According to doctors, with time the body’s ability to fight diseases begins to weaken. The effect of some vaccines also reduces after years, hence the body keeps requiring booster doses. Vaccines are considered very important especially for the elderly, pregnant women and people suffering from diabetes or other serious diseases. This gives the body strength to fight dangerous viruses and infections and reduces the risk of serious diseases.

Also, to avoid the flu virus that changes every year, doctors recommend taking the flu vaccine once a year. People often ignore flu considering it to be normal fever. Apart from this, Tdap vaccine is also very important, which protects against diseases like tetanus, diphtheria and whooping cough. Doctors say that it is necessary to get its booster done every 10 years so that the body’s safety is maintained.