The shares of corona vaccine manufacturers incurred great losses due to reports related to the development of the new strain of Corona virus, as it is not yet known how effective the vaccines are in facing the mutation of the virus.

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According to Arabiya Net, Moderna and BioNTech shares fell in trading yesterday, Tuesday, at a strong pace amid heavy trading, with the two stocks witnessing their worst daily performance since the market retreat in late November. With a drop of 9% and 5.5%, respectively, according to Bloomberg News.

The shares of Pfizer also fell by about 1.7%, so that the losses of the Corona vaccine manufacturers due to the new strain amounted to about $ 10 billion of the market value in one session, amid indications of the possibility of more From losses amid a state of fear afflicting global markets.

And many countries around the world rushed to impose new closures in the face of the new strain of the virus, which caused the market to plummet despite the fact that the results of testing the effectiveness of vaccines did not show their inability On the face of the new virus mutation.

and BioNTech said that its vaccine will be likely to be effective against the new strain, and that the tests may take about two weeks to confirm the effectiveness of the vaccine, which causes a return of calm Relative to the markets.

an analyst at Morgan Stanley said if the vaccines were ineffective, this would be a severe blow and negatively affect the performance of the markets, but it would increase the sales of vaccine companies in the coming period. p>

The shares of biotechnology and pharmaceutical companies have been on an upward trajectory since the beginning of this year with strong demand from individual investors, according to the agency.