Can common cold affect new crown epidemic? Yale experts: virus or interaction

Novel coronavirus pneumonia novel coronavirus pneumonia has been a hot topic of concern. So with the gradual arrival of autumn, many people even start to suffer from influenza. But does the common cold virus affect the prevalence of new crown pneumonia? Is it the novel coronavirus pneumonia that affects the interaction between the two viruses?

Let’s take a look at a study recently published by the team of Yale University Medical School in the Lancet medical journal. If we can activate the body’s defense capability – defense capability refers to the antiviral level, so that the rhinovirus that causes the common cold can prevent the infection of influenza virus. But there is another problem, the common cold virus is indeed seasonal, that is Will it have a similar effect on the new coronavirus?

In the study, a team from Yale Medical School focused on winter, when respiratory infections are high,

In the northern hemisphere, it is from November to march of the next year, and the case data of Yale New Haven Hospital from 2016 to 2019 are analyzed. Analysis showed that 7.2% of them were confirmed to be infected with rhinovirus, while 6.7% were confirmed to be infected with type A virus.

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You’re going back to the question, is there anyone who’s infected with both viruses at the same time? After further data research, the team found that very few people were co infected with both viruses at the same time. First, without any interaction,

The research team expected 67 people to be infected with both the virus and influenza A virus, but only 12 people were actually infected. So it means that they count the number of infected patients by week in turn, and we can see that there is a shift in the number of infected patients compared with virus infection and influenza A virus infection

.

Of course, only this study is not enough. The detection results of other viruses also show that there is a negative correlation between the prevalence of respiratory syncytial virus, human interstitial lung virus and parainfluenza virus.

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After observing the actual data, the research team began to carry out modeling. First, the team tested some interactions between rhinovirus and influenza virus through experiments. After that, they differentiated stem cells by culturing stem cells, and established some kind of epithelial respiratory epithelial tissue, which is also the main target tissue of respiratory virus infection. After reaching this conclusion, they inoculated them with virus, and then inoculated them with influenza A virus three days later. The results showed that after the respiratory tissue was exposed to rhinovirus, there was no influenza A virus infection The virus can’t infect the same tissue.

In fact, ordinary people should be able to find that the antiviral defense has been started before the arrival of influenza virus. Of course, Yale University professor of medicine also thinks that rhinovirus triggers antiviral components, interferon begins to produce, which is the early response of the immune system to the invasion of pathogens, and this effect will last for at least five days. So that’s why if you get this virus, you won’t get another virus.

So to some extent, this phenomenon can also explain the phenomenon during the outbreak of H1N1 in 2009, because the two will not interact with each other. Therefore, in the autumn of the common cold, there was no expected increase in influenza cases in Europe at that time.

The novel coronavirus pneumonia is a new variant of the virus, which is similar to the common influenza, and of course it is also very different. Now scientists are stepping up research on how to isolate the new coronavirus and further culture it in epithelial cells. But the initial affirmation is that the interaction between these viruses is generally impossible, so ordinary people don’t need to worry too much. But no matter scientists or ordinary people, they still need to wash their hands frequently, ventilate more, prevent colds and wear masks.

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