Surveillance

Investigation of communities at increased risk of trachoma recrudescence & a model post-elimination surveillance strategy

Primary research question

Is there evidence of on-going or recent ocular Ct transmission in communities of northern Ghana felt to be at increased risk of recrudescence, at least two years since they were identified with Ct infection and or high anti-Pgp3 seroprevalence during pre-validation trachoma surveillance surveys?

Secondary research questions

What is the geographical extent of the boundaries of any persistent Ct infection and on-going transmission in the post-elimination setting?

What is the community-level (anti-Pgp3) prevalence of seropositivity for the multiplex bead array (MBA) (and possibly ELISA) as compared to the lateral flow assay (LFA)?

Countries: Ghana
Diseases: Trachoma

Mapping the Potential Risk of Mycetoma Infection in Sudan and South Sudan Using Ecological Niche Modeling

What is the potential distribution of mycetoma in Sudan and South Sudan? What are the most important factors associated with the spatial distriutional patterns of disease cases in Both countries. 

 

Countries: Sudan
Diseases: Mycetoma

Follow-up of positive cases of lymphatic filariasis after Transmission Assessment Survey (TAS) 2 and TAS 3 in Burkina Faso

Identify the sampling strategy for tracking positive cases after TAS 2 and TAS 3 that optimizes the chances of correctly identifying evidence of active transmission, while saving program resources

Countries: Burkina Faso

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 a geostatistical mapping tool to improve decision-making for Loa loa and LF

Can serological markers for NTDs (particularly Loa loa and Lymphatic filariasis) be incorporated into geostatistical maps and used to guide program decisions around treatment and surveillance?

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

To investigate the utility of an antibody test as a tool for surveillance during the elimination phase of trachoma programmes

Countries: Tanzania
Diseases: Trachoma

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

Does infection data add anything to our understanding of trachoma prevalence in low endemic areas?

To investigate prevalence of ocular chlamydial infection and associated risk factors in children aged 1-9 year in Manyoni district

Countries: Tanzania
Diseases: Trachoma

Development of a molecular diagnostic method for soil-transmitted helminthiases: Epidemiological implications for disease control

To improve STH detection by developing a reliable and easy to perform molecular diagnostic test for epidemiological surveillance and post-elimination monitoring of STH

Countries: Cameroon

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