COVAX head: Focusing solely on COVID boosters is a "dangerous mistake"

The big picture: Berkley said that even in the Omicron era, global vaccinations are still the most effective way to protect people, though not everyone around the world has access to them.

• Berkley urged officials around the world that the priority for 2022 should be getting primary COVID-19 doses to everyone, not just boosters to those who are vaccinated.

What he's saying: "If the priority with each new variant of concern is to race toward reopening society by offering boosters instead of tackling the root cause — namely, the fact that nearly 3.5 billion people still have not been vaccinated — then we could face an endless cycle of resurgences and leave the door open for more dangerous variants," Berkley said.

• "The danger now with Omicron is that if governments once again turn their attention inward and focus all attention toward making boosters available to their citizens, it could again start to hinder equitable access and further prolong the global crisis," he added.

• "If we end up in a situation where we face Pi, Rho, Sigma, or Tao variants, and fourth, fifth, or sixth booster shots are being offered to some people while billions of others are still waiting on their first, then we really shouldn’t wonder why we are still in a state of global crisis," Berkley said.

Go deeper: The next big bottleneck in the global vaccination effort