The Centers for Disease Control and Prevention will stop investigating any breakthrough COVID-19 infections among fully vaccinated people — unless those people are super sick and need hospitalization, or if they’re close to death, according to The New York Times.

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Experts said the CDC’s decision not to investigate those casescould create future problems, as it’s limiting how much we learn about the novel coronavirus and how it impacts fully vaccinated people, according to The New York Times.

  • “We are driving blind, and we will miss a lot of signals,” Ali Mokdad, an epidemiologist at the University of Washington, told The New York Times.
  • “The CDC is a surveillance agency,” she added. “How can you do surveillance and pick one number and not look at the whole?”

But Dr. Kathryn Edwards, a professor of pediatrics at Vanderbilt University School of Medicine, argued that finding more about severe cases is more important.

“We have to prioritize what we’re doing, and the priority is to understand the cases associated with severe disease,” she said, according to The New York Times.