BECKHAM
14-02-2017, 07:48 AM
Nearly two-thirds of cases in west African outbreak were caused by just 3% of people.
for more .... (http://www.bbc.co.uk/news/health-38955871)
for more .... (http://www.bbc.co.uk/news/health-38955871)
مشاهدة النسخة كاملة : Ebola 'super-spreaders' cause most cases