Oral Cholera Vaccine (OCV) used in India under emergency situations is a killed whole-cell vaccine. The schedule for adults in a reactive vaccination campaign is:

• A Single dose only
• B Three doses over 6 weeks
• C Single dose with annual booster
• D Two doses 14 days apart ✓

Explanation

The WHO-prequalified oral cholera vaccines (e.g., Shanchol) are given as 2 doses at least 14 days apart. In emergency outbreak settings, reactive vaccination campaigns may use a single dose for rapid protection, but the standard protective schedule remains 2 doses. A 3-dose regimen is not standard for any currently approved OCV.

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.