News Headlines Article

‘Disease X’: The Mystery Malady That Could One Day Kill Millions

A new global threat dubbed “Disease X” has been added to the World Health Organization’s (WHO) list of maladies that could cause a worldwide epidemic-even though it doesn’t actually exist yet.

The mysterious malady is meant to represent a “known unknown” that could be created by biological mutation in the future, WHO said on its website.

The disease joined a list that includes the Ebola virus, Respiratory Syndrome (SARS,) Zika virus and Rift Valley fever (RVF), after an annual review by WHO.

“Disease X represents the knowledge that a serious international epidemic could be caused by a pathogen currently unknown to cause human disease,” WHO said on its website.