GENEVA, Switzerland (AFP) — The World Health Organization (WHO) said Thursday there were now five confirmed hantavirus cases from the Atlantic cruise ship outbreak, with three more suspected — and warned more cases were possible.

The WHO said it expected the outbreak on the MV Hondius, currently sailing from Cape Verde to the Spanish island of Tenerife, to be limited, so long as public health measures were properly implemented.

“So far, eight cases have been reported, including three deaths. Five of the eight cases have been confirmed as hantavirus, and the other three are suspected,” WHO Chief Tedros Adhanom Ghebreyesus said.