Investigating clusters of group A streptococcal disease

USING

 CALCULATOR

 Home Page

Introduction

Calculator

  Please read this first

  Calculate expected  

  number of cases in        

  county or region

Starting an  Investigation

Faqs

  Review these first steps    

  to an investigation

  Frequently Asked

  Questions

Using  the Calculator

Active Bacterial Core surveillance(ABCs)

  How to input variables,

  calculate expected

  number of cases and

  interpret results

  An active laboratory-

  and population-based

  surveillance system for

  invasive bacterial

  pathogens

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

Photo credits: FreeFoto.com

This page last modified on March 14, 2008
Content last reviewed on December 10, 2007
Content Source: National Center for Immunizations and Respiratory Diseases