What if the patient took two doses of two different vaccines? Corona experts answer


Health experts suggested that a combination of two different Corona vaccines be done, for example, if the patient takes the first dose of the Astrazhnica vaccine, then the second dose of Novavax.

This proposal comes amid calls to increase the frequency of vaccination, but the logistical hurdle prevents this from being achieved, in addition to the emergence of new modifications of the Corona virus.

There are about 69 vaccines in preparation all over the world, and most of these vaccines are designed to be given in two or more doses.

A newspaper report said, “Los Angeles Times“, The University of Oxford in Britain has begun a study on 800 people aged 50 years and over, to test the possibility of mixing vaccines.

Scientists are testing vaccine systems made of different formulations and time periods from those currently in Britain.

In announcing the trial of mixing the vaccine, the doctor, Matthew Snape, cited experiments conducted on mice, in which the combination of the Pfizer and AstraZeneca vaccine enhanced immunity better than two doses of the same vaccine, and it may work in humans as well.

The results of the study are expected to be officially published next June.

The study encouraged scientists to believe that mixing vaccines might boost the body’s immunity. Mismatched vaccine regimens could not only generate equivalent antibodies, but also boost the production of CD8 + T-cells, according to experts.

These T cells also have a long and specific memory of what the Corona virus looks like. This means that immunity may last longer.

Although mixing the vaccines awakened these T cells in mice, the same immune response has not definitively appeared in humans yet.

The Corona virus has killed two million and 518 thousand and eighty people in the world since the WHO office in China reported the outbreak of the disease at the end of December 2019.

More than 113 million 374 thousand and 410 people have been confirmed infected with the virus since its appearance, and at least 69 million and 506 thousand and one hundred people have recovered.


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