Iron-free apolactoferrin is more efficient in this function than hololactoferrin; and lactoferricin, which is responsible for antimicrobial properties of lactoferrin, shows almost no antiviral activity.
A apolactoferrina libre de ferro é máis eficiente nesta función do que a hololactoferrina; e a lactoferricina, que é responsable das propiedades antimicrobianas da lactoferrina, case non mostra actividade antiviral.