Purely anecdotal; I found it odd to see my mother (diagnosed with alzheimer 3/4 year ago) behaving and talking more coherent days after her mRNA covid-19 vaccin

Purely anecdotal; I found it odd to see my mother (diagnosed with alzheimer 3/4 year ago) behaving and talking more coherent days after her mRNA covid-19 vaccine shots. I thought perhaps the immune response lessened the symptoms temporarily.