From:

Genetic immunity and influenza pandemics

https://academic.oup.com/femspd/article/48/1/1/529808

FEMS Immunology & Medical Microbiology, Volume 48, Issue 1, October 2006, Pages 1–10,

key points,for me:

“In any case, not everyone will be susceptible and universal vaccination is unlikely to be recommended. The principle of total vaccination should be exchanged for the principle of individually motivated prophylaxis based on genetic indications.”

“The resources of the Human Genome Project should also be utilized.”

The above is only the authors opinion. I don't no if the vaccination for COVID-19 is intended to be universal. And if the ability or cost of discovering an individuals genetic indications is more difficult or more expensive than vaccination.

I wonder why the author in 2006 felt that universal vaccination would unlikely be recommended?

Note: the above paper was written at least 13 years before the existence of COVID-19.