Dr Thomas Frieden, the director of the Centres for Disease Control and Prevention (CDC), said on Sunday the American doctor who contracted Ebola in West Africa seemed to have improved. Dr Frieden, who was making media appearances in an effort to reassure a public worried by press reports and speculation over the West African outbreak, the worst ever, told NBC’s Meet the Press talk show it was encouraging to see Dr Kent Brantly walk out of an ambulance unassisted when he arrived {....}