- When children play outside in the park/schoolyard, they develop antibodies to potential pathogens that could aid in protection against COVID-19
- ACE2
     - Virus binds to ACE2 receptors on the cell membrane
     - Children have higher amounts of ACE in their bodies, which has the opposite effect of 
        ACE2 (less ACE2)
- Chronic illnesses are greater at old age, increasing the number of fatalities in adults with COVID-19 
- Children have healthy lung tissue, as they are less exposed to pollution and smoking


Michigan State University

Figure shows the death rate of people of different age ranges due to COVID-19.
- Green --> very low death rate
- Yellow --> low death rate
- Orange --> Slightly high death rate
- Red --> very high death rate

Different age groups and COVID-19 morbiditiy

S. Rehman, T. Majeed, M. A. Ansari et al., Current scenario of COVID-19 in pediatric age group and physiology of immune and
thymus response, Saudi Journal of Biological Sciences, https://doi.org/10.1016/j.sjbs.2020.05.024

Current scenario of COVID-19 in pediatric age group and physiology of immune and thymus response


Reasons to why children are less likely to develop COVID-19

- More active in children
- Shrinks as we age
- Contains T cells and plasma cells
- Plasma cells produce immunoglobulin G, an antibody
- IgG3 and 1 provide immunity against some viral infections

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