Welcome to the Vaccines and Immunizations website.
Skip directly to the search box, or content.

Investigating clusters of group A streptococcal disease group A streptococcal header

    INTRODUCTION START

INVESTIGATION

USING

CALCULATOR

CALCULATOR FAQs
             
   

Calculator to estimate expected number of invasive group A streptococcus cases in county or region

     
   

Fill in the appropriate data to get the results:

         

  (Indicates a Required Field)

     
   

 


[Cases in current month should be in the range of 0-50]

  *
   

 


[Cases in previous month should be in the range of 0-50]

  *
   

 

(oF)

click here for weather data in your area; 1)click on your state 2) select table 3) select year
[Average temperature in previous month should be in the range of 0.0-100.0]

  *
   

 

(minimum 250,000; counties may be combined)

click here for population data for your region
[Population in the region should be greater than 249000]

  *
   

 

(square miles)

click here and scroll for census data
[The Region size for the population should be in the range of 50 - 10000]

  *
   

 

click here for census data. Why do we ask? See FAQ's
[Percentage of African American should be in the range of 0 - 100]

  *
   

 

click here and find "Persons below poverty line, percent"
[Percentage of population below povertyline should be in the range of 0 - 100]

  *
   

 

May be left blank if unknown; a zero entry is different from a blank
[Percentage of HIV Positive cases should be in the range of 0 - 100]

 
   

 

May be left blank if unknown; a zero entry is different from a blank
[Percentage IVDU cases should be in the range of 0 - 100]

 
         
   

 
   

              

  Back to Home

 
   

 
   

Legal disclaimer: This website is intended as a tool to assist with a group A streptococcal investigation. A statistically significant finding may reflect that further investigation may be warranted; it should not be the sole indicator to determine a cluster or outbreak situation. Questions may be directed to your state health department or to the CDC Respiratory Diseases Branch at (404) 639-2215

   

   

This page last modified on July 4, 2008
Content last reviewed on December 10, 2007
Content Source: National Center for Immunizations and Respiratory Diseases