Some info here but doubtful you will get any records of relatives - https://www.sheffield.gov.uk/content/dam/sheffield/docs/libraries-and-archives/archives-and-local-studies/research/cholera%20study%20guide%20v1-6.pdf
Thanks Lyn,
A very useful resource and some clues for following up. Based on the information contained it appears my ancestor was fortunate to survive and be transported to Australia in 1833!