Abstract
The COVID-19 pandemic intensified border control and disrupted international labor migration, but the complex consequences for migrant workers, including deepened marginalization and countervailing opportunities, have yet to receive sufficient scrutiny. Drawing on the case of Taiwan, this article examines how a host country reorganizes the multiple layers of physical and social borders for the purpose of sanitization, leading to an entanglement of mobilities and immobilities in migrant workers' lives. I illustrate how bordering practices have had uneven impacts on Filipino and Indonesian migrant workers across different circumstances of risk management. The findings highlight the geographic scales and temporal changes of shifting borders, which involve the negotiation of social membership for migrant workers in relation to the public health crisis and labor market shortage.