Disease control experts say more evidence is needed as to whether the infection caused by Omi kerong can be considered a "big flu.".

Zhang Ying, deputy director of the Tianjin Municipal Center for Disease Control and Prevention, said: "Among the 361 positive infected people in Tianjin, 42% are ordinary types, and from the clinical diagnosis, there are manifestations of pneumonia. If there is pneumonia accounting for 42%, it cannot be equated with a large flu. Because we all know that the disease caused by influenza virus is dominated by the above respiratory symptoms, and people who will have chronic underlying diseases will have pneumonia, bacterial pneumonia or viral pneumonia, but that proportion is far less than 42% of such a composition ratio. Therefore, as far as the current epidemic situation in Tianjin is concerned, I personally still hold a wait-and-see view on whether it is a large influenza, and we still need to continue to observe it clinically. ”