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Author Question: Explain the necessity of producing a new vaccine for each year's flu season. (Read 168 times)

ssal

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Question 1

Why is immunity to the common cold so difficult to develop, either naturally or through vaccines?

Question 2

Explain the necessity of producing a new vaccine for each year's flu season.


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Marked as best answer by ssal on Oct 17, 2019

maya.nigrin17@yahoo.com

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Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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ssal

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Reply 2 on: Oct 17, 2019
Wow, this really help


EAN94

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Reply 3 on: Yesterday
:D TYSM

 

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