Facultative Anaerobe - ability to grow in aerobic and anaerobic

Opportunistic infection: caused by bacteria which are usually harmless but cause disease under certain conditions

Sterilization - destroys all forms of microbial life Disinfection - eliminates many pathogenic microorganisms EXCEPT BACTERIAL SPORES (dormant structures produced by bacteria which are heat resistant) Decontamination - removes pathogens from objects so they are safe to use

Bactericidal - kills bacteria Bacteriostatic - inhibits bacteria from growing

Antiseptics - used on living tissue Disinfectant - used of non living

Good microbial agent = antibacterial but not cytotoxic to host cell

Gram+ Gram- Bacteria

Viruses - neil blake lecture

small infectious obligate intracellular parasite Virus particle - virion

Taxonomy - classification of viruses. Group based on mode of transmission or structures.

HIV - diploid genome Adenovirus - no envelope

Virulence - capacity of virus to cause disease.

Viranaemia - presence of virus in blood