- Small sample size
- Only included infants who were hospitalized
- Lack of including asymptomatic infants


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

Only 9 infants were identified with COVID-19 in China between December 8, 2019 and February 6, 2020. This small number of infected infants is potentially due to infants having a lower risk of COVID-19 exposure or due to infants potentially having asymptomatic COVID-19.

University of Michigan - Ann Arbor

- Infants (Under 1 Year)
- Children (1-14 years)
- Youth (15-24 years)
- Adults (25-64 years)
- Seniors (65 years and over)

Classification of COVID-19 Studies in China by Age Groups

Classification of COVID-19 Studies on Infants (Under 1 Year) in Asia by Country

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

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

In this study, four full-term infants were born to pregnant women who had COIVD-19 in Wuhan, China. None of the infants tested positive for the virus, or developed symptoms such as fever, cough, or diarrhea. In a past study, five infants who were born to mothers who had SARS (during the outbreak in the early 2000s) were not detected to have the virus. 

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