Cyrus Poonawalla, chairman of Serum Institute of India (SII), which makes Covishield, has opposed the vaccine cocktail. Poonawalla said on Friday that I am against mixing two different vaccines for better efficacy. There's no need for it.
In the study of the Indian Council of Medical Research (ICMR), the results of the cocktail of Covishield and Covaxin have been effective. To this question, Poonawalla said, "If cocktail vaccines are given and the result is not good, then we will say that another vaccine was not good. On the contrary, another company may say that since you have mixed the serum vaccine, the results are not good.' He further said that thousands of people were involved in the trial of the vaccine cocktail, in which its efficacy was not good.
The results of the first study on the mixing of corona vaccine in the country were released by ICMR five days ago. The study said that a mixed dose of Covaxin and CoviShield provides better protection against the coronavirus.
According to ICMR, it is safe to take a mixed dose of Adenovirus Vector Platform Vaccine and Inactivated Whole Virus Vaccine. Different doses of these two vaccines give better immunity than two doses of the same vaccine.
This study of corona vaccine mixing was done by ICMR in the middle of May-June in UP. The expert panel of DCGI recommended a study of mixed doses of CoveShield and Covaxin. After this, Christian Medical College Vellore was also allowed a mixed trial dose of the vaccine.
Bharat Biotech's Nasal Vaccine (given via nasal spray) against Corona has got permission for the second and third phase clinical trials. In the first phase, the trial of this vaccine has been done on the age group of 18 to 60 years.
At present, three vaccines are available in the country, Bharat Biotech's Covaxin, Serum Institute's Covishield and Russia's Sputnik V. The government has also approved Moderna's mRNA vaccine and Johnson & Johnson's single-dose vaccine for use.
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