Vaccines are probably the most useful and cost-effective public health tools known to mankind for preventing diseases. Vaccines are complex biologic agents which give you immunity against a particular disease without you getting sick first. They contain either the weakened disease-causing germs, which are either killed, attenuated, or a part of this disease-causing germ. Apart from the antigen, vaccines also contain some other components such as adjuvants which increase the potency of a vaccine, stabilizers which increase the stability of a vaccine and additives which are added during the manufacturing process.

Remember that investing money in vaccination is a much wiser decision than spending money on ready made baby foods. Once a child suffers from an infection, parents not only have to spend a huge amount in treatment, there is also loss on a number of school days, abstinence in work by parents and other social issues. And due to the emergence of antimicrobial resistance and other cause, we cannot guarantee successful treatment too for all infections.