CDC

Ov16 AP ELISA comparison in Cameroon

How does the performance of the AP ELISA compare to the Ov16 SD ELISA, when conducted in a country lab?

Countries: Cameroon
Diseases: Onchocerciasis

Production of a New Dual Antigen Test Strip as a Tool to Support Epidemiologic Assessments of Onchocerciasis

How does the performance of the new Ov16/Ov3261 test strip compare to that of the SD Ov16 RDT and the SD Ov16 ELISA?

Diseases: Onchocerciasis

Addressing the Mental Health of Persons Living with Lymphatic Filariasis in Léogâne, Haiti: Effectiveness of a Chronic Disease Self-Management Program

Intervention: The primary aim of this project is to determine if the introduction of a Chronic Disease Self-Management curriculum into existing Hope Clubs in Léogâne, Haiti will result in improvements in symptoms of depression, self-rated health, chronic disease self-efficacy, social support, and disability.

Formative: What are the barriers that prevent people with LF from participating in Hope Clubs?

Countries: Haiti

Processing Ov16 ELISA for Oncho Elimination Mapping

Would the same programmatic decisions for Oncho Elimination Mapping be made based off of the Ov16 rapid diagnostic test results as compared to the Ov16 SD ELISA results?

Countries: Kenya | Malawi | Burundi
Diseases: Onchocerciasis

Lymphatic Filariasis Positive-Case Follow-up After TAS 2 in Haiti

To identify the sampling strategy for positive case follow-up after TAS 2 and TAS 3 that optimizes the chances of correctly identifying evidence of ongoing transmission, while saving program resources.

Countries: Haiti

Development of Tools to Re-Orient Social Mobilization Strategies to Close the MDA Coverage-Compliance Gap

To improve compliance and reduce the coverage-compliance gap in mass drug administration through enhanced and tailored social mobilization.

Countries: Indonesia

District Mapping Onchocerciasis and Lymphatic Filariasis in Ethiopia

To assess the programmatic feasibility of and determine the most appropriate age group and sampling strategy for an oncho mapping survey for ivermectin-naïve areas

Countries: Ethiopia

Lymphatic filariasis positive-case follow-up after TAS 2 or TAS 3 in Philippines

To identify the sampling strategy for positive case follow-up after TAS 2 and TAS 3 that optimizes the chances of correctly identifying evidence of ongoing transmission, while saving program resources.

Countries: Philippines

Testing New RDT Formats to Improve Wb123 Test Sensitivity

To test alternative rapid diagnostic test (RDT) formats for the Wb123 rapid test. In field trials, the current test format was less sensitive that FTS in post-MDA settings whereas alternative Wb123 test formats (ELISA, multiplex) were more sensitive. Our group uses new detection systems, based on nanoshells, to improve RDT performance. 

Field Validation of Wb123 monoplex, Haiti

To compare the performance of antigen (FTS) and antibody (Wb123 monoplex) tools in programmatic settings (TAS).

Preliminary Findings and Lessons Learned

The goal of this study is to compare the performance of antigen (FTS) and antibody (Wb123 monoplex, Wb123 ELISA, multiplex) tools in programmatic settings (TAS). In order to strengthen the existing TAS platform we need to better understand which diagnostic indicator(s) are best-suited for making programmatic decisions. The TAS was conducted in Trou de Nord and Plaisance EUs.  Both EUs passed the TAS, but positive FTS were identified (4 and 2, respectively). However the Wb123 RDT found ZERO positive children, of the over 2000 tested. While the Wb123 ELISA testing is still ongoing, this initial result agrees with findings from other studies, all of which suggest that the Wb123 RDT is too insensitive a tool to be of programmatic use.

Countries: Haiti

Pages