Most current COVID-19 cases are from unvaccinated persons Author: Jacob Reyes Updated: 3:49 PM CDT July 29, 2021 BRYAN, Texas — The Brazos County Health District announced Thursday the COVID-19 Delta variant is in the Brazos Valley and a confirmed total number of 413 COVID-19 cases. As of today, there are 31 COVID-19 patients hospitalized in the Brazos Valley. At this time in January, the peak time of the COVID-19 pandemic, there were 71 patients. "There have been to date 16 Delta variants reported," Dr. Seth Sullivan, Brazos County Health Authority, said. "The vast majority of the cases that we're seeing today are no doubt Delta variant." Sullivan added vaccinated folks may still get infected with the Delta variant in "breakthrough infections."