Using COVID-19 Test, Trace, and Isolate Systems Effectively in Middle-Income Countries

“Effective test, trace, and isolate systems have featured alongside other measures in a number of high-income countries. Test. trace, and isolate systems may be particularly valuable in middle-income countries, where social and economic circumstances do not support large and long-term lockdowns. But investing in such systems in middle-income countries comes with a number of limitations and opportunity costs.”