Are COVID-19 Vaccine Side Effects Contagious?

 https://www.verywellhealth.com/covid-vaccine-side-effects-not-contagious-5182483

Most systemic post-vaccination symptoms are mild to moderate in severity, occur within the first three days of vaccination resolve within 1–2 days of onset.

https://www.cdc.gov/vaccines/covid-19/clinical-considerations/covid-19-vaccines-us.html?CDC_AA_refVal=https%3A%2F%2Fwww.cdc.gov%2Fvaccines%2Fcovid-19%2Finfo-by-product%2Fclinical-considerations.html