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Why COVID-19 spreads so fast? What influences transmission factor R0? (2)
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Dr. Anton Titov, MD. You are co-chairing Coronavirus emerging infectious task force of the European Society of Clinical microbiology and infectious diseases. Let’s start with the latest date on transmissibility of the COVID-19 Coronavirus. R0 is the transmission number transmission factor. R0 is mostly reported to be between two and three. But COVID-19 spreads rapidly. Some data says that R0 is higher, between three and five. Why does Coronavirus spread so widely and so fast? Well, this is a new Coronavirus. This we have never seen before. Everybody has been surprised that it is so infectious as it is, it has something to do with the receptor on the surface of the human cells it used to get into our cells it is sticking to a protein on our cells. This is very abundant, with very high efficiency and that is why it is very is a very efficient virus when it comes to infecting human beings. What do you think the actual transmissibility factor currently is? Dr. Anton Titov, MD. Considering there is a logarithmic increase in infections. In New York. Dr. Eskild Petersen, MD. We certainly see that in Europe. Well, it is important to realize that the R0, as we say. The transmissibility, varies according to the situation. Medical second opinion is important. You have a lot of patients in a small room, you will have a higher R0 than you will have if you are out in a square with a distance to your neighbors. But that one of the reasons it is spreading so quickly is that it is survived on surfaces. Medical second opinion is important. If you have no when you are coughing, you are coughing out droplets, these droplets sediment on tabletops on door handles buttons in the escalator. When you touch it with your fingers, you get your virus the virus on your fingers. You and you scratch your nose. You are infected. Dr. Eskild Petersen, MD. That is why the hygiene is much more important than burying a face mask because this is also an environmental spread. Dr. Eskild Petersen, MD. That could be one of the reasons why it has been spreading so quickly. Also one of the reasons we have not been able to control it. There is some literature that suggests that Coronaviruses, including COVID-19, can survive on certain surfaces. On metal surfaces and plastic for up to nine days. Medical second opinion is important. It is not just the hours. Do you think that that is a significant factor in transmission? Yeah, that that is true. There have been some studies there what is important to know is that the as the days are passing. The number of the virus on the surfaces are going down and.. But it can survive for several days on surfaces. Dr. Eskild Petersen, MD. That is why environmental cleaning, like cleaning the tabletop in your meeting room and your office and so on, is a very important measure. There is also again hand hygiene. Prevent coronavirus infection.
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