Microbiology Test 2
Card Set Information
Microbiology Test 2
microbiology celeste matthews
Microbiology study guide
What is a prion?
An infectious protein particle.
It is smaller than a virus.
What are two diseases caused by prions?
1. Mad cow disease
What is a disease caused by a rickettsia?
Rocky Mountain Spotted Fever
Do antibiotics such as penicillin kill viruses?
Name a disease caused by a fungus
Name a disease caused by a protist
Name a disease caused by an animal
amoebic dysentery (diarrhea)
Plasmodium - malaria
infection of red blood cells
African sleeping sickness
chagas disease; fever, systemic infection, death
Why does the US have less problems with
parasitism than developing nations do?
Sanitation, flushing toilets, healthcare
infective particle, contains DNA or RNA
Covered with a capsid.
May or may not have an envelope
virus that infects a bacteria
Bacteriphages can make bacteria be more virulent
Why can viruses not be grown in ordinary
growth media such as nutrient agar?
They must grow in a living cell
caused by Staphyococcus areus or Streptococcus pyogenes
caused by Staphyococcus areus or Streptococcus pyogenes or other infectious agents
Staphylococcal Scalded Skin Syndrome
Caused by Staphylococcus aureus
Toxic epidermal necrolysis
caused by a drug reaction
Why does one Strep or Staph cause a
mild case of impetigo and another organism of the same species can cause necrotizing
fascilitis or “flesh eating disease”
Bacteriophages encode for extreme virulence.
Patient resistance to bacteria varies.
Why is an open or compound fracture
considered to be an immediate emergency?
It can become infected and get gangrene.
gas gangrene (also a cause of food poisoning)
Leprosy (Hansen’s Disease)
What common non-human organism can
Is leprosy contagious?
Yes, but it requires close contact and a susceptible host
caused by Human Herpes 3, varicella, a herpes virus, DNA
How do people get shingles?
The herpes that causes shingles becomes dormant, but continues to live in the nerves of infected people. Stress causes the virus to become active.
Should children with chicken pox or other febrile disease be given aspirin for fever? Why or why not?
No, aspirin in febrile children is associated with Reye’s Syndrome which can cause encephalopathy and death.
caused by the variola virus, an Orthopox virus
Prevention of smallpox
vaccine developed by Edward Jenner, from cowpox virus.
Paramyxovirus, can cause death
Rubivirus; causes severe birth defects in children infected in utero
human herpes virus 6
caused by a protozoan, skin ulcers
caused by a fungus
conjunctivitis, may be viral, bacterial, or even protozoal, or animal
Common causes – Staphylococcus, Streptoccus, gonorrhea, Chlamydia, contact lenses
deep infection of eye, causes corneal ulcers
caused by a helminth, Onchocerca volvus, spread by black flies.