Ciro de Quadros
Ciro Carlos Araujo de Quadros (30 January 1940 – 28 May 2014) was a Brazilian physician. He was a leader in the field of public health mainly in the area of vaccines and preventable diseases such as polio and smallpox. He was born in Rio Pardo, Rio Grande do Sul.
- "Ciro de Quadros, key figure in eradicating smallpox and polio, dies at 74". New Haven Register. Associated Press. 31 May 2014. Retrieved 1 June 2014.