100: Over the century (1886-7) since identified. Incidence is 1 in 4 million/some report up to 8 million.
Answered 1/29/2013
5.8k views
Progeria: Per NIH, National Center for Advancing TTranslational Sciences- " It is estimated that at any one time, there are between 200-250 children living with progeria." REF: https://rarediseases.info.nih.gov/diseases/7467/progeria
Answered 9/7/2020
46 views
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