HO CHI MINH, Oct. 31 (Xinhua) -- Vietnam on Monday reported additional 12 Zika patients, increasing the total in the country to 23.

All the new cases are from Ho Chi Minh City, lifting the total in the city to 17, the municipal Health Department said, adding that people can now go to 30 hospitals in the city to have their blood tested for Zika virus free of charge.

Other patients are from Phu Yen, Khanh Hoa, Binh Duong, Long An and Dak Lak provinces.