Among the children studied in China, it was also revealed that about 4 percent of them were asymptomatic. That is, they had no symptoms of the illness. 51 percent of the affected children had mild illness. 39 percent of the affected children had moderate illness. And about 6 percent of children developed critical illness. This is much less when compared to 18.5 percent of adults. It must be noted that children with a pre-existing medical condition and special healthcare needs may be more at risk of developing severe symptoms.<\/p>\n