In India, Covishield and Covaxin are being utilized to vaccinate people against the deadly coronavirus. Covaxin has been developed by Bharat Biotech whereas Serum Institute has developed the Covishield. Some difference can be seen with both the vaccine quite naturally. However, there are few similarities as well.
Following to the vaccination of the healthcare workers all over the India, officials have started to vaccinate elderly people over the age of 60 in addition to people with co-morbidity.

Platform

Covaxin can be defined as inactivated vaccine. Bharat Biotech International Limited from Hyderabad has developed the vaccine while collaborating with the Indian Council of Medical Research and National Institute of Virology, Pune. Tried and tested platform of dead virus is used as a base on the occasion.
Technology of Whole-Virion Inactivated Vero Cell derived platform has been utilized. Replication is not seen on the occasion. Therefore, revert process may not be observed at all. Pathological effects may not be caused also. Use of dead virus is noticed that may not be capable of infecting people. However, immune system is instructed to create a defense against a possible infection.
For more than a decade, use of inactive vaccine can be noticed in the medical arena. Several vaccines have been created for polio, rabies, influenza, Japanese encephalitis and pertussis by using the same technology in the past.
Regarding Covishield, use of viral vector platform can be observed. On the occasion, chimpanzee adenovirus named ChAdOx1 is utilized as a vector. Later on, it has been modified to carry forward the spike protein of the coronavirus to the human cells. Cold virus injected in the body is completely harmless. However, an instruction module is used to fight it out with the coronavius and other similar kind of virus. To the body, instruction is given to protect you against coronavirus and other viruses. It is a platform that has been utilized after the outbreak of Ebola as well.

Regime for Dosage

Two shots of vaccines have to be taken with a gap of minimum 28 days in case of both Covaxin and Covishield.

Storage

Requirement of sub-zero temperature may not be needed for storage with both the vaccines. It is a liquid that comes in a multi-dose vial. To keep the vaccine safe, it has to be stored in 2 to 8 degree Celsius.

Effectiveness

During studies, Covaxin has shown protective and strong immunogenicity in the animals like hamster and other primate animals. However, efficacy percentage is still not available for the human yet as phase III trials have not been completed.
In case of Covishield, 62% of efficacy can be noticed.

Approvals

Use of Covishield is restricted to emergency uses only. People at the age of 18 and above can take the vaccine.
In case of Covaxin, authorization is given for restricted use during a clinical trial mode

Pricing

Both Covaxin and Covisheild is intramuscular vaccine that are being given from Governmental Hospital at free of cost. However, private hospitals can be about Rs. 250 for the vaccination.