"Microbiological Techniques." . . . . . . . "Microbial pathogens and human diseases" . . . . . . . . . . . . "Viruses pathogenicity." . . "Fungi pathogenicity." . . . . "Bacteria pathogenicity." . . "Microorganismes pathogènes." . . "Eukaryota pathogenicity." . . "Communicable Diseases etiology." . .