Leishmaniasis poses a significant public health problem in Kenya, where effective case management and treatment rely on accurate diagnosis. This review aims to summarise the research landscape on leishmaniasis diagnostics in Kenya and identify gaps.

This scoping review expands a previously published scoping review on leishmaniasis in Kenya to further analyse studies focusing on diagnostics. The field of diagnostics was chosen because of recent pushes for novel tools and because of the role timely diagnosis plays in disease elimination. A comprehensive search of PubMed, Embase via Embase.com, Web of Science Core Collection, the Cochrane Library, ClinicalTrials.gov, WHO ICTRP and the Pan African Clinical Trials Registry was conducted, covering studies up to 5 January 2024.

After dual, blind screening with conflict resolution by a third reviewer, 41 studies were included in the review. These studies examined a range of diagnostic tools; however most were assessed in one or few studies, and none evaluated real-time PCR. Additional gaps in the research landscape include a lack of diagnostics for cutaneous leishmaniasis and post-kala-azar dermal leishmaniasis in Kenya, outdated literature surrounding the Direct Agglutination Test and randomised trials for any diagnostic tool.

Future research should focus on solidifying the validity and reliability of diagnostic tools in the Kenyan context and updating previous work.

Vector control is imperative for eliminating leishmaniasis as a public health problem in Kenya. As elimination efforts expand in East Africa, it is crucial to understand the current research landscape. To address that need and identify gaps, a scoping review was conducted to characterise the landscape of leishmaniasis vector research in Kenya.

Building on a previously published scoping review by this team, we updated database searches in PubMed, Embase via Embase.com, Web of Science Core Collection, the Cochrane Library, ClinicalTrials.gov, WHO International Clinical Trials Registry Platform (ICTRP) and the Pan African Clinical Trials Registry to incorporate literature up to 4 January 2024 and focused on vector-related papers. Studies classified as ‘prevention’ in the original scoping review were included due to overlapping definitions.

A total of 95 studies were included in the analysis. Although a wide range of sandfly species have been documented, most of the research is outdated, having taken place 20–40 years ago. Existing studies are mostly epidemiological with little focus on basic and clinical research. There are also no studies on post-kala-azar dermal leishmaniasis despite its potential contribution to the disease transmission cycle. The geographical scope of the research is largely limited to traditional transmission foci with little attention to new disease hotspots such as North Eastern Kenya.

These research gaps need to be addressed to better inform the country’s leishmaniasis prevention and vector control strategy.

The COVID-19 pandemic dramatically affected schools. However, there are insufficient data on the chronic physical and mental health consequences of the pandemic in school workers.

To determine the prevalence and the functional and mental health impact of pandemic-related chronic health symptoms among school workers towards the end of the COVID-19 pandemic.

Cross-sectional analysis of health questionnaires and serology testing data (nucleocapsid, N antibodies) collected between January and April 2023, within a cohort of school workers.

Three large school districts (Vancouver, Richmond, Delta) in the Vancouver metropolitan area, Canada (representing 186 elementary and secondary schools in total).

Active school staff employed in these three school districts.

COVID-19 infection history by self-reported viral and/or nucleocapsid antibody testing.

Self-reported, new-onset pandemic-related chronic health symptoms that started within the past year, lasting at least 3 months, after a positive viral test among those with a known infection.

Of 1128 school staff enrolled from 185/186 (99.5%) schools, 1086 (96.3%) and 998 (88.5%) staff completed health questionnaires and serology testing, respectively. The N-seroprevalence adjusted for clustering by school and test sensitivity and specificity was 84.7% (95% Credible Interval (95% CrI): 79.2% to 91.8%) compared with 85.4% (95% CrI: 81.6% to 90.3%) in a community-matched sample of blood donors. Overall, 31.1% (95% CI: 28.4% to 34.0%) staff reported new-onset chronic symptoms. These symptoms were more frequently reported in staff with viral test-confirmed infections (38.0% (95% CI: 34.3% to 41.9%)) compared with those with positive serology who were unaware that they had COVID-19 (14.3% (95% CI: 7.6% to 23.6%); p

The pandemic had major health impacts on school workers. To our knowledge, this study is among the first to concurrently quantify a broad range of chronic physical and mental health impacts, highlighting the need for further research and targeted health programmes to address this significant burden.