Comments on: No H1N1 cases confirmed at CMU http://www.cm-life.com/2009/09/10/university-officials-say-there-are-no-confirmed-h1n1-cases-at-cmu/ Your 24-hour news source for Central Michigan University Fri, 10 Feb 2012 11:31:00 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: anxietyboy http://www.cm-life.com/2009/09/10/university-officials-say-there-are-no-confirmed-h1n1-cases-at-cmu/comment-page-1/#comment-3673 anxietyboy Fri, 16 Oct 2009 10:25:57 +0000 http://www.cm-life.com/?p=2441#comment-3673 H1N1 or Swine Flu is a bit scary but it a good thing to note that this virus is not that very deadly. . H1N1 or Swine Flu is a bit scary but it a good thing to note that this virus is not that very deadly. .

]]> By: Elizabeth Alm http://www.cm-life.com/2009/09/10/university-officials-say-there-are-no-confirmed-h1n1-cases-at-cmu/comment-page-1/#comment-878 Elizabeth Alm Fri, 11 Sep 2009 19:16:31 +0000 http://www.cm-life.com/?p=2441#comment-878 It is important to define the term "confirmed" in this situation. According to the Centers for Disease Control and Prevention (and I quote): A confirmed case of novel influenza A (H1N1) virus infection is defined as a person with an influenza-like illness with laboratory confirmed novel influenza A (H1N1) virus infection by one or more of the following tests: real-time RT-PCR viral culture So, to report that there are "no confirmed cases" of 2009 Influenza A (H1N1) could mean that 1) there are indeed no cases of influenza-like illness or 2) any cases have been shown to be negative by laboratory confirmation testing or 3) there are cases of influenza-like illness but samples have not been submitted for laboratory testing or results have not yet been received and thus remain unconfirmed. The CDC does not recommend that all cases be laboratory confirmed. Nationwide, for the last week that data have been tabulated (week 34), 97% of Influenza A viruses that could be typed were shown to be 2009 Influenza A (H1N1). The Michigan Department of Community Health reports confirmed and probable cases of flu like illness in aggregate. One such case was reported in Isabella county between August 30 and September 5, and 2 additional cases were reported in the county during the week prior. MDCH website: http://www.michigan.gov/mdch/0,1607,7-132-2940_2955_22779_53388-213600--,00.html CDC website: http://www.cdc.gov/h1n1flu/ It is important to define the term “confirmed” in this situation. According to the Centers for Disease Control and Prevention (and I quote):

A confirmed case of novel influenza A (H1N1) virus infection is defined as a person with an influenza-like illness with laboratory confirmed novel influenza A (H1N1) virus infection by one or more of the following tests:

real-time RT-PCR
viral culture

So, to report that there are “no confirmed cases” of 2009 Influenza A (H1N1) could mean that 1) there are indeed no cases of influenza-like illness or 2) any cases have been shown to be negative by laboratory confirmation testing or 3) there are cases of influenza-like illness but samples have not been submitted for laboratory testing or results have not yet been received and thus remain unconfirmed.

The CDC does not recommend that all cases be laboratory confirmed.

Nationwide, for the last week that data have been tabulated (week 34), 97% of Influenza A viruses that could be typed were shown to be 2009 Influenza A (H1N1).

The Michigan Department of Community Health reports confirmed and probable cases of flu like illness in aggregate. One such case was reported in Isabella county between August 30 and September 5, and 2 additional cases were reported in the county during the week prior.

MDCH website: http://www.michigan.gov/mdch/0,1607,7-132-2940_2955_22779_53388-213600–,00.html

CDC website: http://www.cdc.gov/h1n1flu/

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