The health ministry on Tuesday rolled out a basic set of policies on handling COVID-19 infections as the government tries desperately to curb the spread of the disease within the limited window available.

The move came amid apprehension over the growing spike in domestic cases and their deepening severity, with reports emerging Tuesday of the fourth fatality among those previously aboard the Diamond Princess cruise ship.

The nation's total tally of infected people has risen day by day, widening as of Tuesday to 17 prefectures.