That is why it is important to find "patient zero"

The very term "patient zero" is problematic and is based on a misreading of the AIDS epidemic in the 80's.

The term has come to mean the first person to be infected with a particular disease, but is often used carelessly.

Sometimes for the first person in a new country with a virus or sometimes even in a workplace.

There can also be a stigma attached to the term.

- It is easy to blame a certain individual even if the virus is spread by chance.

It is important not to point out guilt, says Johan von Schreeb, professor of global disaster medicine.

At the same time, it is important to know how the virus originated to understand how to understand how to protect ourselves in the future.

- We need to know more about this and what the WHO group has as its mission, says Johan von Schreeb, who has worked with similar initiatives.