H3N2 Influenza IN Humans
Today we will learn some basics about H3N2
Recently news paper cover this influenza news
Influenza History : IN 1968 a
Novel strain of H3N2 emerged in Hong Kong
(A Hongkong/1/1968)(HK/68)
That quickly led to a global epidemic that
Was associated with more than one million
Deaths world wide.
Symptoms: fever sore throat
Coughing nasal discharge headache
And myalgia .Severe cases can also
lead to development of conditions
Such as bronchitis or pneumonia .
In 1968 an Avian reassortant virus of the H3N2
Subtype was introduced into the human
Population that cause a Global pandemic
Associated with more than one million
Deaths world wide.
Since introduction in1968 H3N2 influenza viruses have undergone an extensive
Genetic and antigenic evolution leading to
28 vaccines strain changes(This is strength
Of virus)
Over that period of time .
H3N2 influenza also altered receptor
Binding properties over half century
Poor efficiency nearly 28to42%
For all age groups in US
And in Europe
The WHO. Meets twice a year to recommend
In seasonal influenza vaccine
Ref Hum vaccine Immunotherapy
2018:14(8);1840---1847
James D Allan and aTed M .Ross
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