
The Maria de Nazareth Meirelles Medal for Female Merit in Science aims to recognize the contribution of women who have marked and continue to mark the scientific trajectory of the Oswaldo Cruz Institute (IOC/Fiocruz).
The first edition of the tribute took place on August 5, 2025, at second act of the Symposium IOC Jubilee 125 years, during the fifth edition of the Somos Manguinhos project.
On the occasion, 15 researchers received the award: Ana Jansen, Anna Kohn, Delir Corrêa, Elba Lemos, Helene Santos Barbosa, Margareth Dalcolmo, Marilda Siqueira, Marilza Maia Herzog, Mariza Morgado, Marli Maria Lima, Martha Pereira, Miriam Tendler, Monika Barth, Rita Nogueira and Yara Traub-Cseko.

Maria de Nazareth Silveira Leal de Meirelles (1936–2019) was a researcher at the IOC for more than three decades, highlighting his studies on Chagas disease and the consolidation of electron microscopy at the Institute.
Graduated in Natural History from the State University of Rio de Janeiro (UERJ), she completed her master's and doctorate at the Federal University of Rio de Janeiro (UFRJ) and published more than 130 scientific articles.

She was vice-director of the IOC, headed laboratories and coordinated the Postgraduate Program in Parasite Biology, in addition to supervising dozens of dissertations and theses, shaping generations of scientists. Mother of seven and educator of nearly 900 "academic children," Nazareth symbolizes the balance between motherhood, leadership, and scientific excellence, becoming an inspiration to women both within and outside of science.


The Maria de Nazareth Meirelles Medal for Female Merit in Science aims to recognize the contribution of women who have marked and continue to mark the scientific trajectory of the Oswaldo Cruz Institute (IOC/Fiocruz).
The first edition of the tribute took place on August 5, 2025, at second act of the Symposium IOC Jubilee 125 years, during the fifth edition of the Somos Manguinhos project.
On the occasion, 15 researchers received the award: Ana Jansen, Anna Kohn, Delir Corrêa, Elba Lemos, Helene Santos Barbosa, Margareth Dalcolmo, Marilda Siqueira, Marilza Maia Herzog, Mariza Morgado, Marli Maria Lima, Martha Pereira, Miriam Tendler, Monika Barth, Rita Nogueira and Yara Traub-Cseko.

Maria de Nazareth Silveira Leal de Meirelles (1936–2019) was a researcher at the IOC for more than three decades, highlighting his studies on Chagas disease and the consolidation of electron microscopy at the Institute.
Graduated in Natural History from the State University of Rio de Janeiro (UERJ), she completed her master's and doctorate at the Federal University of Rio de Janeiro (UFRJ) and published more than 130 scientific articles.

She was vice-director of the IOC, headed laboratories and coordinated the Postgraduate Program in Parasite Biology, in addition to supervising dozens of dissertations and theses, shaping generations of scientists. Mother of seven and educator of nearly 900 "academic children," Nazareth symbolizes the balance between motherhood, leadership, and scientific excellence, becoming an inspiration to women both within and outside of science.

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