The largest paper this review includes is by the Chinese Novel Coronavirus Pneumonia Emergency Response Epidemiology Team with 72,314 patients. Only 2% of the 44, 672 confirmed cases of COVID‐19 were children.

Smith College

This literature review looked at 45 scientific papers and articles (largely from China). Children, as of March, 23, 2020, have accounted for 1-5% of diagnosed COVID-19 cases. In general, children seem to have milder symptoms that rarely result in death. 

Systematic review of COVID‐19 in children shows milder cases and a better prognosis than adults

Ludvigsson, J. F. (2020). Systematic review of COVID‐19 in children shows milder cases and a better prognosis than adults. Acta Paediatrica, 109(6), 1088-1095. doi:10.1111/apa.15270
https://onlinelibrary.wiley.com/doi/full/10.1111/apa.15270

The most common symptoms that 171 children with COVID-19 (in a specific study) had were cough (48.5%), throat redness (46.2%), and a fever of at least 37.5°C (41.5%). Less common symptoms were diarrhea (8.8%), and fatigue (7.6%). 

Symptoms of children with COVID-19 seen in "Systematic review of COVID‐19 in children shows milder cases and a better prognosis than adults"

In a large scale study of 44,672 confirmed COVID-19 cases (both in children and in adults), there were 965 deaths. Only one 14 year old boy died out of the 965 deaths. 

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