Iowa State Univ. researchers examine effectiveness of CDC’s COVID-19 vaccine deployment


AMES, Iowa (KCRG) – Researchers at Iowa State University have examined the effectiveness of the CDC’s vaccine deployment.

When the COVID-19 vaccine rollout began, Iowa had a very limited supply.

The CDC has proposed phases and levels for deploying the available vaccines.

Researchers at Iowa State University executed 17 million mathematical models of strategies the CDC could have used for vaccine deployment.

They recorded and compared several metrics, including expected deaths and number of cases. They also took into account the limited supply as well as the reluctance, knowing that not everyone would be willing to get the shot.

The researchers found that one measure couldn’t be improved without affecting another.

For example, protect older populations first, reduce deaths, or protect middle-aged Americans, reduce cases.

According to their analysis, the CDC’s strategy was close to the optimum.

“The way the CDC wasn’t optimal was that they didn’t really focus or distinguish between people who have pre-existing conditions that make you more likely to have a worse one. COVID cases and not, “Claus Kadelka, with the Iowa Department of Mathematics. , noted. “They only watched this in the general public, but they did not differentiate in any other group of the population.”

In other words, the CDC didn’t focus on people who had pre-existing conditions in every phase or level. But Kadelka said it was difficult to measure because some people don’t know they are at a higher risk.

Researchers are now building waning vaccine immunity into the model to look at booster shots.

Specifically, they are examining how serious the situation could be if certain segments of the population did not receive a booster. And these findings could inform decisions about awareness strategies for booster injections.

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Sara H. Byrd