A breakthrough infection occurswhen a fully vaccinated individual gets infected.
You’re considered fully vaccinated at least 14 days after receiving all recommended doses of a COVID-19 vaccine.
Breakthrough cases are not unique to COVID-19.

Tetra Images / Getty Images
If you do get infected after vaccination, you likely won’t experience a severe case and require hospitalization.
But what should you do if you’ve been exposed to COVID-19 or test positive after being fully vaccinated?
Here’s what you’re gonna wanna know.
When Should You Get Tested After Exposure?
The recommendation for fully vaccinated individuals is to get tested three to five days after exposure.
What If You Test Positive?
But those with a positive result should isolate.
However, the duration of isolation can vary depending on the symptoms and severity of your case.
Generally speaking, there isno need to retest after COVID infection, Lipps says.
Taking over-the-counter medications such as ibuprofen or acetaminophen may also help reduce fever and relieve discomfort.
you’re able to find a testing site near youhere.
When Can You Stop Isolating?
The length of time for a quarantine period isnt the same for every person with a breakthrough case.
Quarantine is contingent on whether your fever has resolved and other symptoms have improved.
Its best to consult with an infectious disease expert for further advice on when to end your quarantine.
Does This Mean the Vaccines Aren’t Effective?
The vaccines remain highly effective against COVID-19, but they cannot provide full protection against infection.
For the most recent updates on COVID-19, visit ourcoronavirus news page.
Centers for Disease Control and Prevention.Contract Tracing Plan.
Centers for Disease Control and Prevention.Ending Isolation and Precautions for People with COVID-19: Interim Guidance.
Centers for Disease Control and Prevention.Treatments Your Healthcare Provider Might Recommend if You Are Sick.