Cambodia's last patient with the new coronavirus has recovered and left hospital, leaving the Southeast Asian country with zero cases, the health ministry said on Saturday, while urging continued vigilance, Reuters reported. Cambodia has reported 122 cases of the virus that causes COVID-19 and no deaths from the disease since it emerged in China and started spreading around the world, infecting more than 4.5 million and killing about 300,000 since January. Cambodia's last reported new case was on April 12. A total of 14,684 tests have been done since January, the ministry said.