Online resource for Viruses/bacterias/vacines

[Tin Cup]

Hi:

I am an engineer who has started with a pharmaceutical company that is into 
vaccines. Although it is not directly related to my job but there are terms 
like viruses/bacterias and cultures that are used a lot in the meeting. I 
was wondering if there is any online resource that would provide a general 
overview of this area. Again my intention is only to get a general idea 
about the nature of business and not looking for too much detail.

Thanks in advance.
Tin

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