This makes sense that there would be a rise in breakthrough infections considering how many more people in South Korea continue to get vaccinated. Plus most of the breakthroughs are from the Johnson & Johnson one shot vaccine that has a lower efficacy rate than its mRNA counterparts:
The Korea Disease Control and Prevention Agency (KDCA) said Thursday that more than 5,000 COVID-19 breakthrough infections, mostly among young men who received Johnson & Johnson’s Janssen vaccine, have been detected as of Sept. 12.
According to the KDCA, 5,880 people tested positive for COVID-19 after being fully vaccinated with the one-shot vaccine.
This means 40.2 people per 100,000 fully vaccinated patients have been subject to breakthrough infections. By age group, people in their 30s made up the largest ratio, of up to 110.1 per 100,000. (……)
From Aug. 29 to Sept. 11, 10.2 percent of new cases, or 20,895, were believed to be breakthrough infections.
By vaccine type, people getting Janssen shots made up the largest portion, with 161.2 out of 100,000 testing positive, followed by 33.5 people receiving Pfizer jabs, 27.6 receiving AstraZeneca and 24.2 receiving Moderna.
Korea Times
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