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Which of the following vaccine’s first dose are injected to babies at the age of 1 ½, 2 ½, 3 ½ months?
A. DPT, Hib and Polio
B. Polio and BCG
C. BCG, DPT and MMR
D. BCG and Hepatitis B
E. MMR, hepatitis A and DPT

Answer
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Hint: Vaccines are the best way to protect infants and children from potential infections as it helps in boosting the immunity, thus, preventing harmful diseases. Different vaccines are administered at different ages in children.

Complete answer: DPT is a vaccine, which is a combination against three infectious and communicable diseases, such as Diphtheria; is a bacterial infection that can lead to difficulty in breathing, heart failure and even death; Pertussis also known as whooping cough which is a highly contagious infection affecting the respiratory tract and Tetanus; which is also a bacterial infection. Hib vaccine is provided as an immunity booster against Hemophilus influenza B virus which can be given in the age of two to six months of the child, and a booster dose at the age of two to five years. Polio vaccine is given against the poliomyelitis virus, which upon infection can cause severe deformities in the child and even paralysis. The above vaccines are given at the age of 1 ½, 2 ½ and 3 ½ months of the babies. Considering other given options, the BCG vaccine is given when the baby is one week old. Hepatitis B vaccine is administered during the age of six months and the MMR vaccine is provided at the age of twelve months.
Hence, the correct answer is Option A.

Note: Vaccines contain microorganisms, which can be either bacteria or virus in an inactive, weakened, live or killed state. It is also composed of inactive proteins or toxins from organisms. The administration of these chemicals or organisms induces an immune reaction in the body against the deadly diseases which can be potentially caused. Vaccination is the most effective method in preventing the spread of infectious diseases.