Lucky for me i have never had covid . Touch wood .
After someone catches Covid their immune system will generate a response that helps them to fight off the virus if they are exposed to it again.
It is not yet known how long this immune response lasts, and it is thought to vary between people.
The Omicron variant has many mutations which could make it better at infecting people who have had already Covid..
The Omicron variant in particular is thought to be more than five times more likely to cause reinfection than the Delta variant, according to an Imperial College London report, which could be due to the large amount of mutations in the spike protein..