I was bitten by a biting midge, and it's itchy.

In this area, you can see a lot of gaganbo (a type of large mosquito).

A cranefly is perched on the window.

In summer nights, mosquito repellent is necessary.

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

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

The infectious capacity of this virus is very strong.

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.

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