Microbes and men : war and peace on mucous surfaces

The lectures took place from the end of November to the end of January. For this first year, I wanted to do a relatively generic block aimed at highlighting the notion of pathogens in relation to commensal microorganisms that colonize our surfaces, mucous membranes in particular, and to see how the immune system, particularly the innate immune system, interacts with these microorganisms and discriminates between commensals that need to be tolerated and pathogens that need to be recognized and destroyed. Hence the general title: "Of microbes and men: war and peace on mucous surfaces".