Many people are worried about reports of “breakthrough” Covid-19 infections overseas, from places like Israel and the United States.
A breakthrough infection is when someone tests positive for Covid after being fully vaccinated, regardless of symptoms.
The good news is most breakthrough infections usually result in mild symptoms or none at all, which shows us that vaccines are doing exactly what they’re supposed to do — protecting us from severe disease and death. Vaccines aren’t designed to protect us from getting infected at all (known as “sterilising immunity”).
People with breakthrough infections can go on to infect others. Preliminary evidence indicates immunised people can have high levels of virus in the nose, potentially as high as unvaccinated people.
However, if you’re vaccinated you’ll clear the virus more quickly, reducing the length of time you’re infectious and can pass the virus on.
Here’s why breakthrough cases are happening, and why you shouldn’t worry too much. (Yahoo)