According to this study published in the Science Journal, 86 % of all cases of Coronavirus were unknown before travel was banned in Wuhan on 23 January.
According to a study, the coronavirus spread rapidly in China due to unknown cases. Many of these cases did not show serious symptoms of the coronavirus.
According to this study published in the Science Journal, 86 % of all cases of coronavirus were unknown before travel was banned in Wuhan on 23 January. According to scientists at Columbia University in the US, “the rapid spread of coronavirus in China was caused by people who had mild, limited or no symptoms and their cases remained unknown.”
There will be a big challenge in prevention
Jeffrey Shaman, the co-author of the study and professor at Columbia University Mailman School, said, “Unknown cases based on infectiousness and numbers can infect a large part of the population with the virus.” The researchers found that the number of unidentified people infected with coronavirus in China is high. Therefore, secretly transmitted infections will continue to be a major challenge in the prevention of this virus further.
Computer model used
The researchers used a computer model to study known cases of infection and prevalence in China and their mobility data from 11 to 23 January and 24 to 8 February. Shaman said the tremendous awareness, increased use of private security measures and travel restrictions helped to reduce the intensity of the infection. However, it is not clear whether this decrease in intensity is sufficient to completely stop the spread of the virus. He further said that if the coronavirus spread on the lines of 2009 H1N1 influenza, it would also spread worldwide and become the fifth endemic coronavirus in human population.