A ping-pong infection occurred at school, causing many students to take time off.

Oral infection is when pathogens enter the body through food or drink.

Prevention of infectious diseases is important with hand washing and wearing masks.

Due to the increase in community-acquired infections, please thoroughly wash your hands and wear masks.

Please refrain from going out because community-acquired infections are spreading rapidly.

It is important to identify the source of infection.

Due to the impact of the Wuhan virus, the whole world is in a difficult situation.

Ebola virus disease is highly infectious and can cause severe symptoms.

The prevention of venereal diseases is most important in safe sexual behavior.

By regularly checking the key performance indicators, you can understand the performance of the company and devise improvement measures.