Attitudes and Factors Associated With COVID-19 Vaccine Hesitancy Among Patients With Breast Cancer

dose.In this cohort, ipsilateral axillary nodal activity was much less common after the first vaccine dose, and women were more likely to develop reactive nodes, an important implication for breast cancer imaging concordant with the statement issued by the Society of Breast Imaging. 6 Limitations.This was a single institutional study with limited sample size and follow-up, comparing 2 COVID-19 vaccines available at Yale School of Medicine in early vaccination stage.However, the study was conducted by strict and reproducible PET and CT criteria, and provides a framework for the future studies in this field.Conclusions | Ipsilateral axillary nodal reactivity is commonly seen after the intramuscular administration of the COVID-19 mRNA vaccines, more so after the second dose than after the first, and more commonly with the Moderna than the Pfizer vaccine.