Maybe, but I read a report a few days ago that at least one Chinese doctor was failing to show up at a PRC constructed hospital in East Africa. I would consider watching Africa. However, I doubt that there would be the money to pay for tests of PRC people returning to PRC investments in Africa. . Chinese Labor data overview The number of Chinese workers in Africa by the end of 2017 was 202,689, according to official Chinese sources. In 2017, the top 5 countries with Chinese workers are Algeria, Angola, Nigeria, Ethiopia, and Zambia. These 5 countries accounted for 57% of all Chinese workers in Africa at the end of 2017. 27 African countries allow PRC people to enter without visas.