The agency’s decision to limit its reporting of breakthrough cases has prompted wide variation in how states keep tabs on them.
The Centers for Disease Control’s limited tracking of Covid-19 cases in vaccinated people is hindering public health officials’ attempts to stem the nationwide surge of the highly transmissible Delta variant.
The agency said in May that it would stop routinely tracking so-called breakthrough infections that didn’t lead to hospitalization or death. Several states then stopped tracking mild breakthrough cases, and at least two states told POLITICO they are having trouble reliably tracking infections in vaccinated people.
https://www.politico.com/news/2021/07/30/pressure-cdc-breakthrough-cases-501821