‘Ring vaccination’ is –
Correct Answer: Given around 100 yards of a case detected
Description: Ans. is 'c' i.e., Given around 100 yards of a case detected Ring immunization (ring vaccination) o It is a type of isolation, where vaccine is administered only to people in close contact with isolated infected patients. o This encircles the infected persons with a barrier of immune persons through whom the infection is unable to spread. o Method was used in Small pox o In noh america, ring immunization is being applied in measles control and eradication. Note : I am not sure about the distance, to which vaccination should be given (option c or d).
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Social & Preventive Medicine
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