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Ch. 19 - Pathogenic Gram-Positive Bacteria
Bauman - Microbiology with Diseases by Taxonomy 6th Edition
Bauman6th EditionMicrobiology with Diseases by TaxonomyISBN: 9780134832302당신이 사용하는 게 아니라요?교과서 변경
모든 교과서Bauman 6th EditionCh. 19 - Pathogenic Gram-Positive Bacteria문제 1
19장, 문제 1

Which of the following bacteria causes a common type of food poisoning?
a. Streptococcus sanguis
b. Clostridium tetani
c. Staphylococcus aureus
d. Streptococcus pyogenes

검증된 단계별 안내
1
Step 1: Understand the question is asking which bacterium is commonly associated with food poisoning, a condition caused by ingestion of toxins or bacteria-contaminated food.
Step 2: Review the characteristics of each bacterium listed: Streptococcus sanguis is primarily associated with oral flora and dental plaque, not food poisoning.
Step 3: Clostridium tetani is known for causing tetanus, a neurological disease, and is not typically linked to food poisoning.
Step 4: Staphylococcus aureus produces enterotoxins that can contaminate food and cause rapid-onset food poisoning symptoms, making it a common cause of food poisoning.
Step 5: Streptococcus pyogenes is mainly responsible for infections like strep throat and skin infections, not food poisoning.

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주요 개념

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Food Poisoning and Its Causes

Food poisoning occurs when harmful bacteria or their toxins contaminate food, leading to illness. Understanding which bacteria commonly cause food poisoning helps identify the source and symptoms of the infection.
추천 영상:
03:24
Lipid A Causes Septic Shock

Staphylococcus aureus as a Foodborne Pathogen

Staphylococcus aureus is a common bacterium that produces toxins causing rapid-onset food poisoning. It often contaminates improperly stored or handled foods, leading to symptoms like nausea, vomiting, and diarrhea.
추천 영상:
03:40
Introduction to Pathogenic Toxins

Distinguishing Pathogenic Roles of Bacteria

Different bacteria cause distinct diseases; for example, Clostridium tetani causes tetanus, while Streptococcus species are linked to throat infections or dental issues. Recognizing these roles helps differentiate which bacteria are responsible for food poisoning.
추천 영상:
03:40
Introduction to Pathogenic Toxins
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Match the genera of pathogens to their appearance in stained smears: Actinomyces, Bacillus, Clostridium, Mycobacterium, Staphylococcus, Streptococcus.

(a) Methenamine silver <IMAGE>

(b) Gram <IMAGE>

(c) Gram <IMAGE>

(d) Acid fast <IMAGE>

(e) Gram <IMAGE>

(f) Gram <IMAGE>

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교과서 질문

For each of the following diseases or conditions, indicate the genus (or genera) of bacterium that causes it.


___ Scalded skin syndrome

___ Osteomyelitis

___ Pharyngitis

___ Scarlet fever

___ Pyoderma

___ Rheumatic fever

___ Glomerulonephritis

___ Sinusitis

___ Otitis media

___ Anthrax

___ Myonecrosis

___ Diphtheria

___ Leprosy

___ Dental caries

___ Acne



A. Staphylococcus

B. Streptococcus

C. Mycobacterium

D. Listeria

E. Propionibacterium

F. Corynebacterium

G. Bacillus

H. Clostridium

I. Actinomyces

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