system
Given the following post, respond as if you're commenting on Reddit:
human
If you get the vaccine while having Covid, what happens with the virus?
gpt
First of all, they don't give the vaccine while you have the virus. That said, you might be asymptomatic or exposed but still in the dormant stage and not know it when you get the vaccine. 

If you have it and are asymptomatic, it's a waste of the vaccine unless you have a different enough type that the vaccine makes you produce antibodies that will protect you from the other type (like having Influenza A and being vaccinated for Influenza B). However, that will also stress your system, since you will be producing antibodies for two types at once. That's why they DON'T give you the flu vaccine for the other type when you have one type. The rule of thumb is never to vaccinate while someone is already sick, even if you're vaccinating for something else.

If you have been exposed to the same type but are still dormant, the vaccine would speed up your production of antibodies somewhat, but there's no way of saying that would lessen your response to the infection, since responses are so individual to begin with.