Prime Minister Tun Dr Mahathir Mohamad said the situation of novel coronavirus (2019-nCoV) in Malaysia has not reached a critical stage that tourism must be stopped.<br /><br />He was responding to an online petition urging the government to ban Chinese nationals from entering the country.<br /><br />Dr Mahathir however added that the authorities will keep on checking on tourists and those showing even the slightest symptom of coronavirus infection will be immediately quarantined.