First case of postmortem study in a patient vaccinated against SARS-CoV-2
sciencedirect.com
sciencedirect.com
I looked up those terms.
Immunogenicity means that it provokes an immune response.
Sterile immunity against a virus means that your immune system will stop the virus from replicating in your body.
Some vaccines, such as the inactivated polio vaccine, protect against the disease but do not produce sterilizing immunity. If you get the virus it can reproduce in your body but your immune system will be able to limit it enough that you don't get sick.
In the video you shared, they talk about the ADE, basically allowing the virus to go to places it wouldn't otherwise be able to. Not sure if this is related.
Buried lede?