My aunt keep telling my mom to get vaccinated is she right?

My mom has heart disease and can't get vaccinated and my aunt and keep telling my mom to get covid vaccine cuz it will keep her safe from COVID and also she said covid vaccines are safe for people especially older people like my mom. And that she is stupid for not getting vaccine and that she is only concern for my mom. I told her its not right to keep telling people what to do and she said Im just worried of her getting COVID because Im concern
My aunt keep telling my mom to get vaccinated is she right?
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