Coronaviruses are a family of RNA viruses that typically cause mild respiratory disease in humans. A novel coronavirus (COVID-19) was identified in Wuhan, China in December 2019.

As of the 15th of February, 2020, the location outside of mainland China with the largest number of confirmed COVID-2019 cases is the "Diamond Princess" cruise ship, currently docked in the Port of Yokohama, Japan. Johns Hopkins interactive web-based dashboard currently reports that 218 cases of COVID-2019 can be traced to the cruise ship.

How many total (cumulative) confirmed total cases of COVID-2019 be reported in the location with the most cases outside of Mainland China, on March the 27th at 10 AM GMT, according to Johns Hopkins?

Johns Hopkins reports daily cumulative case numbers, which is the sum of all cases that have occurred on and before the most recent update. This includes all recovered and deceased cases.

In case Johns Hopkins interactive web-based dashboard no longer reports the relevant numbers, figured made available by the WHO or CDC may be consulted. "Location" is defined in line with Johns Hopkins tracker, which roughly corresponds to 'nation with its own government' (with a distinction between Hong Kong and Mainland China), or cruise ships.