A red ribbon is displayed on the Paris City Hall in support of the fight against AIDS on World AIDS Day on Dec.1. Charles Platiau/Reuters
People gather to light candles during events for World Aids Day outside of the municipality at Eleftheria square in divided capital Nicosia, Cyprus on Dec. 1. Petros Karadjias/AP
People light candles for AIDS victims during an AIDS awareness event marking the World AIDS Day at Sergels Torg square in Stockholm, Sweden on Dec. 1. Janerik Henriksson/Scanpix/Reuters
A man holds a free condom taken from a signboard promoting HIV/AIDS awareness during World AIDS Day in Athens, Greece on Dec. 1. Yiorgos Karahalis/Reuters
Students form a red ribbon during an HIV/AIDS awareness rally on World AIDS Day at Marina beach in the southern Indian city of Chennai on Dec. 1. Babu/Reuters
An artist takes part in a HIV/AIDS awareness rally on World AIDS day in central Istanbul, Turkey on Dec. 1. Murad Sezer/Reuters
Activists form AIDS red ribbons during a HIV/AIDS awareness rally on World AIDS day in central Istanbul, Turkey on Dec. 1. Murad Sezer/Reuters
Health workers and students release balloons after they staged a march through the Philippine capital to spread awareness about AIDS during the World AIDS day in Manila on Dec. 1. Cheryl Ravelo/Reuters
A child touches a dress made of condoms during an HIV/AIDS awareness campaign on World AIDS day in Yantai, China on Dec. 1. Reuters
A member of the Population and Community Development Association wears a dress and holds an umbrella made with condoms during a march marking World AIDS Day in Bangkok, Thailand on Dec. 1. Chaiwat Subprasom/Reuters
Health workers began knocking on doors across Sierra Leone on Friday in hopes to find and isolate Ebola patients who have resisted going to health centers. 'If people don't have access to the right information, we need to bring life-saving messages to them,' said a UNICEF Representative in Sierra Leone.
ByClarence Roy-Macaulay, Associated Press
Thousands of health workers began knocking on doors across Sierra Leone on Friday in search of hidden Ebola cases as the entire West African nation was locked down in their homes in an unprecedented effort to combat the deadly disease.