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Soloha48 [4]
3 years ago
14

Every year a new version of the flu vaccine is made using a mixture of strains. The strains are chosen based on surveillance and

analysis by experts from the FDA, WHO. and CDC. For other diseases however, such as varicella (chickenpox), the same vaccine is used continually and repeated vaccinations are not necessary. What do you conclude is the important difference between the influenza virus and the varicella zoster virus with regards to vaccinations?
A) Influenza envelope proteins are bound by IgM, while varicella envelope proteins are bound by IgG.

B) Influenza virus has a much higher mutation rate than varicella, leading to frequent antigen changes in the coat proteins.

C) Varicella is attacked by the innate immune system, while influenza is attacked by the acquired immune system.

D) Influenza virus is transmitted through aerosol droplets in the air, while varicella can be transmitted via skin secretions.
Business
1 answer:
ladessa [460]3 years ago
5 0
I believe the answer is b
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her business plan document

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A crucial criteria to receive funding from banks is to have a detailed business plan document.

This document would explain Mercy' mobile bakery business:

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The bank has the responsibility of analysing this document and then making a decision whether to grant her funds.

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It represents a cause

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The nature of the tax system means that there is usually a trade-off between _____ and _____ ability to pay equity opportunity c
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