How could she get a Moderna vaccine in February 2020? The first Covid vaccine (the Pfizer one) was only approved in December, 2020 and was originally rationed to high-risk groups. Maybe you meant February, 2021?
I only had a stage 1 cancer. I wasn’t in any priority group to get Covid vaccines. I keep up-to-date with them now.
Moderna was available in February 2020 in FLorida. I had a jab along with my wife. I still have the certificate.