How is cholera transmitted?

Updated: Feb 03, 2021
  • Author: Sajeev Handa, MBBCh, BAO, LRCSI, LRCPI; Chief Editor: Russell W Steele, MD  more...
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Owing to the relatively large infectious dose, transmission occurs almost exclusively via contaminated water or food. V cholerae O1 has been shown to survive in crabs boiled for 8 minutes, but not in crabs boiled for 10 minutes. Transmission via direct person-to-person contact is rare.

Certain environmental and host factors appear to play a role in the spread of V cholerae.

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