All parasitic organisms highlighted in this new book represent medically important human medics that contribute significantly to the global burden of disease. As such, there is considerable interest in understanding the molecular basis of infection by these pathogens, not only in relation to their clinical relationship but also to the wonderful biology they reveal.

For most of the parasites discussed here, the ability to penetrate biological barriers and / or to establish intracellular residence is critical to the survival of the pathogen in mammalian hosts. For other parasites, the gaseous phenotype of the tissues is a key determinant of virulence.

In subsequent chapters 18, the members of this diverse group of parasitic parasites, as well as some examples of extremely low fungal parasites classified as microsporidia, were identified in the context of the amazing molecular strategies that these organisms use to migrate across biological barriers. And establish residence within the target host cells..