Disease X: Why should we watch out for potential pandemic '20 times deadlier' than Covid?

To the uninitiated, the name 'Disease X' was adopted by WHO a few years ago, to "indicate an unknown pathogen that can cause a serious international epidemic."

To the uninitiated, the name 'Disease X' was adopted by WHO a few years ago, to "indicate an unknown pathogen that can cause a serious international epidemic."

To the uninitiated, the name 'Disease X' was adopted by WHO a few years ago, to "indicate an unknown pathogen that can cause a serious international epidemic."