Ages ranged from 1 month to 11 months of age. 

University of Michigan - Ann Arbor

Between December 8, 2019, and February 6, 2020, 9 infants were identified as testing positive for COVID-19 and being hospitalized. 

Case Demographics of Infants in China with COVID-19

Wei, M., Yuan, J., Lui, Y., Fu, T., Yu, X., Zhang, Zhang, ZJ. (2020). Novel Coronavirus Infection in Hospitalized Infants Under 1 Year of Age in China. Journal of the American Medical Association, 323(13), 1313-1314.
https://doi.org/10.1001/jama.2020.2131 

https://jamanetwork.com/journals/jama/fullarticle/2761659

Novel Coronavirus Infection in Hospitalized Infants Under 1 Year of Age in China

Age Characteristics of Infants in China with COVID-19

Seven patients were female and two patients were male. 

Sex Characteristics of Infants in China with COVID-19

Two infants were from Beijing, 2 infants from Hainan, and 1 from Guangdong, Anhui, Shanghai, Zhejiang, and Guizhou.

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