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Ciro de Quadros in September 2013.

Ciro Carlos Araujo de Quadros (January 30, 1940 – May 28, 2014) was a Brazilian leader in the field of Public Health, in particular, the area of vaccines and preventable diseases. He was born in Rio Pardo, Brazil.

Eradication of polio

De Quadros played a critical role in developing the strategies now used worldwide in the eradication of polio.

He led the team which eradicated polio from the Americas. He received a Medical Doctor degree from the Federal University for Health Sciences (UFCSPA), Porto Alegre, Brazil, 1966, and a M.P.H. degree from the National School of Public Health, Rio de Janeiro, Brazil, 1968.

Later work

In 2003, de Quadros joined the Sabin Vaccine Institute, a non-profit organization honoring the legacy of Albert Sabin, developer of the oral polio vaccine.

de Quadros is instrumental in the Institute's international immunization advocacy programs, where he works on issues such as the introduction of new vaccines, e.g. rotavirus, rubella, human papilloma virus, pneumococcal and others, and on issues related to the sustainability of national immunization programs.

He is also on the faculty at Johns Hopkins School of Hygiene and Public Health and the School of Medicine of the George Washington University.


Ciro de Quadros died from pancreatic cancer in 28 May 2014 in Washington, D.C., United States. He was 74.

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