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Breakthrough COVID-19 cases, how common are they?

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FORT WAYNE, Ind. (WPTA21) - As the Delta variant continues to spread, a number of rare ‘breakthrough’ COVID-19 cases are affecting vaccinated Americans. 

Researchers with Kaiser Family Foundation say it’s highly unlikely to get COVID-19 if you are vaccinated. 

Data shows fewer than 1% of vaccinated people are experiencing what they call ‘breakthrough cases’ and it’s mostly because of the Delta variant. 

Eli Tash says he has one of those cases.  

"I thought that I had a sinus infection,” Tash said. "I was very shocked very angry by the situation.” 

Tash says he began feeling symptoms last week.  

He says he decided to get tested after hearing officials with the CDC discovered it’s possible for the Delta variant to spread to people who are vaccinated.  

"I’m very cautious and I tried to take as many precautions as possible especially with the Delta variant,” Tash said. "I do believe that if I didn’t have the vaccine, I would have very serious side effects.” 

The CDC says symptoms of the Delta variant are much worse for the unvaccinated. 

KFF data shows 98.9 percent of COVID-19 cases, hospitalizations and deaths are among the unvaccinated in Indiana. 

"It’s about time we take a step towards helping people, truly you have to believe science. There’s no stopping this disease without trusting science.” 

Tash says this shows how contagious the delta variant actually is, and he’s urging people to get their vaccine. 

"I am going to be very skeptical, and I want people to wear masks and start taking this seriously.” 

Health experts say they can’t stress enough how important it is to get vaccinated. 

They say even if you do get one of these ‘breakthrough cases’ it will decrease the severity of your symptoms.  

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Karli VanCleave

Karli VanCleave is a multimedia journalist at WPTA for the evening newscast. Karli is a Fort Wayne native and Indiana University Bloomington graduate.
Feel free to connect with her on Facebook (@KarliVanCleaveNews) and Twitter (@Karli_VanCleave), or if you have a story idea send her an email at

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