The most obvious way is to curtail China outbound travel to those countries it deems mean.
More than 350,000 Chinese students are pursuing higher education in the U.S. and 10,000 American students are enrolled in academic programs in China.
In Australia, Chinese students comprise 31 percent of all international students, which totaled 525,054 in 2018.
China could restrict intakes from countries it deems uncooperative during the coronavirus or grant scholarships only to students from countries it favors.
Roy Graff, a China outbound tourism “evangelist” who helps Western destinations attract Chinese visitors, makes a good point that China has so far used the tourism card in political cases.