Question
Asked Dec 15, 2019
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Discuss problems that have inhibited the production of an influenza vaccine.

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Expert Answer

Step 1

Influenza, more commonly known as flu is a respiratory disease that affects the nose, throat and lungs. The extent of the disease could be mild to severe and in critical cases, may even lead to death. Symptoms include chilling fever, sore throat, runny nose, headaches and fatigue.

Step 2

The disease is contagious and spreads through tiny droplets that are released by infected persons when they cough, sneeze or even rub their eyes. Droplets that suspend in the air can also cause flu by getting into the air passage of healthy individuals.

Step 3

The influenza virus is difficult to control because of its clever mechanism to evade the host immune system. This is by two mechanisms.

The first mechanism is antigenic drift that are small changes or mutations in the antigenic property of the virus. Every virus displays some proteins (antigens) on its surface called as surface antigens. These antigens are recognized by the host immune system which initiates a targeted response against the foreign body for its elimination...

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