MEDRADSC 2A03 Lecture Notes - Lecture 6: Infection Control, Spiral Bacteria, Streptococcus Pneumoniae

• School: McMaster University
• Department: Medical Radiation Sciences
• Course: MEDRADSC 2A03
• Professor: Tara Blaszynski

Document Summary

Unicellular (one celled organism) containing dna & rna. Cocci: round bacteria; ie staphylococci; streptococci, pneumococci. Spirilla: spiral; ie spirilla: divisional grouping, fungi. Require oxygen, warmth, humid environments (tropics: viruses. Genetic material is either dna or rna, never both. Genetic material protected by outer protein coat. Must invade a host cell to survive & reproduce. Attach to a cell -> inject themselves into cell -> take over cell & replicate -> new viruses leave host cell (may destroy host cell on leaving: parasites. Organism that exists on or in another organism. Large number of parasites that can produce disease roughly classified. Protozoa are complex one celled microorganisms & move by action of cilia. Helminths are parasitic worms that can live in the human gi tract. Healthcare workers potential for acquiring & transmitting. Vaccine prevents in 70% of healthy children & adults. Applies to all in hospital except visitors.