Mission accomplished: Over 4,000 military medical workers leave Wuhan

China has been strengthening control and prevention measures at airports and border cities to contain the threat of imported COVID-19 infections. As the threat of imported cases grows, Chinese customs offices, airlines, and airports have been adopting stricter measures to prevent possible cross-border infections. Health workers are collecting throat swabs for nucleic acid tests and blood samples for antibody tests. Subscribe to us on YouTube: Download our APP on Apple Store (iOS): ht