Passengers scan QR code of tracking app on bus in Bangkok, Thailand

Passengers take a bus in Bangkok, Thailand, June 11, 2020. Bus passengers in Thailand are required to check-in via a government tracking app every time they travel starting on Thursday. The mobile phone QR scanning system has been used on buses as a measure to prevent a further outbreak of the COVID-19 pandemic. (Xinua/Rachen Sageamsak)