The Department of Disease Control said lab results confirmed the diagnosis.
Dr Opas Karnkawinpong, director-general of the Department of Disease Control, on Sunday said that lab results confirmed the cases were not monkeypox.
As of yet no monkeypox infection has been found in the country.
The three people suspected of having contracted monkeypox are receiving treatment
Dr Opas said anyone with a condition similar to monkeypox infection will be examined for the disease. Health control measures at airports likewise will include enhanced screening procedures.
"However, initial information shows that monkeypox infection does not spread as easily as Covid-19. Transmission requires close interaction with a symptomatic individual," Dr Opas said.
Meanwhile, Dr Suprakit Jiraratwattana of the Medical Services Department's Dermatology Institute said monkeypox can be transmitted by the aerosol route within one metre.
Normally monkeypox patients can recover within 2-4 weeks, he said.
Dr Suprakit said studies of monkeypox and herpes show that the diseases originate from the same virus family.
He added that despite the reopening of the country “protective measures including social distancing, wearing a face mask and screening are still required”.
