155 fully vaccinated people in SC got COVID-19 in extremely rare ‘breakthrough’ cases

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The Island Packet (South Carolina)

Dr. Natasha Chida is quoted in this article.

It’s unclear why some residents eventually contract SARS-CoV-2 after being vaccinated, said Dr. Natasha Chida, an infectious disease expert and assistant professor of medicine at Johns Hopkins University.

The coronavirus vaccines from Pfizer, Moderna and Johnson & Johnson are all very protective, she said, but they’re still not 100% effective at blocking infection.

“It’s just, from the numbers standpoint, going to happen,” Chida said of breakthrough cases.