The main purpose of having a Covid vaccine is to drastically reduce the risk of becoming severely ill from coronavirus.
“Since vaccines were introduced in the UK, diseases like smallpox, polio and tetanus that used to kill or disable millions of people are either gone or seen very rarely,” noted the NHS.
“If people stop having vaccines, it’s possible for infectious diseases to quickly spread again.”
How do vaccines works
The NHS explained: “Vaccines teach your immune system how to create antibodies that protect you from diseases.