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Investigating clusters
of group A streptococcal disease
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INTRODUCTION |
START
INVESTIGATION |
USING
CALCULATOR |
CALCULATOR |
FAQs |
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Calculator to estimate expected number of invasive group A streptococcus
cases in county or region |
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Fill in the
appropriate data to get the results: |
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* (Indicates a Required Field) |
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Current month |
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Number of invasive GAS cases
in current month (observed)
[Cases in current month should be in the range of 0-50] |
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Number of invasive GAS cases
in previous month
[Cases in previous month should be in the range of 0-50] |
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Mean temperature in previous month(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] |
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County or region population (minimum
250,000; counties may be combined)
click here for population data for your region
[Population in the region should be greater than 249000] |
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Region size (square miles)
click here and scroll for census data
[The Region size for the population should be in the range of 50 - 10000] |
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Black or African American
persons, percent
click
here
for census data.
Why do we ask? See FAQ's
[Percentage of African American should be in the range of 0 - 100] |
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Persons below poverty line,
percent
click here and find "Persons below poverty line, percent"
[Percentage of population below povertyline should be in the range of 0 - 100] |
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Estimated % of GAS cases who are HIV+ (historically)
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] |
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Estimated % of GAS cases who are
injection drug users (historically)
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] |
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Back to Home |
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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 |
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This page last modified on July 4, 2008
Content last reviewed on December 10, 2007
Content Source: National Center for Immunizations and Respiratory Diseases
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