A German study confirmed that a person infected with the Corona virus can infect others before the first symptoms of the disease appear on him. This came in the study published by the British scientific journal, "The Lancet Infectious Diseases", and the study was based on a detailed analysis carried out by scientists of infection chains in the first group of people who contracted the disease in Germany four months ago.
The study was conducted by a team headed by Merle Böhmer from the Bavarian State of Health and Food Security, Udo Buchholz from the Robert Koch Institute for Virology Research and Victor Korman from the Charette Hospital in Berlin.
The scientists who prepared the study stated that the transmission of infection from the injured person to others before the symptoms appeared on the person, occurred in at least one of the sixteen cases that were included in the study, and the researchers suggested that this matter had happened in five other cases.
The researchers added that in at least four cases the infection was transmitted to other people on the same day that symptoms began to appear on the affected person, and they suggested that this could happen in five other cases.
The researchers concluded that the increased risk of infection before the onset of symptoms or shortly after their appearance puts health measures in front of great challenges, as they saw that the incubation period, which averaged four days, was very short for many people, and the researchers emphasized that "it has It would be difficult to achieve universal containment for Covid-19.
It is noteworthy that the first cases of Corona virus infections in Germany, which were the subject of study, appeared in the company Vipasto for car accessories, and the cases appeared after a Chinese colleague arrived at the company on a working visit last January and transmitted the infection to employees of the company.

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