Gavin developed artificial active immunity type of immunity from the vaccinations he received. This type of immunity can be induced by a substance that contains an antigen. This substance is called vaccine. The vaccine s<span>timulates a primary response against the antigen. There are no symptoms of the disease.</span>
<span>Kids aging 4-6 years, such as Gavin, should receive 4 vaccines:
DPT vaccine, which belongs in a class of combination vaccines against three diseases (diphtheria, pertussis (whooping cough), and tetanus);
MMR vaccine, which is an immunization vaccine against measles, mumps, and rubella (German measles);
IPV vaccine, which is a vaccine against Polio;
Varicella vaccine, which is a vaccine against chicken pox.</span>
