Why Some Vaccinated People Resist Omicron and Others Don’t
About 20% of people just won’t have a good immune response, even with a booster.
Not all immune systems are the same.
Photographer: Pedro Vilela/Getty Images South AmericaThe omicron variant spreads so rapidly that sometimes it feels as if resistance is futile. It’s disheartening to hear of omicron infecting people who are up-to-date on their shots and wear an N95 mask every time they leave home. Even some well-known public-health experts are getting infected. But that doesn’t mean everyone is going to get it.
What it does mean is that life is profoundly unfair. In some of us, the Covid-19 vaccines work quite robustly, even against omicron. In others, the vaccines’ effect is weaker. Chalk this up to the spectacular diversity of the human immune system, which is partly regulated by some of the most varied genes in the human body.