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As promised, the CDC continues to post, and revise, guidance documents on their Swine Flu website as new information is acquired and analyzed.
Many of these documents are of most interest to clinicians, or public officials, but all are available for you to view.
We hear a lot about Suspected, Probable, and Confirmed cases. Here are the revised case definitions.
Interim Guidance on Case Definitions to be Used For Investigations of Swine Influenza A (H1N1) Cases*
April 29, 2009 2:00 AM ET
This document provides interim guidance for state and local health departments conducting investigations of human cases of swine-origin influenza A (H1N1) virus (S-OIV). The following case definitions are for the purpose of investigations of suspected, probable, and confirmed cases of S-OIV infection.
Acute febrile respiratory illness is defined as a measured temperature of 37.8 degrees Celsius (100.4 degrees Fahrenheit) and recent onset of at least one of the following: rhinorrhea or nasal congestion, sore throat, or cough.
Case Definitions for Infection with Swine-origin Influenza A (H1N1) Virus (S-OIV)
A confirmed case of S-OIV infection is defined as a person with an acute febrile respiratory illness with laboratory confirmed S-OIV infection at CDC by one or more of the following tests:
- real-time RT-PCR
- viral culture
A probable case of S-OIV infection is defined as a person with an acute febrile respiratory illness who is positive for influenza A, but negative for H1 and H3 by influenza RT-PCR
A suspected case of S-OIV infection is defined as a person with acute febrile respiratory illness with onset
- within 7 days of close contact with a person who is a confirmed case of S-OIV infection, or
- within 7 days of travel to community either within the United States or internationally where there are one or more confirmed cases of S-OIV infection, or
- resides in a community where there are one or more confirmed cases of S-OIV infection.
This is a fluid situation, and we should expect revisions and updates as a matter of course.
Here are the changes/additions to the CDC’s Swine Flu site so far today. You can visit the What’s New page to see the latest updates.
Wed, 29 Apr 2009 06:30:00 EST
Interim Guidance for Emergency Medical Services (EMS) Systems and 9-1-1 Public Safety Answering Points (PSAPs) for Management of Patients with Confirmed or Suspected Swine Influenza A (H1N1) Virus Infection
This document provides interim guidance for 9-1-1 Public Safety Answering Points (PSAPs), the Emergency Medical Services (EMS) system and medical first-responders and will be updated as needed at http://www.cdc.gov/swineflu/guidance/.The information contained in this document is intended to complement existing guidance for healthcare personnel, “Interim Guidance for Infection Control for Care of Patients with Confirmed or Suspected Swine Influenza A (H1N1) Virus Infection in a Healthcare Setting” at http://www.cdc.gov/swineflu/guidelines_infection_control.htm.
Wed, 29 Apr 2009 03:30:00 EST
CDC Health Update: Interim Guidance--Children and Pregnant Women who may be Infected with Swine-Origin Influenza Virus: Considerations for Clinicians
Health Alert NetworkApril 28, 2009
Wed, 29 Apr 2009 02:00:00 EST
UPDATED Interim Guidance on Case Definitions for Swine Influenza A (H1N1) Human Case Investigations
This document provides interim guidance for state and local health departments conducting investigations of human cases of swine-origin influenza A (H1N1) virus (S-OIV). The following case definitions are for the purpose of investigations of investigation of suspected, probable, and confirmed cases of S-OIV infection.
Wed, 29 Apr 2009 01:45:00 EST
Swine Flu: Emergency Use Authorization (EUA) of Medical Products and Devices
The U.S. Food and Drug Administration, in response to requests from the U.S. Centers for Disease Control and Prevention, has issued Emergency Use Authorizations (EUAs) to make available to public health and medical personnel important diagnostic and therapeutic tools to identify and respond to the swine flu virus under certain circumstances. The agency issued these EUAs for the use of certain Relenza and Tamiflu antiviral products, and for the rRT-PCR Swine Flu Panel diagnostic test.
Wed, 29 Apr 2009 00:00:00 EST
Interim Guidance for Clinicians on Identifying and Caring for Patients with Swine-origin Influenza A (H1N1) Virus Infection
This document provides interim guidance for clinicians who might provide care for patients with swine-origin influenza A (H1N1) or suspected swine-origin influenza A (H1N1) virus infection. It will be periodically updated as information becomes available.
