Fridays are awesome! Good to have you watching CNN STUDENT NEWS. I'm Carl Azuz at the with CNN Center.Two American Ebola patients have survived the virus and left the hospital.Nancy Writebol and Dr.Kent Brantly seen here are American missionaries.They caught Ebola while helping other victims in the West African country of beria.They were evacuated earlier this month and treated at Emory University Hospital in Atlanta, Georgia.There's no cure for Ebola. The vast majority of those who get it, die if they are not treated.Dr.Brantly and Ms. Writebol were treated and also given an experimental drug to help.It's not a proving drug, a Spanish priest who've got the same medicine died.But doctors say the Americans no longer have virus in their system and we are well enough to go home without any danger of transferring the virus to the public.Dr.Brantly says, it's a miraculous day.The rain helped keep things calm in Ferguson, Missouri Wednesday night.The town's been on edge since an unarmed African-American man was shot and killed by a white police fficer.Protests, some of them violent, have been almost constant since then.Most are in support of 18-year old Michael Brown. Eyewitnesses say he was trying to surrender when Officer Darren Wilson shot him on August 9.Some demonstrators have turned out to support Officer Wilson. Police say, Brown struggled with him and reached for the policeman's gun before the shooting.A grand jury has been assembled. This is a group of people who will look at the evidence and decide whether Officer Wilson should be charged with the crime.