Difference Between Covishield And Covaxin: The COVID-19 pandemic has impacted the world in ways that were unthinkable just a few years ago. In order to combat the virus, vaccines have been developed and made available to the public. Two of the most commonly used vaccines in India are Covishield and Covaxin. Different manufacturers have developed these vaccines and have different compositions. In this article, we will examine the differences and similarities between these two vaccines.
Difference Between Covishield And Covaxin
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Covishield and Covaxin are two COVID-19 vaccines that have been authorized for emergency use in India. Here are some of the differences between the two vaccines:
- Technology: Covishield is a viral vector vaccine developed by Oxford University and AstraZeneca, while Covaxin is an inactivated virus vaccine developed by Bharat Biotech in collaboration with the Indian Council of Medical Research (ICMR).
- Dosing Schedule: Covishield requires two doses given 12-16 weeks apart, while Covaxin requires two doses given 28 days apart.
- Storage and Transport: Covishield can be stored at temperatures between 2°C to 8°C, which makes it easier to store and transport compared to Covaxin, which requires storage at 2°C to 8°C as well.
- Efficacy: Both vaccines have been shown to be highly effective in preventing severe illness, hospitalization, and death from COVID-19, but the reported efficacy rates differ. Covishield has reported efficacy rates of around 70% after the second dose, while Covaxin has reported efficacy rates of around 80% after the second dose.
It’s important to note that both vaccines have undergone rigorous testing to ensure their safety and effectiveness, and the most important thing is to get vaccinated with any vaccine that is authorized and available to you. Vaccination is currently the best way to protect yourself and others from COVID-19.
Covishield
Covishield is the Indian version of the AstraZeneca-Oxford vaccine. It is a viral vector vaccine that uses a weakened version of a common cold virus (adenovirus) that infects chimpanzees. The adenovirus has been modified to contain the gene for the spike protein of the SARS-CoV-2 virus. When the vaccine is administered, the adenovirus enters the cells and releases the spike protein, which triggers an immune response. The immune system then produces antibodies that can recognize and attack the virus if the person is infected.
Covishield was developed by the Serum Institute of India in collaboration with the University of Oxford and AstraZeneca. The vaccine has been approved by the World Health Organization and has been found to be safe and effective in clinical trials. In India, Covishield has been approved by the Drug Controller General of India and is being administered as part of the national vaccination drive.
The efficacy of Covishield has been found to be around 70-80% in clinical trials. However, the vaccine has been found to be less effective against the Delta variant of the virus, which is currently the dominant strain in India. Covishield has also been associated with rare side effects such as blood clots and thrombocytopenia. However, the risk of these side effects is shallow and the benefits of the vaccine outweigh the risks.
Covaxin
Covaxin is an inactivated vaccine that uses a dead version of the SARS-CoV-2 virus to stimulate an immune response. The virus is grown in a lab and then treated with chemicals or heat to make it inactive. When the vaccine is administered, the dead virus triggers an immune response, which leads to the production of antibodies.
Covaxin was developed by Bharat Biotech, an Indian biotechnology company. The vaccine has been approved by the Drug Controller General of India and is being administered as part of the national vaccination drive.
The efficacy of Covaxin has been found to be around 81% in clinical trials. However, the vaccine has not been tested against the Delta variant of the virus. Covaxin has also been associated with rare side effects such as allergic reactions and Guillain-Barre syndrome. However, the risk of these side effects is shallow and the benefits of the vaccine outweigh the risks.
Composition Of Covishield And Covaxin
Covishield is a viral vector vaccine that uses a weakened version of a common cold virus to stimulate an immune response. Covaxin is an inactivated vaccine that uses a dead version of the SARS-CoV-2 virus to stimulate an immune response.
Read More: Advantages And Disadvantages Of Vaccines
The Difference Between Covishield And Covaxin
Sure, here’s a tabular comparison of Covishield and Covaxin based on their composition, development, efficacy, and side effects:
It’s important to note that both vaccines have been found to be safe and effective in clinical trials and are being administered as part of the national vaccination drive in India.
Conclusion
In this blog Difference Between Covishield And Covaxin, both Covishield and Covaxin are two COVID-19 vaccines that have been developed and made available to the public in India. While they differ in composition and development, they have both been found to be safe and effective in clinical trials. They are being administered as part of the national vaccination drive. It is important to note that both vaccines have rare side effects, but the benefits of getting vaccinated far outweigh the risks. It is recommended that individuals get vaccinated with the vaccine that is available to them and continue practicing COVID-19 safety measures such as wearing masks and social distancing, in order to help curb the spread of the virus.
FAQs On the Difference Between Covishield And Covaxin
Question 1.
Which COVID vaccine is better?
Answer:
All of the currently authorized COVID-19 vaccines have been shown to be highly effective in preventing severe illness, hospitalization, and death from COVID-19. The three main vaccines that have been authorized for emergency use in various countries around the world are:
- Pfizer-BioNTech COVID-19 vaccine
- Moderna COVID-19 vaccine
- Oxford-AstraZeneca COVID-19 vaccine
- It’s important to note that these vaccines have been tested in different populations and under different conditions, so it’s not possible to directly compare them. Additionally, each vaccine has its own unique storage and transportation requirements, which can affect its availability and distribution.
The most important thing is to get vaccinated with any vaccine that is authorized and available to you. Vaccination is currently the best way to protect yourself and others from COVID-19.
Question 2.
Are Covaxin and Covishield interchangeable?
Answer:
- Covaxin and Covishield are two different COVID-19 vaccines that have been authorized for emergency use in India.
- While both vaccines have been shown to be highly effective in preventing severe illness, hospitalization, and death from COVID-19, they are not interchangeable. This means that if you receive one vaccine as your first dose, you should receive the same vaccine as your second dose.
- The Indian government’s vaccination guidelines state that individuals who receive Covaxin as their first dose should receive Covaxin as their second dose, and those who receive Covishield as their first dose should receive Covishield as their second dose.
- This is because each vaccine has its own unique characteristics, including the way it stimulates the immune system and the optimal timing between doses. Switching between different vaccines could potentially reduce the effectiveness of the vaccination and may not provide the same level of protection.
Question 3.
Is the Covishield vaccine more effective?
Answer:
- The Covishield vaccine (also known as the Oxford-AstraZeneca vaccine) has been shown to be highly effective in preventing severe illness, hospitalization, and death from COVID-19. However, it is difficult to compare the effectiveness of different vaccines directly, as they have been tested under different conditions and in different populations.
- In clinical trials, the efficacy rate for the Covishield vaccine has been reported to be around 70% after the second dose. However, real-world data from countries where the vaccine has been widely used, such as the UK and India, suggest that the vaccine is highly effective in preventing severe illness and death, with efficacy rates of around 90%.
- It’s important to note that the effectiveness of any vaccine can also be influenced by factors such as the prevalence of new COVID-19 variants and the overall vaccination coverage in a population.
- Overall, both the Covishield vaccine and other authorized COVID-19 vaccines are highly effective and provide important protection against the virus. The most important thing is to get vaccinated with any vaccine that is authorized and available to you. Vaccination is currently the best way to protect yourself and others from COVID-19.
Question 4.
What type of vaccine is Covaxin?
Answer:
- Covaxin is an inactivated virus vaccine for COVID-19, developed by Bharat Biotech in collaboration with the Indian Council of Medical Research (ICMR).
- Inactivated virus vaccines work by using a virus that has been inactivated or killed, which is then used to trigger an immune response in the body without causing the disease. The inactivated virus used in Covaxin is the SARS-CoV-2 virus, which causes COVID-19.
- Covaxin is administered as an intramuscular injection, with two doses given 28 days apart. The vaccine has been shown to be highly effective in preventing severe illness, hospitalization, and death from COVID-19 in clinical trials and real-world data.
- It’s important to note that, like all vaccines, Covaxin may cause some side effects, but the benefits of vaccination outweigh the risks. Covaxin has been authorized for emergency use by the Indian regulatory authorities and is being used in India’s national vaccination campaign against COVID-19.
Question 5.
Why is Covishield better than Covaxin?
Answer:
- It is not appropriate to say that Covishield is better than Covaxin or vice versa, as both vaccines have been shown to be highly effective in preventing severe illness, hospitalization, and death from COVID-19.
- Covaxin is an inactivated virus vaccine developed by Bharat Biotech, while Covishield (also known as the Oxford-AstraZeneca vaccine) is a viral vector vaccine developed by Oxford University and AstraZeneca. These two vaccines work differently, but both have been authorized for emergency use in India and have undergone rigorous testing to ensure their safety and effectiveness.
- The Indian government has recommended that individuals receive the same vaccine for both doses, meaning that if an individual received Covaxin as their first dose, they should receive Covaxin as their second dose, and if they received Covishield as their first dose, they should receive Covishield as their second dose.
- The most important thing is to get vaccinated with any vaccine that is authorized and available to you. Vaccination is currently the best way to protect yourself and others from COVID-19.