Final answer:
Vaccinations are crucial for building a baby's immune system to protect against diseases. They provide artificial immunity and contribute to herd immunity, protecting individuals who cannot be vaccinated. Extensive research has demonstrated vaccine safety and efficacy. Therefore, the correct option is b.
Step-by-step explanation:
The best response that a nurse can give to a new mother asking why her baby should receive recommended vaccinations is: "Vaccinations help build your baby's immune system to fight off diseases." Vaccines are designed to prevent illnesses by stimulating the body's adaptive immune defenses, creating memory cells that enable a strong secondary response if the body is exposed to the actual pathogen.
Vaccinations provide a form of artificial immunity that is similar to the natural immune response but without the risks associated with contracting the diseases themselves. Herd immunity is also a crucial aspect of vaccinations, as high levels of immunization within a population protect those who cannot safely receive vaccines, such as children with compromised immune systems.
Vaccines have been proven effective in preventing diseases like measles, whooping cough, and polio, and are considered safe through extensive research and peer-reviewed studies.