Recentry,I often hear that norovirus(ノロウイルス) is going around on the news. Do you know what ノロウイルス is? I didn't know about it. So I research about it.
At first,the main sympton of ノロウイルス is vomiting,stomachavhe,and fever. It feel much like the sympton of a common cold.
Next, the main route of infection is eating contaminated foods. Especially,bivalves(二枚貝) such as oysters are denger. ノロウイルス doesn't soread through the air to other people.
Lastly,the prevention is washing your hands gently first. And when you eat oysters and other bivalves, you should heat up them.
If you are under the weather, I advise you to go to hospital at once.