Covaxin is developed by Bharat Biotech and it is India’s first indigenous vaccine against Covid-19.

Bharat Biotech has developed this vaccine in collaboration with the Indian Council of Medical Research and National Institute of Virology.

It is an inactivated vaccine which is developed by inactivating (killing) the live microorganisims that cause the disease.

This destroys the ability of the pathogen to replicate, but keeps it intact so that the immune system can still recognise it and produce an immune response.


Covishield has been developed by Oxford University in collaboration with Astrazeneca.

Pune-based Serum Institute of India is their manufacturing and trial partner.

It uses a replication-deficient chimpanzee viral vector based on a weakened version of a common cold virus.

This virus causes infections in chimpanzees and contains the genetic material of the SARS-CoV-2 virus spike protein.


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