PATHOLOGY

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PATHOLOGY MCQ

IMMUNE RESPONSE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A 3 month old baby contracts a virus called whooping cough (pertussis) after receiving the first of a sequence of 3 necessary DPT vaccines designed to prevent 3 diseases (diphtheria, pertussis, and tetanus). The vaccines are given at 2, 4, and 6 months of age to allow the body to develop specific immunity against these diseases. After the infant recovered from the disease, the doctor informed the parents that from now on the infant would only need the DT (diphtheria, tetanus) part of the vaccine. Why does the infant only need the DT vaccine?
A
The infant had the first of a series of vaccines which caused the disease
B
The infant had the pertussis disease and has already produced antibodies against the disease.
C
The infant had the first of a series of vaccines which protected him from getting the disease.
D
The infant had the pertussis disease and will get diphtheria in the future.
Explanation: 

Detailed explanation-1: -Give one dose at each of these ages: 2 months, 4 months, 6 months, 15 through 18 months, and 4 through 6 years.

Detailed explanation-2: -DTaP is the name of the whooping cough vaccine for children (2 months through 6 years). DTaP vaccine combines protection against diphtheria, tetanus, and pertussis (whooping cough).

Detailed explanation-3: -DTaP vaccine can prevent diphtheria, tetanus, and pertussis. Diphtheria and pertussis spread from person to person. Tetanus enters the body through cuts or wounds.

Detailed explanation-4: -CDC routinely recommends DTaP at 2, 4, and 6 months, at 15 through 18 months, and at 4 through 6 years. CDC routinely recommends Tdap for children ages 7 through 10 years who are not fully vaccinated (see note 1) against pertussis: Single dose of Tdap for those not fully vaccinated (see note 1) or.

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