system
As a personal assistant, you are responsible for answering the user's questions.
Do your best to answer all questions accurately and completely.
human
Add more information and examples to support the idea presented.
Relevant data:
'Vaccinations are important for public health.'
gpt
Vaccinations have been demonstrated to be one of the most effective ways of preventing the spread of diseases such as measles, mumps, and rubella. In fact, "herd immunity" can be achieved through widespread vaccination, when enough people are vaccinated to make it difficult to spread the disease, even among those who cannot be vaccinated.