Topics: Microbiology, Microscopy, Morphology of Bacteria, Physiology of Bacteria, Sterilization, Disinfection, culture media, Culture Methods, bacterial culture, bacterial taxonomy, infection, immunity, immunology, antigens, antibodies, immunoglobulins, complement system, Antigen-Antibody Reactions, Immune Response, immune system, Immunodeficiency Diseases, Hypersensitivity Reactions, autoimmunity, Immunohematology, Systemic Bacteriology, Staphylococcus, Streptococcus, Enterococcus, Pneumococcus, Diplococcus pneumoniae, Neisseria, Moraxella, Corynebacterium, bacillus, Clostridium, Nonsporing Anaerobes, Mycobacterium tuberculosis, Mycobacterium leprae, Nontuberculous Mycobacteria, Actinomycetes, Nocardia, Enterobacteriaceae, Escherichia, Klebsiella, Proteus, shigella, Tribe Proteae, salomonella, Vibrio, Aeromonas, Pleisomonas, Campylobacter, Helicobacter, Pseudomonas, Stenotrophomonas, Burkholderia, Legionella, Yersinia, Pasteurella, Francisella, Haemophilus, Bordetella, brucella, Spirochetes, Mycoplasma, Ureaplasma, Miscellaneous Bacteria, Rickettsiaceae, Bartonellaceae, Coxiella, Virology, Virus-Host Interactions, Viral Infections, Laboratory Diagnosis, Prophylaxis, Chemotherapy of Viral Diseases, Bacteriophages, Poxviruses, Herpesviruses, Adenoviruses, Papovaviruses, parvovirus, picornaviruses, Orthomyxovirus, Paramyxoviruses, Arboviruses, Rhabdoviruses, Hepatitis Viruses, RetrovirusesHuman Immunodeficiency Virus, Slow Virus, Prion Diseases, Oncogenic Viruses, Medical Mycology, Systemic Mycoses, Opportunistic Mycoses, Mycotoxicosis, Infective Syndrome.Hospital-Acquired Infection, Antimicrobial Therapy, Antibiotic Sensitivity Tests, Antimicrobial Chemotherapy, Immunoprophylaxis, Hospital Waste Management, Molecular Detection of Microorganisms, Diagnostic Medical Microbiology