The primary mode of transmission of Cholera (Vibrio cholerae O1 El Tor biotype) in outbreak settings is:

• A Person-to-person droplet transmission
• B Vector-borne via houseflies
• C Skin penetration from contaminated water
• D Feco-oral through contaminated water and food ✓

Explanation

Cholera is transmitted primarily by the feco-oral route through consumption of contaminated water (especially during floods) or food. The infectious dose is high (10^6–10^8 organisms) but is reduced in achlorhydric states. Houseflies may serve as mechanical vectors but the primary transmission is waterborne.

Reference: Park's Textbook of Preventive and Social Medicine, 27th ed.

High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP

Written and medically reviewed by the StethoPrep medical team.