Stigmatisation is always one of the biggest hindrances to fighting off an epidemic, and since the Ebola hit there has been several incidents lumping people from Africa into one bracket and treating them like they all have Ebola.
The latest incident involves two Senegalese American kids, who got beaten and called names at school just because they were unfortunate to have African ancestry, despite being born in the United States just like the ignorant kids who attacked them.