The Grassi HALL of the Isola Sacra Conference Center takes its name from Giovanni Battista Grassi, an illustrious Italian doctor, zoologist, botanist, entomologist and academic.
His most important contribution to medicine was the demonstration of the transmission of malaria plasmids by mosquitoes of the genus Anopheles, through their salivary glands. In recognition of his discoveries in 1908 he was made a senator and spent the last years of his life in malaria control right here in Fiumicino. In 1918, he founded, in fact, a “Malaria Observatory” where he studied the mosquito’s flying habits and made a large epidemiological study on the incidence of malaria in our area, suggesting various methods of controlling it. The hospital of the neighboring Ostia is named in his name.