Covishield vaccine side effects: In India, this vaccine was produced by the Serum Institute of India (SII). SII had signed an agreement with AstraZeneca even before the vaccine came into the market.
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Covishield vaccine side effects |
AstraZeneca Covid Vaccine Side Effects
Amidst all the claims of side effects of the vaccine used to protect against coronavirus, Covishield vaccine manufacturing company AstraZeneca has made a big disclosure in the British court. The company has acknowledged for the first time in court documents that the COVID-19 vaccine may have side effects. However, the company claims that the number of cases of such side effects is much less. Let us now know when and after how many trials the Covishield vaccine was approved.
The vaccines of Oxford and AstraZeneca were made in India by the Serum Institute of India under the name Covishield. Covishield was prepared using the viral vector platform. This was a completely different technology. Covishield was made using the adenovirus of the common cold infection found in chimpanzees. The genetic material of the adenovirus is similar to that of the spike protein of the SARS-CoV-2 coronavirus. The virus enters the body's cells only through the spike protein. Covishield was made similar to the vaccine that fights the Ebola virus.
In how many stages was Covishield made?
Serum Institute conducted the first phase clinical trial on more than 23,745 people. Its results showed it to be 70.42 percent effective. Its second and third phase trials were conducted on 1600 people. AstraZeneca announced the results of its Phase-3 clinical trials on 23 November 2020. According to this, when one half and one full dose was given, it was effective up to 90%. At the same time, it was 62% effective after giving two full doses. After this, the government approved the vaccination program and vaccination started on 16 January 2021. Some of those who were given the vaccine during the trial reported headaches and mild fever. Which was cured within a few days with normal medicine.
In how many stages is human testing done?
Testing of a vaccine on humans takes place in a total of four phases. In the first phase, an attempt is made to find out whether the vaccine has any side effects. That means, is the vaccine safe and can humans take it easily or not? In the second phase, it will be seen whether the entry of the vaccine into the body is proving helpful in increasing immunity or not. So that humans can fight this virus. In the third phase, researchers confirm their findings whether the vaccine created by them proved to be correct or not. This is considered the most important final stage. In the fourth phase, researchers keep an eye on the effect of the vaccine in the real world to see whether the vaccine is proving effective or not.
What is the gap between the two doses?
What is the whole controversy?
People always talk about the side effects of Covid vaccine but till now no one is serious about its side effects. In documents filed with the UK High Court on Monday 29 April, AstraZeneca admitted for the first time that its COVID-19 vaccine could cause side effects. This can lead to heart attack, brain stroke, and reduction in platelets. In most countries, the AstraZeneca vaccine was sold under the name Covishield. Even when AstraZeneca's Covid-19 vaccine was launched, there was a lot of controversy regarding its side effects.
Congress leader Rahul Gandhi had said that the COVID-19 vaccine was made in a hurry. All its phases were not even allowed to be completed. However, the company had said at that time that no serious side effects of the vaccine were observed during the trial. It was told that after vaccination, symptoms like fatigue, mild fever, and sore throat were observed. But no case of death or serious illness was reported.
Who made the Covishield vaccine in India?
In India, this vaccine was produced by the Serum Institute of India (SII). SII had signed an agreement with AstraZeneca even before the vaccine came into the market. It is known that Serum Institute is the world's largest vaccine manufacturing company. About 80 percent of the vaccine doses in India are Covishield alone.
How long can there be pain after taking corona vaccine?
After the rollout of any vaccine, AEFI i.e. After Events Following Immunization is seen. Similarly, the Government of India monitored the Corona vaccination for a long time. Create a portal. Committee formed. This was seen from time to time. Now after the news regarding AstraZeneca, India's Covishield is under question, although experts believe that it does not have such a long effect. If any problem occurs, it either appears immediately after the vaccine or the effect starts appearing after a month to one and a half months. Even if the effect is visible, the percentage of AEFI after vaccination in India is 0.007%. So now there is nothing to fear.
Not many complaints of complications in India
The Government of India created the AEFI portal after the rollout of the Corona vaccine. Along with this, an AEFI committee was also formed. This committee last submitted its report in May 2022. This report was about those who had complained of complications after taking the Corona vaccine. So the problem was not only with Covishield but also with Sputnik, Covaxin, and Corbevax. People have complained about their problems after taking these vaccines and after going on the internet, you can also see these documents if you just type AEFI.
What is blood clotting?
The condition of blood clots is called thrombosis and it can occur anywhere in the body such as in veins, arteries, or inside the heart. Due to this, blood does not flow properly in the body parts. Some changes can be made in lifestyle to avoid blood clotting. Due to thrombosis, the risk of heart attack, brain stroke, and falling platelets increases.
What can be the side effects of Covishield?
The kind of claims being made regarding Covishield were already known, however, compared to its benefits, the percentage of loss was very low which can be considered negligible. According to the Serum Institute, after getting the vaccine, you may have the problem of fainting or dizziness. Apart from this, there may be problems of change in heartbeat, shortness of breath, or whistling sound while breathing. The problem of swelling of lips, face, or throat may also appear. The company says that after vaccination, more than one side effect may be seen at the same time. These include pain in muscles or joints, headache, and tremors. The company has advised you to consult your doctor in this situation. The company says that these problems can happen to one in 10 people.
The company has also said that after vaccination, symptoms like swelling or redness at the injection site, fever, vomiting or diarrhea, pain in hands and feet, or high fever, sore throat, runny nose, cough, or shivering may occur. Can also come.
What has AstraZeneca said?
According to AstraZeneca, the AZ vaccination may cause TTS in very rare circumstances. AstraZeneca has stated "It is believed that the AZ vaccine may, in very rare cases, cause TTS. Additionally, TTS may occur in the absence of the AZ vaccine (or any vaccine)." AstraZeneca has agreed to the legal defense of Scott's claim, which could lead to payments to victims and bereaved relatives.
