Regional AlertMoH discovers the 12th case of monkeypox in a man in Phnom Penh February 18, 2024By MBDS Team15 Feb 2024. The Ministry of Health, issued a press release on the diagnosis of Mpox on another man in Phnom Penh as the 12th case. According to the results obtained from the National Institute of Public Health on February 13, 2024, there was one more case of Mpox (monkeypox) in a man living in Meanchey district, Phnom Penh. The patient is being treated at a hospital. Thus, a total of 12 cases of impact were detected.