Data from South Korea shows just how rare it is,for fully vaccinated people to catch COVID-19.
As of Friday, the country has reported 29 cases of "breakthrough infection",… among patients who passed 14 days, after receiving ALL recommended doses.
That translates to less than 1 person in every 100-thousand.
In the U.S. the number is about 10, and India 5.
So far, most local cases have been linked to Pfizer's vaccine, largely due to the number of Pfizer recipients who are fully vaccinated.
"There are three times more people who are fully vaccinated with the Pfizer vaccine, than with the AstraZeneca vaccine. Therefore, theoretically speaking, breakthrough cases could be reported among fully-vaccinated AstraZeneca recipients in the future."
Breakthrough cases involving AstraZeneca have been seen overseas.
In a nursing home in India, 33 people who've received both doses of the AstraZeneca jab tested positive.
These post-inoculation infections may have varying reasons.
"The immune system health of the individuals in question and COVID-19 variants may be to blame for these infections, despite the vaccines being effective."
Even in these rare cases of breakthrough infection, experts say vaccines should provide meaningful effects.
A recent CDC study shows,… those vaccinated had about 40 percent less of the virus - meaning they are less likely to transmit COVID-19.
And they were 60 percent less likely to have fever,….and recovered two days faster than other Covid patients.
But with the increasing risk of variants, experts recommend, wearing face masks and following social distancing measures, even after being fully vaccinated.
Lee Kyung-eun, Arirang News.