GI Microbial Diseases Flashcards

Flashcards covering key vocabulary terms and concepts from the GI Microbial Diseases lecture.

Vehicle Transmission

Transmission through a medium, such as food or water, carrying the pathogen.

Staphylococcus Aureus

Causative agent of Staphylococcal Food Poisoning; Gram-positive cocci.

Staphylococcal Food Poisoning Symptoms

Quick onset vomiting, diarrhea, no fever, resolves within 24-48 hours.

Shigella spp.

Causative agent of Bacillary Dysentery; Gram-negative rods.

Bacillary Dysentery Transmission

Direct contact (person to person), indirect (fomites), vehicle (water); fecal-oral route.

Bacillary Dysentery Symptoms

Fever, cramps, bloody diarrhea (up to 20 times a day).

Salmonella Enterica

Causative agent of Salmonellosis; Gram-negative rods.

Salmonellosis Transmission

Vehicle via fecal-oral route.

Salmonellosis Symptoms

Moderate fevers, bloody diarrhea, cramping, nausea, sometimes vomiting.

Salmonella Typhi

Causative agent of Typhoid Fever; Gram-negative rods.

Typhoid Fever Transmission

Vehicle via fecal-oral.

Typhoid Fever Symptoms

High fever, bloody diarrhea, nausea, vomiting.

Vibrio Cholerae

Causative agent of Cholera; Gram-negative curved rods.

Cholera Transmission

Vehicle through water.

Cholera Symptoms

No fever, no bloody diarrhea, rice water stool.

E. Coli Transmission

Vehicle via fecal/oral.

E. Coli Symptoms

Watery diarrhea, vomiting, nausea.

E. Coli 0157:H7

Causative agent of Entero-Hemorrhagic E. coli; Gram-negative rods.

Entero-Hemorrhagic E. coli Symptoms

Bloody diarrhea, cramps, renal failure in kids, anemia.

Campylobacter Jejuni

Causative agent of Campylobacter Gastroenteritis; Gram-negative spiral/curved rod.

Campylobacter Gastroenteritis Transmission

Vehicle through food (chicken) and water.

Campylobacter Gastroenteritis Symptoms

Bloody diarrhea, nausea, vomiting, abdominal pain.

Helicobacter Pylori

Causative agent of Ulcers; Gram-negative spiral rod.

Ulcers Transmission

Direct contact (fecal-oral/oral-oral), indirect (fomites).

Ulcers Symptoms

No diarrhea, burning stomach, burping, bloating, black stool, ulcers.

Clostridium Difficile

Causative agent of C. Diff Associated Diarrhea; Gram-positive rods.

C. Diff Associated Diarrhea Transmission

Indirect via fecal/oral.

C. Diff Associated Diarrhea Symptoms

Watery diarrhea, fever.

Listeria Monocytogenes

Causative agent of Listeriosis; Gram-positive rods.

Listeriosis Transmission

Vehicle via soil, water, and food.

Listeriosis Symptoms

Watery diarrhea, mild flu-like symptoms, meningitis.

Giardia Lamblia

Causative agent of Giardiasis; trophozoite or cyst.

Giardiasis Transmission

Vehicle via fecal/oral, specifically contaminated tap water.

Giardiasis Symptoms

Watery diarrhea, flatulence, greasy floating stool, no fever.

Cryptosporidium spp.

Causative agent of Cryptosporidosis; protozoa.

Cryptosporidosis Transmission

Direct contact (daycare/animal handling), vehicle via fecal/oral through contaminated recreational water.

Cryptosporidosis Symptoms

Watery diarrhea (2-3 weeks), nausea, bloating, low fever, fatigue, loss of appetite.

Cyclospora spp.

Causative agent of Cyclospora Diarrhea; protozoa.

Cyclospora Diarrhea Transmission

Vehicle via fecal/oral.

Cyclospora Diarrhea Symptoms

Watery diarrhea, no smelly farts, fatigue, bloating, mild fever.

Entamoeba Histolytica

Causative agent of Amoebic Dysentery; protozoa.

Amoebic Dysentery Transmission

Direct contact (person to person), indirect (fomites), vehicle via fecal/oral (water/food).

Amoebic Dysentery Symptoms

Lots of bloody diarrhea (1-8 per day), bad odor, abscess in liver, dark red diarrhea, mucus in poop, fever.

Rotavirus + Norovirus

Causative agents of Viral Gastroenteritis; virus.

Viral Gastroenteritis Transmission

Direct contact, indirect (fomites), droplet (aerosol), vehicle via food/water.

Viral Gastroenteritis Symptoms

Watery diarrhea, nausea, low fever, vomiting.

Mumps Virus

Causative agent of Mumps; virus.

Mumps Transmission

Direct contact, indirect (fomites), droplet (aerosol).

Mumps Symptoms

Swollen parotid glands, swollen neck, no diarrhea, fatigue, headache.

Hep A+E Transmission

Fecal/oral via vehicle (food/water).

Hep B/C/D Transmission

Parenteral (needle), sex, vertical (mom to baby).

Hepatitis Symptoms

No diarrhea, jaundice, dark urine, fever, nausea, liver pain from jaundice

Transmission through a medium, such as food or water, carrying the pathogen.

Vehicle Transmission

Staphylococcus Aureus

Causative agent of Staphylococcal Food Poisoning; Gram-positive cocci.

Staphylococcal Food Poisoning Symptoms

Quick onset vomiting, diarrhea, no fever, resolves within 24-48 hours.

Shigella spp.

Causative agent of Bacillary Dysentery; Gram-negative rods.

Bacillary Dysentery Transmission

Direct contact (person to person), indirect (fomites), vehicle (water); fecal-oral route.

Bacillary Dysentery Symptoms

Fever, cramps, bloody diarrhea (up to 20 times a day).

Salmonella Enterica

Causative agent of Salmonellosis; Gram-negative rods.

Salmonellosis Transmission

Vehicle via fecal-oral route.

Salmonellosis Symptoms

Moderate fevers, bloody diarrhea, cramping, nausea, sometimes vomiting.

Salmonella Typhi

Causative agent of Typhoid Fever; Gram-negative rods.

Typhoid Fever Transmission

Vehicle via fecal-oral.

Typhoid Fever Symptoms

High fever, bloody diarrhea, nausea, vomiting.

Vibrio Cholerae

Causative agent of Cholera; Gram-negative curved rods.

Cholera Transmission

Vehicle through water.

Cholera Symptoms

No fever, no bloody diarrhea, rice water stool.

E. Coli Transmission

Vehicle via fecal/oral.

E. Coli Symptoms

Watery diarrhea, vomiting, nausea.

E. Coli 0157:H7

Causative agent of Entero-Hemorrhagic E. coli; Gram-negative rods.

Entero-Hemorrhagic E. coli Symptoms

Bloody diarrhea, cramps, renal failure in kids, anemia.

Campylobacter Jejuni

Causative agent of Campylobacter Gastroenteritis; Gram-negative spiral/curved rod.

Campylobacter Gastroenteritis Transmission

Vehicle through food (chicken) and water.

Campylobacter Gastroenteritis Symptoms

Bloody diarrhea, nausea, vomiting, abdominal pain.

Helicobacter Pylori

Causative agent of Ulcers; Gram-negative spiral rod.

Ulcers Transmission

Direct contact (fecal-oral/oral-oral), indirect (fomites).

Ulcers Symptoms

No diarrhea, burning stomach, burping, bloating, black stool, ulcers.

Clostridium Difficile

Causative agent of C. Diff Associated Diarrhea; Gram-positive rods.

C. Diff Associated Diarrhea Transmission

Indirect via fecal/oral.

C. Diff Associated Diarrhea Symptoms

Watery diarrhea, fever.

Listeria Monocytogenes

Causative agent of Listeriosis; Gram-positive rods.

Listeriosis Transmission

Vehicle via soil, water, and food.

Listeriosis Symptoms

Watery diarrhea, mild flu-like symptoms, meningitis.

Giardia Lamblia

Causative agent of Giardiasis; trophozoite or cyst.

Giardiasis Transmission

Vehicle via fecal/oral, specifically contaminated tap water.

Giardiasis Symptoms

Watery diarrhea, flatulence, greasy floating stool, no fever.

Cryptosporidium spp.

Causative agent of Cryptosporidosis; protozoa.

Cryptosporidosis Transmission

Direct contact (daycare/animal handling), vehicle via fecal/oral through contaminated recreational water.

Cryptosporidosis Symptoms

Watery diarrhea (2-3 weeks), nausea, bloating, low fever, fatigue, loss of appetite.

Cyclospora spp.

Causative agent of Cyclospora Diarrhea; protozoa.

Cyclospora Diarrhea Transmission

Vehicle via fecal/oral.

Cyclospora Diarrhea Symptoms

Watery diarrhea, no smelly farts, fatigue, bloating, mild fever.

Entamoeba Histolytica

Causative agent of Amoebic Dysentery; protozoa.

Amoebic Dysentery Transmission

Direct contact (person to person), indirect (fomites), vehicle via fecal/oral (water/food).

Amoebic Dysentery Symptoms

Lots of bloody diarrhea (1-8 per day), bad odor, abscess in liver, dark red diarrhea, mucus in poop, fever.

Rotavirus + Norovirus

Causative agents of Viral Gastroenteritis; virus.

Viral Gastroenteritis Transmission

Direct contact, indirect (fomites), droplet (aerosol), vehicle via food/water.

Viral Gastroenteritis Symptoms

Watery diarrhea, nausea, low fever, vomiting.

Mumps Virus

Causative agent of Mumps; virus.

Mumps Transmission

Direct contact, indirect (fomites), droplet (aerosol).