Here is a 1-paragraph summary of the text: Twilio is working with public health departments and their tech partners around the globe to launch scalable contact tracing programs, which are critical for reopening economies and fighting COVID-19. The company's flexible cloud contact center platform, Twilio Flex, enables engagement with patients and contacts through outbound calls, SMS notifications, and surveys, allowing trained contact tracers to efficiently identify close contacts, notify them of potential exposure, and monitor their ongoing symptoms and isolation measures. With its ability to scale quickly, adapt to unique challenges, and prioritize privacy, Twilio is helping launch these initiatives and collaborate with public health departments to deliver critical public services.