"In Thailand, cash is the main source of transactions. People still carry cash with them to buy food and items," said Yuttana Yimgarund, director-general of the department.
"The virus can stick onto old coins for 5-7 days and with banknotes for 9 days," said Yuttana, adding that they will use ultraviolet light at 200 degrees Celsius to sanitise the old coins and banknotes.
