How the vaccines work

[sprintcyclist]

A good article in yesterdays paper. Will rephrase it into my words.
'A normal flu affects the respiratory system. Nose and lungs.
Covid affects these areas but also enters the blood stream. Affects heart, kidneys, brain, blood vessel walls. You can have a stroke or heart attack, can get small clots in the tiny blood vessel in your lungs so you can't get enough oxygen.
The vaccines stop the blood borne phase of this disease..'

'From Sarah Marinos in the Health Section of the Sunday Mail.