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The CHEC model was an innovative differentiated service delivery approach that addressed all three of the United Nations 90-90-90 HIV/AIDS targets.
The principles of CHEC have been implemented in all three CDC grants in collaboration with UMB. CHEC reached more than 200 government-run clinics in Zambia and involved more than 1,000 active community health workers. The health workers conducted over 1 million HIV tests, linked over 90% of those testing positive to health services, and delivered ARVs to over 2,000 stable-on-care patients.Based on CHEC's success, the Zambian Ministry of Health adopted the model as one of the differentiated service delivery model being implemented in Zambia. CHEC is also listed as a strategy in the 2018 Zambia Consolidated Guidelines for Treatment and Prevention of HIV.