a description about the infectious and dangerous disease influenza

1. A presentation on
Influenza:
symptoms, causes and
cure
BY
A.RISHI VACHASPATHY
2011B2A5571H

2. Symptoms, prevention and
vaccine

Influenza is also known as “the flu” and “grippe”.

Symptoms include high fever(100-103F) in adults and even higher in
children, cough, sore throat, as well as headache and often extreme
fatigue.

Most people recover from it within two weeks but some people
develop serious and life threatening medical complications like
pneumonia.

It is a very infectious disease as it is spread very easily from one person
to another.

The risk of catching influenza lowers if a person roams in sunlight and
frequently washes their hands as both acts inactivate the virus.

There is an yearly vaccines for influenza which are quite effective
against the virus and also show little or no side effects

3. How to differentiate between the
common cold and the flu

Flu symptoms tend to come on much quickly and more intensely
than those of the cold.

In the case of flu there will be high fever but not in the case of cold.

When a person has got the flu they are very fatigued for weeks but
the symptoms of cold last only a week or so.

Headache caused by flu is much more painful than that caused by
the cold

4. Causes of influenza

It is caused by a RNA virus of the orthomyxoviridae family.

There are three types of influenza viruses
(i)influenza type A
(ii)influenza type B
(iii)influenza type C

All three of them have almost the same physical structures, they are
either filamentous or spherical.

5. TEM of negatively stained influenza
virions, magnified approximately 100,000 times

6. Thank you