Proposal Summary


Investigator(s)

WHO Technical Officer Katrin Bote
WHO SEARO -Neglected Tropical Diseases
Katrin Bote Mail
Principal Investigator Deena Shrestha
Center for Health and Disease Studies Nepal, 14, Kathmandu, Nepal
Deena Shrestha Mail


Title(s) and abstract

Scientific title LF Morbidity based Hotspot Identification Survey: A Way towards Endgame
Public title LF Morbidity based Hotspot Identification Survey: A Way towards Endgame
 
Background significant public health challenge in numerous tropical regions, ranking as the second leading infectious cause of disability worldwide. Although there has been substantial progress, the target for LF elimination in Nepal has been postponed to 2030.
Objectives This research project is focused on identifying LF hotspots and implementing treatment programs, addressing existing method limitations. The study aims to confirm these hotspots, evaluate the specificity of diagnostics, and compare different diagnostic techniques to enhance LF control.
Study Methods The study will involve a descriptive cross-sectional quantitative approach conducted in Sunsari and Saptari districts of Nepal, involving around 1500 participants. The screening plan involves assessing 300 individuals in each potential hotspot, and randomly 5 potential hotspots with ≥10 LF morbidities will be taken as study sites. To confirm the presence of an ongoing hotspot microfilaria levels of ≥1% in any enumeration area, village, or former administrative ward will be used. Additionally, socio-demographic and environmental risk factors will be collected through structured interviews, including data on age, sex, residency length, clinical condition, history of mass drug administration, and use of vector control measures. Household information, such as household size and infrastructure, will also be collected. To assess diagnostic specificity, 5% of negative samples will be randomly selected for PCR testing.
Expected outcomes and use of results The proposed survey enables targeting interventions, hotspot mapping for strategic resource allocation, and monitoring the impact. Thus, this survey can be considered a crucial component of the global effort to eliminate LF as a public health threat. In short, this confirmatory hotspot survey in hotspots is expected to prevent resurgence of transmission towards the endgame strategy. Evidence generated by this study will be useful to revise national guidelines on LF elimination and guide program managers to conduct similar studies in other districts.
 
Keywords Lymphatic filariasis, hotspot, mapping, neglected tropical diseases


Research Details

Student research No
Start Date 01-Aug-2024
End Date 31-Jul-2025
Key Implementing Institution Center for Health and Disease Studies Nepal
Multi-country research No
Nationwide research No
  Nepal
Research Domain(s) Communicable Disease Research
Research field(s) Infectious Disease
Involves human subjects Yes
  Population-Based Survey
Data Collection Primary and secondary data
Proposal reviewed by other Committee No