Ch 24 Flashcards
Dental caries
Tooth decay.
Caused by streptococcus mutants. Live only in teeth.
Gingivitis
Bleeding gums.
Caused by treponema
Avoid buildup of plague
Oral herpes
Cold sores. Most oral infections caused by hsv 1.
Mumps
Fever, headache, loss of appetite, painful swelling of one or both parotid glands. Humans are only source of virus
Cholera
Potentially fatal diarrhea. Lead to dehydration and shockS
Caused by vibrio cholerae. A-b toxin.
Fecally contaminated water.
Shigellosis
Fever, dysentery, Vomiting, stiff neck, joint pain
Caused by enterobacteriacea shigella
Fecal oral transmission
E. coli
Strains
Shiga toxin producing- colonized large intestine
Enterotoxigenic- small intestine
Enteroinvasive- intestinal epithelium
Enteropathogenic- small intestine. Lesions
Enteroaggregative- intestinal epithelium. Grow brick like
Typhoid fever
Systemic disease. Fever, constipation, pain, internal bleeding, shock.
Caused by salmonella
Person to person fecal oral transmission.
Hep a
Caused- non enveloped rna.
Transmission- fecal oral
Mild symptoms.
Hep b
Enveloped. Double stranded DNA
Transmission- blood and semen
Acute symptoms. Chronic disease can lead to cirrhosis or cancer.
Hep c
Enveloped. Single strand rna
Transmission- blood and semen
Progressive liver damage.
Hep d
Defective single stranded rna
Blood and seamen
Prior or concurrent hbv infection necessary. Can make hep b worse
Hep e
Non eneveloped, single stranded Rna
Fecal- oral
Similar to hep a. Severe for pregnant women.
