He described the scenery in detail.

I was surprised by his solemn attitude.

I was surprised by his solemn attitude.

Minamata disease is a serious pollution-related illness that occurred in Japan.

His machine is moving at a speed of 5 meters per second.

She was diagnosed with Addison's disease.

My mother nursed me when I caught a cold.

This pathogen is very dangerous to humans.

Gonorrhea is one of the sexually transmitted diseases, and appropriate treatment is necessary.

This virus has the ability to infect humans.