TLR2 and Pneumovirus Infections: In mice models, nasal instillation of Staphylococcus aureus attenuates influenza-mediated lethal inflammation in the lungs by inducing M2 alveolar macrophages24, and Lactobacillus plantarum administration protects against lethal pneumovirus infection in the lungs by TLR2 and NOD2 receptor signaling25.