ANASTASIA MOLONEY AFTER losing his sister to Ebola and narrowly surviving the disease himself, health worker Sherry Bangura is on a mission to spread awareness about COVID-19 and stop it spreading., About one in three Ebola patients survived the outbreak which killed more than 11,000 people in West Africa between 2013 and 2016. Bangura, 32, from Sierra Leone, says survivors like him are in a unique position to educate others about their experience and the importance of hygiene and vaccines. As countries gear up to roll out COVID-19 vaccines, Bangura is on the frontlines -- one of millions of health…