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Javier Limon Romero, the husband of Spanish nurse's aide Teresa Romero Ramos, looks out the window of an isolation ward at Madrid's Carlos III hospital on Friday. Seven people turned themselves in late Thursday to the Ebola isolation unit where Teresa Romero, the first person to contract Ebola outside Africa, lay gravely ill.

A hospital spokeswoman said there were now 14 people in the isolation unit on its sealed-off sixth floor, including Romero, her husband, and health workers who had cared for Romero since she was admitted on Monday.

Excalibur, the dog belonging to the Romeros, was euthanized Wednesday by authorities despite a global social media campaign to prevent its death.