The head of the World Health Organization arrived in Spain Saturday to await the arrival of the doomed rat virus-stricken cruise ship . The vessel will not be allowed to dock on the Canary Islands when it approaches Sunday — and instead will be left floating just offshore, as hazmat-clad health teams swarm aboard to evacuate the doomed passengers and crew back to two dozen countries. It comes after a dramatic week-long showdown between the conservative local leader and Spain’s socialist prime minister, over the decision to follow orders from the World Health Organization to let the cursed ship in. Crew members of the MV Hondius wait to speak to epidemiologists. AP The MV Hondius is estimated to arrive near the port of Granadilla, on the island of Tenerife, “in the early hours of Sunday,” according to the latest update from Oceanwide Expeditions Saturday.…