Regional
monitoring
According to the Interim Policy Guidelines for Regional Communicable Disease Surveillance System for CAREC member countries (Feb 2005), a regional communicable disease surveillance system should be evaluated every three years by CAREC representatives, member countries and stakeholders and/or partners. This evaluation will include a review and rationalisation of the syndromes and diseases under surveillance.
Each national communicable disease surveillance system should be evaluated every six to seven years. CAREC is responsible for co-ordinating these evaluations, but they will be conducted in collaboration with countries and partners. All evaluations should aim to describe the system and assess the three surveillance attributes discussed in this unit. CAREC is responsible for the development of standard evaluation tools and indicators for the region.
Guidance from
CAREC
Currently, many CAREC member countries have paper-based systems, but as countries have resources to switch, databases will be used to track cases and develop reports.
In preliminary planning discussions, the intention is that the database will include calculations and reports, such as a Timeliness Report, Completeness Report and an Accuracy Report. Additional reports will be needed. For example:
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an HIV case-reporting database will include everyone (by case ID, not name) reported with HIV
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a patient monitoring database will record how many are on treatment.
If the two databases are compared, we will have a list of who is not on treatment, making it relatively easy to compare by case ID if that patient should be in treatment. The treatment determination is based on clinical stage and CD4 count. Therefore, some patients should not be in treatment yet.
Class
discussion
Think about the surveillance methods currently used in your district/country and answer the following questions.
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What methods have been used to measure completeness of reporting?
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What methods can you implement that would provide a better estimate of the completeness of reporting?
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What are the limitations to the methods previously used and those that might be undertaken in the future?
Summary
You need to evaluate your HIV/AIDS surveillance system to make sure it remains effective as the epidemic changes over time. The evaluation process includes six tasks: engaging stakeholders, describing the surveillance system, focusing the evaluation design, gathering evidence on the system’s performance, stating conclusions, and recommendations and share lessons learned.
Unit 5 Exercises
Warm-up
review
Take a few minutes now to look back at your answers for the warm-up questions at the beginning of the unit. Make any changes you want.
Small group
discussion
Get into small groups by country, region or province to discuss these questions.
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Has there been a formal evaluation of the HIV/AIDS surveillance system in your country? If so, which parts of the surveillance system were evaluated?
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What was the result of the evaluation? What problems were identified?
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How were the results shared with district surveillance staff and clinics?
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How was the surveillance system modified as a result of the evaluation?
Apply what
you’ve learned/
case study
Try this case study. We will discuss your answers in class.
Inyo County is in the coastal area of Country X and has the country’s major port city. A British university has been conducting studies of commercial sex workers in the port city for nearly a decade. For the last five years, they have been conducting serial sero-prevalence surveys for HIV and syphilis.
You are the National Surveillance Officer for Inyo County. You are asked by the Ministry to evaluate these special studies to determine if the Ministry should take over sponsorship of the studies and include them in the provincial sentinel surveillance system.
Now answer the questions below. Look back in the unit for more information if you wish.
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How would you start your evaluation?
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On what would you focus in your evaluation?
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What criteria would you use to assess the performance of the system?
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What would you recommend?
Unit 6 (other than HIV)
Section 6.1 Overview of STI Surveillance
What this unit
is about
This unit gives an overview of the components of sexually transmitted infection (STI) surveillance and explains how the data from STI surveillance can be used.
Warm-up
questions
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True or false? Some elements of an STI surveillance system are more important for HIV surveillance activities. Others are more important for STI control programme activities.
True False
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True or false? STI surveillance data can serve as an indicator of trends in HIV risk behaviours.
True False
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True or false? Aetiologic reporting of syphilis (by stage), gonorrhoea and chlamydia is considered a basic surveillance activity in the Caribbean.
True False
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Which of the following is not a component of an STI surveillance system?
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STI universal case reporting
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STI sentinel surveillance systems
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STI testing and treatment
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STI prevalence assessment and monitoring
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True or false? In generalised HIV epidemics, prevalence assessments should include monitoring gonorrhoea and chlamydia.
True False
Warm-up questions, continued
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True or false? An STI surveillance system includes conditions that are newly acquired, as well as those that represent past infections.
True False
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In ___________________ reporting, STI cases are reported by the specific microbial organism that caused the STI, while in syndromic reporting, STI cases are reported by the clinical syndrome with which the patient presents.
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