In an academic semester, living in social isolation and under restrictions of the pandemic, we organized weekly multidisciplinary seminars from a postgraduate course program in Curitiba, Southern Brazil, integrating students from different regions of Brazil and South America. Outstanding researchers from Brazil, Germany, France, Argentina, Mexico,…

The Fifteenth International Congress on Hygiene and Demography, held in Washington City in the autumn of 1912, was a notable event in the history of sanitation and in the discussion of the conditions of the physical and mental health of the people. The exhibition held in connection with the congress was instructive in many ways, and contained much…