Doctors show what are the 'vaccine side effects' and why they are a good indicator!

After your first or second dose, you may experience a range of symptoms such as chills, fever, fatigue and mild pain. FDA-approved vaccines have these effects, but experts say this is not bad news at all. In fact, "side effects" are a good sign, but even if you have no symptoms, you do not have to worry that "the vaccine is not working".

 "No one should interpret the lack of side effects as an indication that the vaccine did nothing," said Dr Kathleen Jordan. 

Why do Covid-19 vaccines cause side effects?

Side effects are expected from all possible vaccines. These symptoms are a response to the vaccine and this is the desired effect. They are designed to treat your immune system in recognizing and fighting Covid. This may mean some temporary but perfectly normal dissatisfaction. Dr. Natasha Bhuyan does not even call them "side effects", but simply "post-vaccine symptoms". 

Science reported in November 2020 that if you did a two-dose vaccine and had a reaction to the first dose, you are more likely to experience more of the same reaction, in the second dose.

Do they all have the same post-vaccine symptoms?

Symptoms are more common in some people than in others. More side effects have been reported in younger age groups, but this does not mean that "the vaccine worked better in them". Protection is the same for everyone.

How long do the side effects of the Covid-19 vaccine last? Doctors say the symptoms last from 24 to 48 hours, but fade over time.

Doctors interviewed by Bustle: Natasha Bhuyan, Kathleen Jordan, John A. Sellick.