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Closed borders and hard controls on those who can enter the country are two methods used by various countries to stop the coronavirus. Despite this, almost every country in the world has been affected by the infection.
In a published study In Nature 2006, long before the new coronavirus occurred, a research group at Imperial College London shows that border controls can only postpone an outbreak, not stop it.
The study shows how virus-borne infections move across borders and reproduce along with several others at the Frankfurter Allgemeine. In a simulation of how infections spread, the researchers show that what matters most is that efforts are made early. Effective border control can delay the spread of infection to the country itself for a few weeks, provided there are only a few cases in the country from before. Once the outbreak is in progress, such efforts are not effective.
The study shows that with good reason The measures can spread the infection more frequently in almost two months.
According to the model developed by the group, when checking the temperature of the passengers, 46 percent of those who actually carry the infection will be lost.
This is because many people with the infection initially show no symptoms or fever.
Another research group under led by Matteo Chinazzi has shown that China’s closure of Wuhan reduced the spread of the infection to the rest of the world by 77 percent, but was unable to stop it. It had already begun to spread internally in China and was then taken from other Chinese cities to where Wuhan travelers headed before the closure was a fact.
More and more information also shows that the infection reached Europe before the New Year, but in the form of isolated cases that received no attention.
According to the researchers, only travel restrictions work in combination with other measures, such as physical distance and isolation.
