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"Yan Limeng, is a Chinese ophthalmologist and virologist who claims as part of her work to have been aware of person to person transmission of COVID-19 in late December 2019 and to have tried to communicate the risks to those higher up the chain of command in January 2020. She alleges that the Chinese government and the World Health Organization (WHO) knew about the person-to-person transmission of COVID-19 earlier than they reported or made public, and suppressed both her research and others.[4] After her public appearance and reports about COVID-19, Yan's mother was arrested by the Chinese authority.[5]" the wiki