WHICH COVID19 VACCINE IS BEST

SOME FACTS ABOUT VARIOUS COVID VACCINES

COMMON SYMPTOMS AFTER TAKING THE VACCINE (symptoms may vary from person to person)

Covishield vaccine

• Pain, swelling, redness, itching, can be seen in injection site
• Feeling feverish/chills
• Feeling tired, Headache
• Flu like symptoms – sore throat, runny nose, high temp etc.

 Covaxin vaccine

• Pain, swelling, redness, stiffness, can be seen in injection site
• Feeling feverish, malaise, weakness
• Nausea /vomiting

Sputnik V vaccine

•          Pain, swelling, redness, itching can be seen in injection site
•          Flu like symptoms - sore throat, runny nose, high temperature etc.,
•          Headache and fatigue

 Pfizer vaccine

•          Pain at the site of injection
•          Chills
•          Headache
•          Joint pains
•          Tiredness
•          Fever

ABOUT MANUFACTURERS 

Covishield vaccine

Developed by Oxford – AstraZeneca and is being manufactured by the Serum Institute of India (SII)                   

Covaxin vaccine

Developed by Hyderabad – based Bharat Biotech International   Ltd.,

Sputnik V vaccine

Developed by the Gamaleya Research Institute of Epidemiology and Microbiology in Moscow.

Pfizer vaccine

Developed by BioNTech, a German company and collaborated with Pifzer , an American company, for support with clinical trials, logistics, and manufacturing.

 

Which covid 19 vaccine is best?

All vaccines are equally effective in protecting you against any serious COVID-19 related illness

Efficacy Rate

Covishield vaccine

It has an efficacy rate of 70.4% after 2^nd dose, which could be further pushed to 90% if doses are spaced weeks apart.

Covaxin vaccine

It has an efficacy rate of 78-81% after 2^nd dose.

Sputnik V vaccine

It has and efficacy rate of 91.6% after 2^nd dose.

Pfizer vaccine

It has efficacy rate of 90 to 94% after 2 doses.

Interval between 2 doses

Covishield vaccine

12-16 weeks

Covaxin vaccine

4-6 weeks

Sputnik V vaccine

Currently 21 days in Russia.

Pfizer vaccine

21 days

 

How is it made?

Covishield vaccine

It is made up of weakened version of a chimpanzee’s common cold viruses called adenovirus- ChAdox1. It has been modified to enable it to carry the corona virus spike protein into the cells of humans.

Covaxin vaccine

They contain inactivated corona viruses, which cannot infect a person but still can teach the immune system to prepare a defense mechanism against the active virus.

Sputnik V vaccine

It is 2 vector vaccines. This means that the vaccine uses two different kind of adenovirus vectors, rAs26 for first dose and rAds for second dose human common cold.

Pfizer vaccine

It is made up of mRNA (messenger RNA) NUCLEOSIDE MODIFIED mRNA

 

Hope this information is useful for you!