Oral and GI tract Infections

Necrotizing Ulcerative Gingivitis (Trench coat)

Mixed infection of anaerobic bacteria

Painful bleeding of gingivae, fever, swollen lymph nodes, extreme halitosis

Chronic Bacterial Gastritis

Helicobacter Pylory

Chronic inflammation of gastric mucosa (early satiety pain, nausea)

Ulcer formation (stomach and duodenum)

Causing epigastric pain/pyrosis when stomach empty

Fecal-oral

con food/water

kissing

(humans)

Typhoid Fever

Salmonella Typhi

Salmonella Paratyphi

fever, malaise, severe headache, DRY cough, loss of appetite,

RED MACULAR RASH- ROSE SPOTS

(humans pt or carriers)

Fecal-oral, cont food/water

HOUSEFLIES FACILITATE

Campylobacter Enteritis

Campylobacter Jejuni

Inflammation of small intestine

nausea, vomit, diarrhea

self limited (2-5 days)

(poultry, cattle, pigs)

ingestion of infected chicken, beef, pork, or foor from contaminated cutting boards

Cholera

Vibrio Cholerae

profuse watery diarrhea (CHOLERAGEN toxin) vomit, rapid dehydration

Severe cholera (CHOLERA GRAVIS) copious liquid stools with mucus flecks- RICE WATER STOOLS

Fecal-oral, con food/water. HOUSEFLIES FACILITATE

(humans/ SHELLFISH)

Salmonellosis

Salmonella Enterica

Salmonella Bongori

Abdominal pain, nausea, vomit, diarrhea (SALMONELLA TOXIN)

fecal-oral, ingest infected chicken, beef, pork, or UNCOOKED EGGS

(humans pt/carriers, poultry, cattle, pigs)

Shigellosis

Shigella Sonnei

Shigella Flexneri

Shigella Boydii

Shigella Dysenteriae

abdominal pain, nausea, vomit, DYSENTERY (SHIGA TOXIN), seizures in children

(humans pt/carriers)

Fecal-oral routes, cont food/water. ORAL-ANAL SEX

Clostridioides difficile colitis

Clostridiodes Difficile

Inflammation of colon, following antibiotic disruption resulting in diarrhea (release of toxins)

Fecal-oral

Spores persist on surface, transfer by personnel

(humans)

EHEC enterocolitis STEC

EnteroHEMORRHAGIC E.coli

0157: H7 strain

Produces shiga toxin

nausea, vomiting, abdominal cramps, dysentery

fecal-oral

ingestion of infected beef, cont fruits/veg

Hemolytic Uremis Syndrome

SHIGA TOXIN PRODUCING E.COLI

(humans/cattle)

LEADING CAUSE FOR DIARRHEAL OUTBREAK

ETEC enterocolitis

EnteroTOXIGENIC E.coli

LT strain- heat labile toxin

ST strain-heat stable toxin

nause, vomit, diarrhea, abd cramps,

Fecal-oral route

Cont beef, fruit, veg, fluids

leading cause of TRAVELERS DIARRHEA

(human/cattle)

Hemolytic Uremis Syndrome (HUS)

Destruction of RBC/Platelets by shiga toxin

Acute kidney failure

Glomeruli clogged

Leading cause of diarrheal outbreak in US

Helicobacter Pylori

Gram - bacilli

Salmonella typhi (paratyphi)

Gram - bacilli

Campylobacter jejuni

Gram - bacilli

Vibrio Cholerae

Gram - bacilli

Comma-shaped

Salmonella enterica/ bongori

Gram - bacilli

Shigella sonnei/flexneri, ect

Gram - bacilli

C. diff

Anaerobes Bacteroides

enterohemorrhagic E.coli

Gram - bacilli

enterotoxigenic e.coli

Gram - bacilli