infectious disease

longhorn

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Dec 2, 2002
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Bay area
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I have been reading on fish disease lately. However, I am just wondering if someone can summarize which type of disease is infectious and which one is not. Here is my take on it. There are 3 types of disease: virus, bacteria and parasite.

We all know parasite disease like ick is infectious so if you get one fish sick, you need to treat the whole tank. How aobut the other two. Can someone suggest which diseases can be treated in isolation and which ones has to be treated more broad based?
 
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