We have few variants of vaccine namely Sputnik - V, Sinopham , Astrazeneca, CanSino BIO and Sinovac.
Which of these Covid 19 Vaccine is the best with least side effects and more effective protection against covid-19 ?
I would go for an mRNA vaccine. Pfizer or Moderna. I took Pfizer personally, about a month ago.
BTW,
covid-19 vaccines do not provide any 'protection' against covid-19 infections. What they do is make your immune system respond better when the infection does happen.
So in most cases, you will not even develop any noticeable symptoms when you do get infected with covid-19.
Our immune system is in constant war with pathogens entering our bodies.
Vaccines 'teach' the immune system how to fight against the otherwise 'unknown' pathogens.
Very few, if at all, vaccinated people will die due to covid-19 infections and the resulting complications.