Part 1: Microbiology (Viral, Bacterial & Fungal Infections) Flashcards
A single stranded RNA virus is called a
Viroid
Virus either contain ____ or ____, not both
DNA or RNA
Arboviruses/Arthropod borne viruses are transmitted by
Mosquitoes
Polion is transmitted by
oral/fecal
warts are transmitted by
skin contact
Hep A is transmitted by
oral/fecal
Hep B is transmitted by
sex, IV drugs
Hep C is transmitted by
transfusions, tattooing
Herpes Simplex Type 1 characteristics
- cold sores (above the belt)
- can be in Trigeminal “Gasserion” ganglion ***
Herpes Simplex Type 2 characteristics
below the belt
Characteristic of Molluscum Contagiosum:
pink cauliflower lesion on female genitalia
AKA for warts
Papovavirus (Papillomavirus)
AKA for Rubella
German Measles
3 day measles
Characteristics of Rubeola
- Koplik Spots in mouth
- 3 C’s: Cough, Coryza (runny nose), Conjunctivitis
AKA for Vaccinia
Cow Pox
AKA for Variola
Small Pox
Characteristics of Coxsackie virus
- childhood dysentery
- Hand, foot & mouth disease
Characteristics of Echovirus
- skin rash
- heart disease
Characteristics of Polio
- affects anterior horn
- bulbar type -> respiratory paralysis (major cause of death)
Bulbar =
brainstem
Adenovirus causes:
conjuctivitis & pharyngitis
Influenza has ________ ________ and/or _______.
Antigenic shift and/or drift
A small mutation of Influenza is called ___________
Drift
A big mutation of Influenza is called ___________
Shift
What virus causes Mumps?
Sidomegalic paramyxoid virus
Mumps can lead to:
- Parotiditis
- LMNL of CN7 (bells palsy)
- Sterility from oophritis or orchitis
RSV can cause
Croup & Bronchiolitis
Definition of Capsid
Covering of genetic material
What can cause disseminated disease in AIDS patients?
Cytomegalovirus
Characteristics of rabies
- negri bodies in brain
- hydrophobia
- bullet shaped under microscope
MC cause of Reyes Syndrome
Influenza
What disease has a negative reaction to aspirin?
Reyes Syndrome
Reyes Syndrome can cause
Fatty liver & encephalopathy
What occurs to RNA in AIDS?
Reverse transcriptase (RNA -> DNA)
What cells are affected in AIDS and what cell destroys them?
CD4 cells; T-Helper cells destroy them
1 fungal infection in AIDS pt’s:
Pneumocystis Carinii
1 cause of death in AIDS pt’s
Pneumocystis Carinii fungal infection
1 parasitic/protozoal infection in AIDS pt’s
Toxoplasmosis
Toxoplasmosis is spread by
cat feces
1 death by cancer in AIDS pt’s:
Kaposi Sarcoma
The complication of Giardia Lamblia in AIDS pt’s causes
mucousy diarrhea
What disease only replicates in the presence of Hep B?
Hep D
What types of hepatitis are you a carrier for life?
B, C & D
Side effect (Sequelae) of Hep A
None
Side effect (Sequelae) of Hep B, C & D
Liver Cancer
Does Hep A, B, C & D have RNA or DNA?
Hep B is the only that has DNA all others have RNA
What form of Hepatitid has the best & worst diagnosis?
Best: A
Worst: C
What are the 5 major Arboviruses?
1) Eastern Equine Encephalitis
2) Western Equine Encephalitis
3) St. Loius Encephalitis
4) Yellow fever
5) Dengue Fever
What bacteria is present in the bubonic plague
Yersinia Pestis aka Pasteurella pestis
The term Bubos in the bubonic plague means:
neck & axillary lymph node enlargement
Death by asphyxition is a characteristic of…
Bubonic plague
Tuleremia is caused by what bacteria?
Francisella Tularensis
Tuleremia’s vector is
rabbits, maybe squirrels
What organism is present in Botulism?
Clostridium Botulinum
What organism is present in Campylobacter?
C. Jejuni
What organism is present in Listeria?
Listeria Monocytogenes
What organism is present in Salmonella?
Salmonella entrides
What organism is present in Staphylococcus?
Staph Aureus
What organism is present in Typhoid?
Salmonella Typhi
What foods cause Botulism?
GRAVIES & Meats
Home Canning
What foods cause Listeria
Deli meats & soft cheeses
What foods cause salmonella?
Eggs & Poultry
What foods cause Staphylococcus?
Creams & custardds
What foods cause Typhoid?
fecal contaminated food
What food poisoning mimics myasthenia gravis?
Botulism
Botulism prevents ____ release
AcH (floppy baby syndrome)
1st & 2nd symptoms of botulism:
1st: diplopia
2nd: death
What is the #1 cause of food poisoning & diarhhea?
Campylobacter (C. Jejeni)
Signs & Symptoms of Campylobacter
Abdominal pain & blood/pus in stool
Fever
Signs & Symptoms of Typhoid
Rose colored spots on abdomen
peyer’s patches on ileum
What test is used for Typhoid fever?
Widal test
What organism causes Cholera?
Vibrio Cholera
What organism causes Shigella
Shigella
What organism causes Travelers diarrhea
E. Coli
Contaminated water can cause (2)
Cholera & E. COli
Shigella is transmitted from
contaminated soil & water
Rice water stool are characteristic of
cholera
blood in the stool can be a sign of this water borne disease:
blood in stool aka: Bacillary/bacterial dysentery
Shigella
The Enterohemorrhagic form of E. Coli is ______ and can cause:
E. Coli OH157; Hamburger’s disease/Death
Food borne diseases (6)
1) Botulism
2) Campylobacter
3) Listeria
4) Salmonella
5) Staphylococcus
6) Typhoid
Water borne diseases (4)
1) Brucellosis
2) Cholera
3) Shigella
4) Traveler’s Diarrhea
Soil Borne diseases (4)
1) Anthrax
2) Tetanus
3) Shigella
4) Gas Gangrene
What organism causes Anthrax?
Bacillus Anthracis
What organism causes Tetanus?
Clostridium Tetani
What organism causes Gas Gangrene?
Clostridium Perfingins
AKA for Anthrax disease
Woolsorter’s disease
What causes Anthrax disease?
Inhaled spores from animal hides or woll making it zoonotic
What causes Lock jaw in Tetanus?
Inhibits GABA & Glycine
1 & #2 causes of Otitis Media:
1: Haemophilus Influenza
#2: Strep Pneumoniae
1 & #2 causes of Otitis Externa aka swimmers ear
1: E. Coli
#2: Pseudomonas Aeruginosa
Spirochete Diseases (2)
1) Lyme’s disease
2) Syphilis
What organism causes Lyme’s disease?
Borrelia Burgdorferi
Charcteristic of Lyme’s disease
Erythema Chronicum Migricans
(Bulls eye rash)
What organism causes Syphilis?
Treponema Pallidum
Characteristics of the following stage of Syphilis: Primary
hard painless chancre
Characteristics of the following stage of Syphilis: Secondary
- Condylomata lata (flat warts on vulva)
- maculopapular rash
Characteristics of the following stage of Syphilis: Latency
may or may not have symptoms
Characteristics of the following stage of Syphilis: Tertiary
- Neurosyphilis
- gummas
- argyll robertson pupil
- tabes dorsalis
How do bacteria replicate?
binary fission-asexual reproduction
What is the enzyme that acts on the bacteria B hemolytic strep?
Streptokinase
The enzyme Coagulase acts on
Bacterial Staph
The enzyme Hemolysin acts on
Bacterial Staph
The enzyme Leukocidin acts on
bacterial staph or strep
the enzyme Hyaluronidase acts on
bacterial Staph, Strep or Clostridia
Function of the enzyme streptokinase
dissolves clots to organisms can spread faster
Function of the enzyme Coagulase
Fibrin -> Fibrinogen (makes it thicker)
Function of the enzyme Leukocidin
Exotoxin that kills WBCs & phagocytes
Function of the enzyme Hyaluronidase
Breaks down tissue “cement” of hyaluronic acid
Mesophilics are killed by
fever
MC causes of meningitis in newborns
1st: E. COli
2nd:Listeria
What organism causes meningitis in adults?
Strep pneumoniae
List of protozoal infections (6)
1) Amebiasis
2) Giardiasis “beaver fever”
3) Kala-Azar “Leichmaniasis”
4) Malaria
5) Toxoplasmosis
6) Trypanosomiasis
What organism causes Amebiasis
Entamoeba Histolytica
What organism causes Giardiasis “beaver fever”?
Giardia Lamblia
What organism causes Kala-Azar
Leishmania Donovani
What organism causes Malaria
Plasmodium Vivax (MC) & Plasmodium Falciparum (Most fatal)
What organism causes Toxoplasmosis?
Toxopanosoma Gondii
What organism causes Trypanosomiasis
Trypanosoma Cruzi (Chaga’s disease) & Trypanosoma Gambiense (African sleeping sickness)
Kala-Azar is transmitted from
sand flies
Trypanosomiasis is transmitted from:
Kissing bug or Tsetse fly
Amebiasis is transmitted from
contaminated food or water
What is the infective form of Amebiasis?
Cyst
What is the infective form of Giardiasis?
Cyst
Amebiasis causes what symptoms?
dysentery, mild diarrhea
Giardiasis causes what symptoms?
Flatulance, poor absorption & Mucousy diarrhea
What protects against Malaria?
Sickle cell allele
What is the infective stage vs. the merozoite stage of Malaria?
Infective: Sporozoite (gets into blood)
Merozoite: where it propagates through the blood
When does Malaria become pathogenic?
in the Merozoite stage -> hemolytic anemia & Chronic splenomegaly
What is the most fatal form of Malaria?
Plasmodium Falciparum
What type of mosquito is responsible for carrying Malaria?
Anopheles mosquitoe
List of fungal infections (6)
1) Aspergillosis
2) Blastomycosis
3) Coccidiomycosis
4) Histoplasmosis
5) AIDS Pneumonia
6) Sporotrichosis
What organism causes Aspergillosis?
Aspergillus Fumigatus
What organism causes Blastomycosis?
Endemic fungus
What organism causes Coccidiomycosis?
endemic fungus
What organism causes histoplasmosis
endemic fungus
What organism causes AIDS pneumonia?
Pneumocystis Carinii
What organism causes Sporotrichosis?
Sporotherix schenckii
What disease is transmitted by nuts & grains?
Aspergillosis
What disease is transmitted by Eastern seaboard?
Blastomycosis
What disease is transmitted by the Deserrts of the Southwest?
Coccidiomycosis
What disease is transmitted by Michigan and Ohio Valleys?
Histoplasmosis
What disease is transmitted by Pigeon droppings?
AIDS Pneumonia
What disease is transmitted by Rosebush thorns, flowers?
Sporotrichosis
What disease is aka San Joaquin Valley Fever?
Coccidiomycosis
What does Histoplasmosis do to the body?
creates calcific lesions in the lungs
Who is at risk for Sporotrichosis?
Gardeners
What does Aspergillous do to the body?
creates fungus ball in lungs
can cause liver cancer
Tinea Barbae means
ringworm of beard
Tinea capitis means
ringworm of scalp
tinea corporis means
ringworm of body
tinea cruris means
ringworm of groin “jock itch”
tinea pedis means
ringworms of foot
inea unguinum means
ringworm of nail
tinea versicolor means
color change of surface of the skin
What organism causes Rocky Mountain Spotted Fever?
Rickettsia Rickettsii
Rocky mountain spotted fever is transmitted by
wood tick
Signs & symptoms of rocky moutain spotted fever:
rash on wrists & ankles
Q fever is caused by what organism?
Coxiella Burnetii
Coxiella Burnetii is ________ for Weil-Felix.
Negative
Coxiella burnetii (Q-Fever) is transmitted by
Milk