国产麻豆精品

Measles and rubella risk assessment tool

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What is the risk assessment tool?

The risk assessment tool detects areas not meeting the programmatic targets to sustain measles and rubella elimination. With these results, the country can prioritize the areas for intervention, to close the identified gaps in vaccination and epidemiological surveillance. It is recommended that the analysis unit of the risk assessment tool be the municipality, district or its equivalent. 

There are two versions of the tool: for outbreak and non-outbreak scenarios. The tool is available in the four 国产麻豆精品 languages: English, French, Portuguese, and Spanish.

How has the risk been calculated?

Overall, the risk was assessed as the sum of indicator scores that fall into five main categories: population immunity, surveillance quality, program delivery performance, threat probability assessment, and rapid response. Total risk points range from 0 to 100 points.  

The category of population immunity received the greatest proportion of total possible risk points (40%), followed by case-based surveillance quality (20%), program delivery performance (16%), threat probability assessment (12%), and rapid response to imported cases (12%).  

The tool assigns each municipality a risk of either low, medium, high, or very high based on the risk score. Table 1 shows the fixed cut-off points established for the risk classification of each municipality. The following risk matrix presents the categories, indicators, scoring, and formulas for the outbreak and non-outbreak scenarios. Risk categories are defined by the 25th, 50th, and 75th percentiles.  

 

What are the formats of the risk assessment tool?

The risk assessment tool is available in Excel and in R programming language. For both versions, the results are the same, displayed in a country report. 

The tool in the R language programming tool generates an interactive dashboard, as well as a quality assessment of the data compiled and entered into the tool. These two functionalities are not available in the Excel version.

For the R version, we developed a tutorial video comprised by eight modules. Each module is independent and there is no need to watch them consecutively.

You can find them on this site

What is needed to run the risk assessment tool?

To run the risk tool, the country will need the following three files: 

  1. Maps or shapefiles, ideally disaggregated by municipality; 

  1. Data on vaccination coverage, attrition rate, case-by-case surveillance, rapid response, among others (provided in an Excel file); and 

  1. An image of the country's flag 

If you have any doubts, questions or comments, please send an email to vpdrisktool@paho.org, We will get back to you as soon as possible (usually within 24 hours). 

Introduction to the tutorial

Module 1

Install R and RStudio

You will learn how to install R and RStudio on your computer, and to run the risk assessment tool.  

Module 2

Download the tool and organize the contents of the files

You will learn how to download the tool from the GitHub platform, become familiar with the content of the files and folders and organize them in a work folder.

Module 3

Configure the tool

You will learn how to configure the tool in R.

Module 4

Prepare the maps or shapefiles

You will learn how to navigate maps of your country, identify georeferencing codes (or geo codes), and link these maps to programmatic data.

Module 5

Collect country data in an Excel template

You will learn how to correctly fill in the Excel template with the programmatic data needed to run the risk analysis. 

Module 6

Assess data quality 

You will learn how to run a data quality program, interpret the most common quality errors and adequately correct them. 

Module 7

Run the risk tool and publishing the results online  

You will learn how to run the risk tool, publish the results online, and learn the most important outputs of the dashboard.  

Module 8

Update risk analysis in future years 

You will learn how to update the risk analysis annually, if the maps or shapefiles have not been modified. 

Begin this tutorial in the module you are not familiar with yet.