I found an insect in the park.

Don't forget to bring insect repellent before going camping.

The effect of this medicine is to alleviate the symptoms of a cold.

Hand washing and wearing masks are important for the prevention of COVID-19.

Zoonosis is a disease that spreads from animals to humans, or vice versa.

The number of people infected with the new coronavirus is rapidly increasing.

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

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.

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