The Centers for Disease Control and Prevention have issued a warning about a so-called fungal “superbug” that has sickened more than 600 people across the world.

Officials say that Candida auris, a type of yeast, has been causing severe illness in hospitalized patients.

The CDC says in some cases the yeast can enter the patient’s bloodstream and spread throughout the body, causing serious infection.

They say Candida auris poses a serious global health threat because it is resistant to multiple anti-fungal drugs used to treat infections.

Officials say that New Jersey is dealing with 104 cases of the illness – the third-most in the United States. New York has the most confirmed and probable cases at 304 instances.

More information can be found on the CDC’s website.