Although lactoferrin has many biological functions, the host-protective effects against
pathogenic microorganisms including bacteria, fungi, and viruses are regarded as one of the
most important. Here, we review research on the protective role of lactoferrin administration
against common viral infections. Many studies have shown the in vitro antiviral activity of
lactoferrin against viral pathogens that cause common infections such as the common cold,
influenza, gastroenteritis, summer cold, and herpes, where lactoferrin inhibits mainly viral …