Microbiology‎ > ‎

GastroIntestinal System




Print Format

Return to Microgiology Home  
 




T Microbe V D Ds S AR IP Toxin / Mechanism Sources / Transmission
+ Staphylococcus Aureus *



1 Super-Ag creamy foods
Bacillus cereus * *


1;2 Cerulide (HS), Entero- (HL) reheated rice, meat stew
V Adenovirus * *

C 4 mucosal infection
Rotavirus * *

I 4 mucosal infection cold foods, raw shellfish
Astrovirus * *

C,E 4 mucosal infection
Norwalk (Noro) Virus * *

C,A 3 mucosal infection raw shellfish
P Giardia Lamblia * *

O
malabsorption water (beavers)
Entameoba Histolytica * * * U,Bs

proteinases, amoebapore Animals & vectors
Cryptosporidium parvum * *




farms
Cyclospora cayatensis * *




fruit/veg
Isospora belli * *




fruit/veg
Vibreo parahemolyticus * *


3

Vibreo cholera
*


4 Cholera toxin cont. water
Vibreo vulnificus
*




raw oysters
Entero-Toxigenic E. Coli
*


4 Cholera & HS toxins
Entero-Aggregative E. coli
*

I
AAF, EAST toxin
Entero-Pathogenic E. coli
*

I,C
Tir, intimin, Bfp weaning foods
+ Listeria monocytogenes
*


3 Internalin, ActA, Listerolysin Food & animals
Clostridium botulinum
*
Pr
3 A-B toxin Canned food / honey
Clostridium perfringens
*


2 HL toxin meat, poultry, fish
Clostridium difficille
* *


A & B toxin normal flora
Campylobacter jejuni
* * G,A
4 Shiga-like toxin, invasion meat, milk, animals
Yersinia spp.
* * R

invasion of peyers patches meat, milk
Salmonella spp. (non typhoidal)
* * R
3 cytotoxin, enterotoxin poultry, dairy
Salmonella spp. (typhoidal)
* * *

invasion, lymphoid inflam. enteric fever
Shigella spp.
* * R,H
4 Shiga toxin Flies, food
Entero-Hemorrhagic E. coli (O157:H7)
* * H
4 Shiga-like toxin undercooked beef
Entero-Invasive E. coli
* *


local invasion, no tox. cheeze
Acd Mycobacterium tuberculosis
* * *

invasion, focal necrosis Milk, coughed up organisms



Legend

T = Type
      + = Gram +
      – = Gram –
     V = virus
      P = parasite
Vmt = vomiting
Drh = diarrhea
Dsn = dysentery
   (blood and/or pus in stool)
S = Sequelae
      R = reiters
      H = hemolytic uremic syndrome
      G = Guillean-Bar
      Pr = Paralysis
      A = reactive arthritis
      U = ulcers
      Bs = Abscesses
At Risk:
      I = infants
      C = children
      O = outdoors people      (campers, etc.)
      A = adults
      E = Elderly

IP = incubation period
      1 = few hours (<6)
      2 = several hours (>6)
      3 = several hours to few days
      4 = few days
Toxin / Mechanism
      HL = heat labile
      HS = heat stable
      C = cholera (like)
      S = shiga (like)


By Kashyap Patel




Comments