Some Differences Between Covishield and Covaxin Everyone Should Know

India started its Coronavirus vaccination campaign after two vaccines, one by Serum Institute and another by Bharat Biotech obtained clearance for restricted emergency use. This is a huge development in the battle against Coronavirus, as in the first stage of inoculation, almost three crore high-risk individuals will be vaccinated against Coronavirus. 

Vaccine centers would supply recipients with either Covishield or Covaxin without providing them a choice to select between the two. However, people can opt not to get vaccinated because inoculation is not necessary. So far, 1.1 crores Covishield and 55 lakh Covaxin vaccines have been procured by the government at a rate of Rs 200 and Rs 206 per injection, respectively.

Also Read: Bird Flu In India 2021: Here’s Everything You Need To Know About

Differences Between Covishield And Covaxin


Covishield was developed by Oxford University and the British-Swedish pharmaceutical firm AstraZeneca and produced by the Serum Institute in India. The Covishield frontrunner is processed and shipped at a cooling temperature of 2-8 degrees Celsius. In a pooled review of interim evidence from late-stage studies released in The Lancet, the vaccine has demonstrated an overall efficacy of 70.4 percent.

Covishield uses a chimpanzee viral vector deficient in replication, based on a weakened variant of a common cold virus (adenovirus) that triggers chimpanzee infections and carries the SARS-CoV-2 virus spike protein genetic content. The Subject Expert Committee (SEC) recommended two full doses of the vaccine given 4-6 weeks.

Data from phase 1 clinical trials performed on 23,745 overseas participants were submitted by the Serum Institute of India, indicating average effectiveness of 70.42 percent. 1,600 patients took part in phases two and three, which were performed in India, and the findings were similar to those of the first phase of the experiment as per the drug controller.

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Covaxin was developed by the Indian biotechnology firm Bharat Biotech and the Indian Council of Medical Science Clinical Research Body (ICMR). The NDTV study says Covaxin is an inactivated vaccine, one of the oldest strategies for vaccinating humans, indicating that it causes an immune response. The inactivated viruses are injected into the bloodstream. 

Covaxin is produced by inactivating the microorganisms that cause the disease through a chemical or physical process. This kills the capacity of the pathogen to replicate but leaves it alive so that it can still be detected and create an immune response by the immune system.

The study says that these whole batches of coronavirus must be grown, killed using a chemical or heat operation, and then it was converted into a vaccine.

Covaxin will be given at vaccination sites at the six central government hospitals in Mumbai. The consent form specified that, in the event of any significant side effects due to the vaccine, the beneficiaries must be given treatment in government-designated and approved hospitals. The vaccine is given in two doses and kept at 2-8° degrees Celsius.

Apart from its many animal trials, Bharat Biotech performed phase one and two experiments on 800 volunteers. The third trial is taking place and a total of 22,500 people have now taken part in it. The vaccine was found to be efficient and stable, the drug controller said.

As Union Health Minister Harsh Vardhan has already explained, India’s frontline staff will get the vaccine at no expense. Since many countries have expressed interest in all the vaccine candidates, the expense angle would also come at a later level of vaccination and even for other countries. Covishield will cost about Rs 400, CEO Adar Poonawalla of the Serum Institute said earlier. Bharat Biotech’s vaccine will likely cost less than Rs 100. There has been no final word on expense yet.

It is quite impossible to make a perfect vaccination that benefits everyone who receives it. Efficient vaccinations may cause certain adverse side effects but are often mild and easily clear up.

It is hard to predict how a body would react to the vaccination, although there are a few contraindications to certain vaccinations. The risk of severe side effects can be reduced when adhering to contraindications.

By July, the government aims to vaccinate 30 crore individuals, calling them a priority group. The Covid-19 vaccine shots will be given to the first batch of 3 crore individuals by March. The vaccination will be carried out by registering on Co-WIN, the digital portal established by government agencies to promote and monitor the Covid-19 pandemic campaign.

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See Also: Adar Poonawalla Reveals Prices Of Covid-19 Vaccines For Private Market And Government

Kriti Mehta
A writer who writes what one's feel.