This is an overview of World Health Organization training provided in 2021, with links.

The training touches on the importance of testing and how to prioritize who must be tested within available resources. 

Guidance includes prioritizing symptomatic patients, those who are high-risk owing to COVID-19 exposure and people with frequent exposure to possible COVID-19 cases.

It also links discussions on lessons learned from the field in Ghana and the Democratic Republic of Congo. In the DRC, a successful rollout of rapid antigen testing, for example, saw more people tested, with rapid tests, within 24 hours than were tested within 3 days with PCR tests.