Do we know yet how long the covid vax is good for?

[Ms. Toad]

9. Flu shots are different.

The flu is actually a collection of diseases that share a name and similar characteristics. Each year a different strain, or strains come around. Researchers make an educated guess about which version will be circulating, and create a vaccine targeting that strain. So the reason for a new flu vaccine is that it is a different disease you are fighting each year, not that the vaccine wears off.

So far there are only a few strains of the coronary that impact humans in a serious way - SARS and MERS are the two I'm aware of. So this vaccine isn't targeting a collection of disease that are constantly changing - so the question will be primarily about how long the immunity lasts (like it is for the measles vaccine, for example), rather than the guessing game researchers play every year to create the influenza vaccine.