[Factors of the onset of infectious diseases]

analisi statistica analyse statistique animal animales animali animals aplicaciones del ordenador application des ordinateurs bacteriose bacterioses bacteriosis batteriosi computer applications disease transmission environmental factors epidemiologia epidemiologie epidemiology facteur du milieu factores ambientales fattori ambientali hosts infecciones por protozoos infezioni da protozoi mathematical models modelli matematici ospiti population density protozoal infections protozoose statistical analysis transmission des maladies trasmissione delle malattie virose viroses virosi virosis