Crew members wearing face shield perform their duties as food server aboard the SuperStar Gemini cruise ship berthed at Singapore's Marina Bay Cruise Centre on May 23, 2020. SuperStar Gemini cruise ship together with SuperStar Aquarius cruise ship, are used as temporary dormitory for migrant workers who have recovered from COVID-19 infection. (Photos: Xinhua)

Migrant workers enjoy their outdoor time aboard the SuperStar Gemini cruise ship berthed at Singapore's Marina Bay Cruise Centre on May 23, 2020. SuperStar Gemini cruise ship together with SuperStar Aquarius cruise ship, are used as temporary dormitory for migrant workers who have recovered from COVID-19 infection.

Two health workers perform their work in the medical centre at Singapore's Marina Bay Cruise Centre on May 23, 2020. SuperStar Gemini cruise ship together with SuperStar Aquarius cruise ship, are used as temporary dormitory for migrant workers who have recovered from COVID-19 infection.