There's bacteria in fish, woman (10)

I believe the answer is:

salmonella

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'bacteria in fish woman' is the definition.
'salmonella' can be an answer for 'bacteria' (I've seen this before). I am not sure about the 'in fish woman' bit.

I cannot understand how the remainder of the clue works.

Can you help me to learn more?

(Other definitions for salmonella that I've seen before include "ill-feeling" , "upsets a breadbasket" , "Cause of food poisoning" , "stomach trouble" , "Source of complaint" .)

I've seen this clue in The Daily Express.

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