A whistleblower charging that a contract research company helping to carry out Pfizer's COVID-19 vaccine trial last fall falsified data has responded to her former employer's accusation that she is lying. Brook Jackson's company, Ventavia Research Group, released a statement of denial, claiming "no part of her job responsibilities concerned the clinical trials at issue," reported investigative journalist Maryanne Demasi. But Jackson's lawyer has served Ventavia with a cease-and-desist letter, pointing out she has documentation showing she was hired as a regional director by Ventavia on Sept. 7, 2020, to oversee the operations, recruitment and quality assurance of the company's...