China confirms human-to-human transmission of coronavirus

Authorities on alert ahead of lunar new year holiday as 139 new cases of strain detected

China's National Health Commission has confirmed human-to-human transmission of a mysterious Sars-like virus that has spread across the country and fuelled anxiety about the prospect of a major outbreak as millions begin travelling for lunar new year celebrations.

Zhong Nanshan, a respiratory expert and head of the health commission team investigating the outbreak, confirmed that two cases of infection in China's Guangdong province had been caused by human-to-human transmission and medical staff had been infected, China's official Xinhua news agency said on Monday.