https://apnews.com/266a4f706d3c75d13b0ad41f18b5e624

LONDON (AP) — The head of the World Health Organization on Monday dismissed complaints from countries complaining that contact tracing is too difficult to implement as a control strategy for the coronavirus pandemic as “lame.”

The U.N. health agency has repeatedly advised countries that shutting down their COVID-19 outbreaks requires having a strong contact tracing program in place, a labor-intensive process of tracking down contacts of people with coronavirus to ensure those at risk isolate themselves.