Evaluation of the Zimbabwe HIV Case Surveillance Pilot Program, 2019 (Preprint)

BACKGROUND Zimbabwe has a high burden of HIV, with an estimated 1.3 million people living with the virus and an HIV prevalence and incidence of 13.8% and 0.48%, respectively (2017 Spectrum estimates). In 2017, the Zimbabwe Ministry of Health and Child Care (MOHCC) developed and implemented a pilot of HIV case surveillance (CS) based on the 2017 World Health Organisation (WHO) Person-centred HIV patient monitoring (PM) and case surveillance guidelines. As the case surveillance guidelines were new, lessons learned from field implementation experiences were intended to inform the development of HIV case surveillance implementation guidance and tools. OBJECTIVE At the end of the pilot phase, the Ministry of Health and Child Care (MOHCC) commissioned an evaluation to inform further steps. METHODS Two districts, Umzingwane in Matabeleland South Province and Mutare in Manicaland Province were commissioned to run the CS pilot from August 2017 to December 2018. During this period, 1602 people living with HIV (PLHIV) newly diagnosed with HIV were reported in the CS system, while other HIV sentinel events, including ART initiation and first viral load test, were routinely reported. A mixed-methods cross-sectional study of stakeholders and health facility staff was used to assess the following CS system features: design and operations, performance, usefulness, sustainability and scalability. A total of 13 stakeholders responded to an online questionnaire, while 33 health facility respondents were interviewed in 11 health facilities in the two pilot districts. RESULTS The HIV CS system was adequately designed for Zimbabwe’s context, integrated within existing health information systems at the facility level. However, the training was minimal, and an opportunity to train the data entry clerks in data analysis was missed. The system performed well in terms of surveillance and informatics attributes. However, viral load test results return was a significant problem. The system was used at the health facility level to track the HIV positive clients in their catchment area; all facilities that were visited were aware of what is happening to their clients. Almost all respondents believed that the country can roll out the HIV CS system to all facilities with partner support. CONCLUSIONS The HIV CS system was found useful at the health facility level and should be rolled out in a phased manner, beginning with all facilities in Manicaland and Matabeleland South provinces. An electronic link needs to be made between the health facilities and the laboratory to reduce viral load test results delays. Lessons learned from the provincial roll out can be used for a nationwide scale-up.