The compostion of the 2013 – 2014 trivalent and quadrivalent flu vaccine for the Northern Hemisphere


The compostion of the 2013 – 2014 trivalent and quadrivalent flu vaccine for the Northern Hemisphere:

The World Health Organization has met in Geneva Switzerland in February 2013 to decide upon the composition of the Influenza or flu vaccine composition of the upcoming 2013-2014 flu season. A quote from their decision is below:
quote

Recommended composition of influenza virus vaccines for use in the 2013-14 northern hemisphere influenza season

21 February 2013
It is recommended that trivalent vaccines contain the following:

an A/California/7/2009 (H1N1)pdm09-like virusa;
an A(H3N2) virus antigenically like the cell-propagated prototype virus A/Victoria/361/2011b*;
a B/Massachusetts/2/2012-like virus.

It is recommended that quadrivalent vaccines containing two influenza B viruses contain the above three viruses and a B/Brisbane/60/2008-like virusc.

a A/Christchurch/16/2010 is an A/California/7/2009-like virus;
b A/Texas/50/2012 is an A(H3N2) virus antigenically like the cell-propagated prototype virus A/Victoria/361/2011;
c B/Brisbane/33/2008 is a B/Brisbane/60/2008-like virus.

* It is recommended that A/Texas/50/2012 is used as the A(H3N2) vaccine component because of antigenic changes in earlier A/Victoria/361/2011-like vaccine viruses (such as IVR-165) resulting from adaptation to propagation in eggs.

For more information

Recommended composition of influenza virus vaccines for use in the 2013-14 influenza season – full report
pdf, 229kb

Unquote
You may also want to read our follow up article, “Now is the time for your 2013 – 2014 flu vaccine“.

The Flu Virus

The Flu Virus

The 2013-2014 flu vaccine composition differs from the 2012-2013 and from the 2011-2012 flu vaccine composition. See below.

The Northern Hemisphere’s 2012-2013 seasonal influenza vaccine be made from the following three vaccine viruses:

  • an A/California/7/2009 (H1N1)pdm09-like virus;
  • an A/Victoria/361/2011 (H3N2)-like virus;
  • a B/Wisconsin/1/2010-like virus (from the B/Yamagata lineage of viruses).

While the H1N1 virus used to make the 2012-2013 flu vaccine is the same virus that was included in the 2011-2012 vaccine, the recommended influenza H3N2 and B vaccine viruses are different from those in the 2011-2012 influenza vaccine for the Northern Hemisphere.

The Northern Hemisphere’s 2011-2012 seasonal influenza vaccine contain the following three flu viruses:

  • an A/California/7/2009 (H1N1)-like virus;
  • an A/Perth/16/2009 (H3N2)-like virus;
  • a B/Brisbane/60/2008-like virus.

Related Articles:
Now is the time for the 2013-2014 flu vaccine
The History of the Flu Vaccine Development
Flu vaccine and Egg Allergy
The world’s top influenza (Flu) research laboratories decided to institute a self-imposed moratorium
Why am I feeling fatigued after the flu vaccine?

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3 Comments

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3 responses to “The compostion of the 2013 – 2014 trivalent and quadrivalent flu vaccine for the Northern Hemisphere

  1. Pingback: Now is the time for your 2013 – 2014 flu vaccine | Pursue natural

  2. Pingback: Certain flu vaccines are not recommended for all ages | Pursue natural

  3. Pingback: Why am I feeling fatigued after getting my flu vaccine? | Pursue natural

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