..After visiting the city, Zhong Nanshan, director of the State Key Laboratory of Respiratory Disease and a specialist in severe acute respiratory syndrome (Sars), said human-to-human transmission was not only behind at least one confirmed case in Wuhan but also infections in two families in Guangdong province.
He said 14 medical staff contracted the virus from one carrier.
“The key to controlling the spread of the disease now is about preventing the emergence of a super-spreader [of the virus],” Zhong said, referring to infected patients who quickly help spread the virus, especially among medical workers.
According to Zhong, a top priority now should be for Wuhan – a city of 11 million people in the central province of Hubei – to curb the disease’s spread, in part by banning people with symptoms from leaving the city... [link to www.scmp.com (secure)]