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What is A 2-year-old child diagnosed provisionally with diphtheria and on examination she has greyish white membrane patch around her tonsils. The child has a 6-year-old sibling at home, who is fully immunized as per the schedule. What is the best measure to prevent disease in the sibling of the child and explain in detail?
* For the contacts if the primary course of vaccination is less than 2 years- nothing is required* Vaccine is taken >2 years- 1 dose toxoid is required* Unimmunized contacts-antitoxin, active immunization, prophylactic penicillin or erythromycin and clinical observation for 1 week