When fully dedicated to missile defence, some ships already devote 40% of their power to electrical systems, says Rear-Admiral Philip Cullom, in charge of the navy's fleet readiness.

Rear Admiral Anne Schuchat, the Center for Disease Control's interim science and public health deputy director, said there are more effective ways to curb the spread of the virus.

Rear Admiral Cheong Kwok Chien from the Republic of Singapore Navy arrived at Shanghai by plane on the morning of that day to participate in the visiting activities.