Photo by the National Cancer Institute on Unsplash

What you need to know: Less than 1% of fully vaccinated people have contracted COVID-19 14 days after being vaccinated. In South Carolina, there have been 155 of these “breakthrough” cases.

“I think that’s evidence the vaccine is working,” Assistant State Epidemiologist Dr. Jane Kelly told Live 5 News. “These breakthrough cases are by in large asymptomatic or mild disease.”

Melissa Nolan, an infectious disease expert at USC, explained that these cases can happen for a number of reasons including genetics, individual immune system responses and high-risk exposure.

Latest COVID-19 data

South Carolina health officials reported 577 confirmed cases of the coronavirus on Sunday, with 14 confirmed deaths.

With 17,000 tests reported Sunday, 4.5% were positive.

Source: Department of Health and Environmental ControlInstitute for Health Metrics and Evaluation

Confirmed cases in S.C.: 475,601 (+577)
Total positive cases in Charleston County: 42,004 (+48)
Total positive cases in Berkeley County: 16,912 (+24)
Total positive cases in Dorchester County: 17,112 (+25)
Deaths in S.C. from COVID-19: 8,222 (+14)