Influenza A virus subtype H1N1

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This colorized transmission electron micrograph shows H1N1 influenza virus particles. Surface proteins on the virus particles are shown in black
This colorized transmission electron micrograph shows H1N1 influenza virus particles

Influenza A virus subtype H1N1 is the subtype of influenza A virus that was the most common cause of human influenza (flu) in 2009, and is associated with the 1918 outbreak known as the Spanish Flu. It is also called swine flu by the media.

H1N1 strains caused a small percentage of all human flu infections in 2004–2005.

In June 2009, the World Health Organization (WHO) declared a new strain of swine origin, H1N1/09 as a pandemic. It spread worldwide and caused about 17,000 deaths by the start of 2010. On August 10, 2010, the WHO declared the H1N1 influenza pandemic to be over.[1]

Research Pertaining To ME/CFS[edit | edit source]

Pandemic influenza A (H1N1) infection was associated with a more than two-fold increased risk of CFS/ME. We found no indication of increased risk of CFS/ME after vaccination. Our findings are consistent with a model whereby symptomatic infection, rather than antigenic stimulation may trigger CFS/ME.[2]

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References[edit | edit source]

Myalgic encephalomyelitis or chronic fatigue syndrome, often used when both illnesses are considered the same.

Myalgic encephalomyelitis or M.E. has different diagnostic criteria to chronic fatigue syndrome; neurological symptoms are required but fatigue is an optional symptom.<ref name="ICP2011primer">{{Citation

The information provided at this site is not intended to diagnose or treat any illness.

From MEpedia, a crowd-sourced encyclopedia of ME and CFS science and history.