Some 388 inmates at two prisons in Phitsanulok were found to have signs of tuberculosis, public health officials found after they performed lung x-rays.
Doctor Rattaphum Champhunot, assistant chief public health officer for Phitsanulok, said the latest x-ray examinations were performed early this month.
At Phitsanulok Prison, 2,959 inmates received the x-ray and 203 of them were found to have irregularities in their lungs with 159 suspected of having TB, while 44 others had other irregularities.
He said 3,287 inmates at the Phitsanulok Central Prison received the x-rays and 283 were found to have problems. Of the 283, 229 were suspected of having TB and the rest with other irregularities.
He said the Phitsanulok Public Health Office will take all necessary measures to control the outbreak of TB in the two prisons.
He said the number of TB patients in the province have been recorded at 722 patients in 2015, 709 patients in 2017, and 875 patients in 2017.
The successful rate of curing was 84.5 per cent, 88.1 per cent and 87.0 per cent in the three years respectively.