According to the Hawaii Department of Health (DOH), three people in Hawaii who had received both doses of either the Moderna or the Pfizer/BioNTech vaccine subsequently tested positive for the Covid-19 coronavirus. Additionally, a fourth person who had received the first of two doses of the vaccine ended up catching the B.1.1.7 variant of the severe acute respiratory respiratory syndrome coronavirus 2 (SARS-CoV2). That be a more contagious version of the SARS-CoV2.
The following KHON2 News report further described what happened:
More @ Source:
https://www.forbes.com/sites/brucelee/2021/03/14/3-fully-vaccinated-people-catch-covid-19-coronavirus-says-hawaii-doh/