Kirstjen Nielsen

Official portrait, 2018 Kirstjen Michele Nielsen (; born May 14, 1972) is an American attorney who served as United States Secretary of Homeland Security from 2017 to 2019. She is a former principal White House deputy chief of staff to President Donald Trump and was chief of staff to John F. Kelly during his tenure as Secretary of Homeland Security.

Nielsen was confirmed as Secretary of Homeland Security on December 5, 2017. Nielsen implemented the Trump administration family separation policy. She resigned in April 2019. Provided by Wikipedia
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    Pulmonary granuloma formation during latent Cryptococcus neoformans infection in C3HeB/FeJ mice involves progression through three immunological phases

    Pulmonary granuloma formation during latent Cryptococcus neoformans infection in C3HeB/FeJ mice involves progression through three immunological phases by Jovany J. Betancourt, Minna Ding, J. Marina Yoder, Issa Mutyaba, Hannah M. Atkins, Gabriela De la Cruz, David B. Meya, Kirsten Nielsen

    Published 2025-02-01
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