title: in memory of Michele La Placa.
authors.forename: Roberto
authors.initials: R
authors.lastname: Cevenini
authors.forename: Maria Paola
authors.initials: MP
authors.lastname: Landini
authors.forename: Maria
authors.initials: M
authors.lastname: Carla Re
mesh_terms: D003141:Communicable Diseases / Q000266:history; D049673:History, 20th Century; D049674:History, 21st Century; D006801:Humans; D007558:Italy; D008829:Microbiology / Q000266:history*; D014773:Virology / Q000266:history*