"Coronavirus" spread from asymptomatic people is rare
The head of the Emerging and Zoonotic Diseases Unit of the World Health Organization (WHO), Dr. Maria Van Kerkhov, told a press briefing in Geneva on Monday that it is rare for symptoms to appear on a person infected with the Coronavirus.
"From the data we have, it is still rare to transmit the Coronavirus from someone who has had no symptoms to a secondary person," Van Kerkhoff said.
"We have a number of reports, from different countries, that follow up on patients' contacts. And following the cases of asymptomatic people and those who are in contact with them, no secondary transmission appeared, it is very rare," she added.
Van Kerkhof added that the cases of people who do not show any symptoms of the Coronavirus are usually mild. She explained that they may not have developed a fever yet, or have not had a severe cough, or they may not have shortness of breath, but some suffer from a mild illness.
"After I said this, we know there could be people who don't really show symptoms," she noted.
An infectious disease specialist and associate professor of medicine and epidemiology at Yale University School of Medicine, Dr. Manisha Gothani, told CNN that many people with coronavirus, who appear to have no symptoms, may have mild or atypical symptoms, or even Advance symptoms.
During the press briefing, Van Kerkhof noted the difference between cases where symptoms appear before illness and those without symptoms throughout the period of infection.
A study in April found that transmission of the virus could begin two or three days before the patient's symptoms appear.
Therefore, the infectious disease specialist believes that if we apply quarantine, and we are in contact with patients who have contact with it, a major impact can be made during the global pandemic.
After tracking contacts of patients in Taiwan and Germany, the chief researcher at the Tsinghua University Medical School in Beijing, Babak Javed, explained that the transmission of the SK virus from a person with no symptoms is rare.
However, several studies, one of which is a German study, showed that infection can be transmitted before symptoms appear or during the first day of feeling sick.