You are the MO in charge in a PHC and there has been a plague epidemic in your area. Which of the following measure is the LEAST appropriate for controlling epidemic?: (A) Rapid treatment of cases with streptomycin, (B) Vaccination of all susceptible individuals, (C) Isolation of contacts, (D) Early diagnosis and notification
Answer is B. After vaccination it takes about 5-7 days for the immunity to develop. So it should be carried out at least a week before the expected outbreak. This vaccination is only used for prevention and not control of outbreak. Also know: Tetracycline is the drug of choice for chemoprophylaxis against plague. Ref: Park, Edition 21, Page - 271.