Cross-sectional

Strategies for the ENdgame: Targeting Infections among Non-compliants in the Elimination of Lymphatic filariasis (SENTINEL)

Non-compliance is a primary barrier to attaining elimination goals. This study aims to utilize data captured in MDA registers to address non-compliance in the Ahanta West District of Ghana, which has been identified as a hotspot of LF transmission with >1% microfilaria (mf) prevalence after 15-16 rounds of MDA. On the basis of information identified in the register, this study proposes to deploy two strategies:

  1. Engage and Treat individuals who were ill, missed treatment, or were unable to participate during the last MDA, and
  2. Test and Treat for individuals who might be systemically non-compliant or afraid of adverse events. The use of MDA registers to assist in locating non-compliant individuals is novel and would provide valuable evidence for other programs and represents an alternative strategy for countries struggling with the end game. It may also help provide insight as to whether systematically non-compliant individuals truly serve as a reservoir for LF in areas designated as hotspots. Qualitative data collection will aid in understanding reasons for systematic non-compliance and may lead to changes in social mobilization strategies.
Countries: Ghana

Bringing near real-time data solutions to MDA in Ghana – progress towards elimination of Onchocerciasis

Ghana aims to eliminate onchocerciasis by 2025. Currently, all data points for mass drug administrations are collected on paper. Paper-based data collection does not allow for rapid evaluation and course correction throughout the implementation of the MDA. This study proposes a collaboration between the monitoring and evaluation division of the Ghana Health Service and the Clinical Informatics Research Unit at the University of Southampton. The study aims to answer the primary research question: Can community-driven electronic data collection, and near real-time provision of source data and interactive visualizations better support decision-makers on approaches to evaluating and managing MDAs for onchocerciasis?

Countries: Ghana
Diseases: Onchocerciasis

Improving outcome of future transmission assessment surveys and community compliance for MDA in 14 LF endemic districts of Uttar Pradesh.

The success of MDA programs requires effective planning, community engagement, and delivery by community drug distributors. This proposal seeks to assess barriers and facilitators of effective coverage. Using in depth interviews, focus group discussions, and surveys, they will investigate factors related to acceptance, availability, and accessibility of MDA from the perspectives of drug distributors, healthcare workers, community leaders, the NTD program, and community members. Using the findings from the formative phase, an intervention package will be developed and implemented during MDA, followed by an evaluation of the impact of the intervention on coverage.

This project is part of a larger series of four studies that use a mixed methods approach to understand why particular districts that have undergone 5+ years of MDA are failing or are likely to fail transmission assessment surveys (TAS). Other studies include 169.1D Ghana, 169.2U Burkina Faso, and 177U Nepal. This study in Uttar Pradesh also provides a second opportunity to deploy the rapid ethnographic approach that will be first tested in Nepal. Team members from HERD Nepal will be traveling to India to train their team on the technique and assist with roll out.

 

Countries: India

Does infection data add evidence to the understanding of trachoma prevalence in low endemic areas?

  1. To evaluate strategies for the elimination of trachoma by evaluating potential makers that show interruption of transmission of C. trachomatis
  2. To determine the prevalence of ocular chlamydial infection among children aged 1 – 9 years old in Mpwapwa and Kalambo District, Tanzania
  3. To determine the associated risk factors of ocular Chlamydia infection among children aged 1 – 9 years old in Mpwapwa and Kalambo District, Tanzania
  4. To determine the usability of antibody test to detect Chlamydia antigen pgp3 using lateral flow assay
  5. To examine the longevity of the antibody response to trachoma antigens in a high and low-prevalence setting
Countries: Tanzania
Diseases: Trachoma

Developing a surveillance framework for the post-elimination phase of the lymphatic filariasis programme in Bangladesh

  • Can the micro-stratification of lymphatic filariasis (LF) transmission assessment surveys positive case and clinical case data be used to identify, map and monitor transmission hotspots as part of an enhanced endgame surveillance strategy?
  • Can targeted molecular xenomonitoring detect ongoing transmission [to the same extent as human surveillance] in defined LF transmission hotspots?

 

Countries: Bangladesh

Reaching semi-nomadic groups using a test and treat (with doxycycline) strategy in a challenging onchocerciasis focus in West Region of Cameroon

  • Is mobile outreach with a doxycycline test and treat strategy (TTd) an effective strategy in reducing onchocerciasis prevalence and intensity of infection amongst hard-to-reach nomadic groups in Massangam health area (HA)?
  • What is the variation in prevalence of onchocerciasis and intensity of infection (community microfilaria load (CML)) in the different age and sex groups of hard-to-reach nomad community in the Massangam HA?
  • What was the coverage of ivermectin mass drug administration in the nomad population with respect to the last round of ivermectin MDA?
  • What is the cost of the mobile outreach strategy in this context, per person screened and treated?
Countries: Cameroon
Diseases: Onchocerciasis

TAS 3 positive case follow-up

Is there still LF transmission after successful TAS 3?

Countries: Nepal

Post-validation survey for the elimination of blinding trachoma to evaluate the effectiveness of a serological surveillance strategy in two provinces of Morocco

Conduct district-wide field trials of the Pgp3 lateral flow assay to measure the seroprevalence of antibodies against the Chlamydia trachomatis antigen Pgp3 in low-prevalence settings.

Countries: Morocco
Diseases: Trachoma

Ov16 and Wb123 ELISA for onchocerciasis elimination mapping (OEM) Ethiopia

Would the same programmatic decisions for Oncho Elimination Mapping be made based off of the Ov16 RDT results as compared to the Ov16 SD ELISA results in 7 woredas included in OEM in Ethiopia?

Countries: Ethiopia

Evaluation of elimination of onchocerciasis in Malawi using the OV-16 serologic test

Evaluate the current status of transmission of onchocerciasis in a hyperendemic area treated for many years and in a hypoendemic area treated for lymphatic filariasis for 5 years using the Ov16 ELISA and supplemented by entomology results from a previous study

Countries: Malawi
Diseases: Onchocerciasis

Pages