The patient is on the remote Atlantic island of Tristan da Cunha, which was visited by the cruise ship in April.

Iran accuses the US of violating the truce, alleging it targeted an oil tanker and carried out attacks on coastal areas.

A third woman who also returned to Australia from Syria was charged with joining a terrorist organisation.

Broadcasters in the two countries have yet to reach deals with Fifa, just weeks before the tournament is due to start.