Dr Darin Areechokchai, an expert at the Department of Diseases Control’s Bureau of Epidemiology, said that lab test results since June 30 had confirmed 11 Zika cases in Phichit although none involved pregnant women.

She also said that since this January, Thailand reported 81 Zika patients, four of whom were pregnant women, in 16 provinces.

Phichit Governor Wirasak Wichitsaengsri said there were also 16 suspected cases and 33 close-contact persons were being monitored, including nine pregnant women. They were being tested and results should be known soon. No patient names or details were released.

He urged the public not to be alarmed and said that Phichit was not the only area affected. “Chaiyaphum, Ubon Ratchathani and Nong Khai provinces also had Zika cases before,” he said.

He said people with flu-like or dengue fever-like symptoms (persistent fever, rash, joint and muscle pain) should see a doctor who would then get blood tests in suspicious cases.

Provincial public health office personnel and health volunteers have fumigated 667 homes in the affected areas to kill mosquitoes and surveyed to destroy mosquito larva at 422 homes, he said.