International cooperation to some extent will force China to restrain its activities in the South China Sea.

The newest case drives up the infection caseload in Hanoi to 7.

Since late January 2020, health agencies of the two countries have shared information and data to combat Covid-19.

The newly-identified cases drove the infection in Hanoi to 53 and Ho Chi Minh City to 41.

Half of the newly-detected cases on March 28 are linked to Bach Mai Hospital, the largest hospital in Vietnam.