Which of the following is an example of the primary prevention of a biological cause of intellectual disability?

Question

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Vaccinations for rubella are an example of primary prevention of a biological cause of intellectual disability as rubella infection during pregnancy can lead to intellectual disability in the child. By vaccinating individuals against rubella, the incidence of the infection and subsequent intellectual disability can be significantly reduced. Medical screening for PKU is also an example of primary prevention of intellectual disability caused by a biological factor. Programs such as Sesame Street and enrollment in Head Start programs are examples of interventions aimed at promoting intellectual development and are considered secondary prevention rather than primary prevention.

Which of the Following Is an Example of the Primary