Definitions in Infectious Diseases


  • Bacteria = single celled prokaryotic organism.
  • Eukaryote = organism that possess a cell nucleus and other organelles.
  • Fungi = eukaryotic organisms that absorb their food from other living or dead organisms.
  • Parasite = an organism that grows, feeds, and is sheltered on or in a different organism while contributing nothing to the survival of its host organism.
  • Prokaryote = organisms that lack a cell nucleus (= karyon), or any other membrane-bound organelles.
  • Protozoa = A single-cell organism that can only divide within a host organism.
  • Rickettsiae = non-motile, Gram-negative, non-spore forming, highly pleomorphic bacteria (it is an obligate intracellular parasite as it reproduction depends on being inside a eukaryotic cell).
  • Spirochaetes = spiral-shaped gram negative bacteria
  • Virus = ultramicroscopic, metabolically inert infectious agent that replicates within the cells of living hosts – composed of RNA or DNA core, protein coat +/- surrounding envelope.

CCC 700 6

Critical Care


Chris is an Intensivist and ECMO specialist at the Alfred ICU in Melbourne. He is also a Clinical Adjunct Associate Professor at Monash University. He is a co-founder of the Australia and New Zealand Clinician Educator Network (ANZCEN) and is the Lead for the ANZCEN Clinician Educator Incubator programme. He is on the Board of Directors for the Intensive Care Foundation and is a First Part Examiner for the College of Intensive Care Medicine. He is an internationally recognised Clinician Educator with a passion for helping clinicians learn and for improving the clinical performance of individuals and collectives.

After finishing his medical degree at the University of Auckland, he continued post-graduate training in New Zealand as well as Australia’s Northern Territory, Perth and Melbourne. He has completed fellowship training in both intensive care medicine and emergency medicine, as well as post-graduate training in biochemistry, clinical toxicology, clinical epidemiology, and health professional education.

He is actively involved in in using translational simulation to improve patient care and the design of processes and systems at Alfred Health. He coordinates the Alfred ICU’s education and simulation programmes and runs the unit’s education website, INTENSIVE.  He created the ‘Critically Ill Airway’ course and teaches on numerous courses around the world. He is one of the founders of the FOAM movement (Free Open-Access Medical education) and is co-creator of litfl.com, the RAGE podcast, the Resuscitology course, and the SMACC conference.

His one great achievement is being the father of three amazing children.

On Twitter, he is @precordialthump.

| INTENSIVE | RAGE | Resuscitology | SMACC

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