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.
Select your answer:
Topics:
Microbial Growth Embryology Circulation and Excretion DNA, RNA, Proteins Molecular Basis of Inheritance Muscular System NCHSE Neuron Structure Excretion Skin Diseases Biotechnology Pathology of Respiratory System Infection Control Macromolecules The Cell Cycle Pituitary, Thyroid and AdrenalOther quiz:
Food › ViewGoitre: swelling of thyroid glands occurs due to the deficiency of
A. iodine
B. potassium
C. phosphorus
D. iron
Tissues › View
the dead element present in the pholem is
A. companion cells
B. phloem fibers
C. pholem parenchyma
D. sieve tubes