The SARS-CoV-2 coronavirus, which causes the COVID-19 disease, was found to be “weaker” than the rhinoviruses that cause the common cold. 

A team of British scientists from the University of Glasgow have found that the common rhinovirus, which causes colds, was stronger than Covid-19.

Many viruses are highly selfish and tend to drive competitors out of infected cells. Among these are influenza viruses.

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In their experiment, scientists took a copy of the mucous membrane of the respiratory tract and staged a “battle” between SARS-CoV-2 and rhinoviruses in it. 

As it turned out, rhinovirus successfully inhibits coronavirus if infection occurred at the same time.

Another infection showed similar results, but this time SARS-CoV-2 had a head start of 24 hours. Despite this, the rhinovirus was still stronger. 

When the rhinovirus was given a head start for 24 hours, the coronavirus had no chance at all. 

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“Sars-CoV-2 never takes off, it is heavily inhibited by rhinovirus. This is absolutely exciting because if you have a high prevalence of rhinovirus, it could stop new Sars-CoV-2 infections,” said Dr. Pablo Murcia. 

Further research showed that the reason for this phenomenon was that the viruses of the common cold triggered intracellular immunity, which blocked the ability of the coronavirus to reproduce. 

However, when the immune response to the common cold wore off, the cells again became vulnerable to COVID-19.

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The results of the study have been published in the Journal of Infectious Diseases.