What is a vaccination breakthrough case of COVID-19?
A COVID-19 vaccination breakthrough case is when someone who is fully vaccinated tests positive for COVID-19 more than 14 days after getting the second dose of Moderna or Pfizer vaccines, or more than 14 days after getting the Johnson & Johnson vaccine.
Are breakthrough cases common?
Breakthrough cases are expected, but they are not common. No vaccine is 100 percent effective at preventing illness, and that includes the COVID-19 vaccines.
Let’s do some math.
In Idaho, 826,587 people were fully vaccinated as of Oct 27. Of those, 13,285 had experienced a breakthrough case. That means 1.6 percent of fully vaccinated people have experienced a breakthrough case. Or 98.4 percent of fully vaccinated people haven’t experienced a breakthrough case.
The Department of Health and Welfare tracks breakthrough cases in Idaho on its COVID-19 data dashboard at the bottom of the Case Characteristics page.
Do breakthrough cases mean the COVID-19 vaccines don’t work?
The vaccines are working. They are especially effective against hospitalization and death, and they greatly reduce your chances of getting COVID-19 in the first place. If you do have a breakthrough case, it further reduces the likelihood that you will be sick enough to have to go to the hospital or die.
Are people contagious who have a vaccination breakthrough COVID-19 infection?
They can be. That’s why it’s important to do several things to help prevent the spread of disease, including getting vaccinated and wearing a mask indoors and in crowded places outdoors.
Department of Health and Welfare Director Dave Jeppesen also wrote about breakthrough cases in his blog on Oct. 29.
Stay up to date with the latest and most accurate information on COVID-19 at these websites:
- Idaho’s Coronavirus website: see a timeline, the most current data on cases, vaccine, and more.
- Idaho Rebounds website
- CDC COVID-19 website
Follow DHW on Twitter, Facebook, and Instagram for daily updates and information you can trust.
The Idaho Department of Health and Welfare is dedicated to strengthening the health, safety, and independence of Idahoans. Learn more at healthandwelfare.idaho.gov.