The health ministry advised children, seniors and individuals with heart or lung diseases to stay indoors and avoid sustained and high-intensity outdoor activities.

The Drug Administration of Vietnam requested provincial and municipal departments of health to find drugs supply and meet treatment needs.

The Chinese health ministry has taken measures to control the outbreak and conducted more testing to identify the specific cause.

Based on the evolution of the epidemic and weather conditions in each locality, each local government should decide whether students should go back to school or take a longer break.

Apart from the only case detected on January 17, no other infection has been found in Vietnam's south central province of Khanh Hoa.