Crossword Genius

Can such diseases be put right into a little bottle? (5)

Ross

I believe the answer is:

viral

I'm a little stuck... Click here to teach me more about this clue!

'can such diseases be put right' is the definition.
I can't judge whether this defines the answer.

'a little bottle?' is the wordplay.
I cannot quite see how this works, but
'a' is found in the answer.
The remaining letters 'virl' is a valid word which might be clued in a way I don't see.
This explanation may well be incorrect...

'into' acts as a link.

Can you help me to learn more?

(Other definitions for viral that I've seen before include "Like pathological agents" , "Caused by pathogenic agent" , "as an internet sensation" , "Like many diseases" , "Like some infections" .)

I've seen this clue in the Evening Standard.
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