how does mmr vaccine works
The MMR (Measles, Mumps, Rubella) vaccine works by triggering the immune system to produce antibodies against the viruses that cause these diseases. The vaccine contains weakened or dead versions of the viruses that cannot cause the diseases themselves but are still recognized by the immune system. Upon receiving the vaccine, the body will recognize these viruses and produce antibodies to attack them, effectively building immunity to these diseases. This immunization gives the body the ability to fight off these viruses in the event of future exposure, decreasing the likelihood of contracting the diseases.
The MMR vaccine works by introducing a small, weakened or inactivated form of three different viruses into the body - measles, mumps, and rubella (German measles).
When the vaccine is injected, it stimulates the immune system to recognize and respond to these viruses. The body's immune system produces specific antibodies to fight against each of these viruses. These antibodies remain in the body even after the vaccine wears off and provide protection against future infections.
The measles virus in the vaccine triggers the production of measles-specific antibodies, which help prevent measles infection. Similarly, the mumps virus stimulates mumps-specific antibodies, and the rubella virus stimulates rubella-specific antibodies.
By getting vaccinated with the MMR vaccine, the immune system is prepared to recognize and fight these viruses in case of exposure to the actual diseases. This helps to prevent the person from getting infected or reduces the severity of the symptoms if they do get infected.
It is important to note that the MMR vaccine is usually given in two doses to provide long-lasting protection. The first dose is typically given around 12-15 months of age, while the second dose is given between 4-6 years old.