, at the Salvador del Mundo Square, in San Salvador, capital of El Salvador, on May 19, 2013. A total of 4,000 candles were lit during the event. (Xinhua/Oscar Rivera)

A woman lights candles during a commemoration event for the people that died on consequence of Human Immunodeficiency Virus (HIV), organized by the Atlacatl Association Vivo Positivo, at the Salvador del Mundo Square, in San Salvador, capital of El Salvador, on May 19, 2013. A total of 4,000 candles were lit during the event. (Xinhua/Oscar Rivera)