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Before 2005, why was a test for antibodies against rubella required for females under age 50 before issuing a marriage license?
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Ch. 21 - Microbial Diseases of the Skin and Eyes
Tortora14th EditionMicrobiology: An IntroductionISBN: 9780138200398
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TOC.tableOfContents
- Ch. 1 - The Microbial World and You18
- Ch. 2 - Chemical Principles20
- Ch. 3 - Observing Microorganisms Through a Microscope18
- Ch. 7 - The Control of Microbial Growth20
- Ch. 9 - Biotechnology & DNA Technology20
- Ch. 10 - Classification of Microorganisms15
- Ch. 11 - The Prokaryotes: Domains Bacteria and Archaea14
- Ch. 12 - The Eukaryotes: Fungi, Algae, Protozoa, and Helminths17
- Ch. 13 - Viruses, Viroids, and Prions20
- Ch. 14 - Principles of Disease and Epidemiology21
- Ch. 15 - Microbial Mechanisms of Pathogenicity19
- Ch. 16 - Innate Immunity: Nonspecific Defenses of the Host20
- Ch. 17 - Adaptive Immunity: Specific Defenses of the Host20
- Ch. 18 - Practical Applications of Immunology20
- Ch. 19 - Disorders Associated with the Immune System19
- Ch. 20 - Antimicrobial Drugs19
- Ch. 21 - Microbial Diseases of the Skin and Eyes21
- Ch. 22 - Microbial Diseases of the Nervous System19
- Ch. 23 - Microbial Diseases of the Cardiovascular and Lymphatic Systems20
- Ch. 24 - Microbial Diseases of the Respiratory System20
- Ch. 25 - Microbial Diseases of the Digestive System20
- Ch. 26 - Microbial Diseases of the Urinary and Reproductive Systems19
- Ch. 27 - Environmental Microbiology20
- Ch. 28 - Applied and Industrial Microbiology19
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Tortora 14th EditionCh. 21 - Microbial Diseases of the Skin and EyesProblema 3
Tortora 14th EditionCh. 21 - Microbial Diseases of the Skin and EyesProblema 3Capitolo 17, Problema 3
A 12-year old boy had a fever, rash, headache, sore throat, and cough. He also had a macular rash on his trunk, face, and arms. A throat culture was negative for Streptococcus pyogenes.
The boy most likely had
a. Streptococcal sore throat.
b. Measles.
c. Rubella.
d. Smallpox.
e. Hand-foot-mouth disease.
Guida verificata passo dopo passo1
Step 1: Review the symptoms presented by the boy: fever, rash, headache, sore throat, cough, and a macular rash on the trunk, face, and arms.
Step 2: Note that the throat culture was negative for Streptococcus pyogenes, which helps rule out streptococcal sore throat (option a).
Step 3: Understand the characteristics of each disease option: measles typically presents with fever, cough, coryza, conjunctivitis, and a maculopapular rash starting on the face and spreading downward; rubella also causes a rash but is usually milder and accompanied by lymphadenopathy; smallpox presents with a more pustular rash; hand-foot-mouth disease has vesicular lesions primarily on hands, feet, and mouth.
Step 4: Compare the boy's symptoms and rash distribution with the typical presentation of measles, rubella, smallpox, and hand-foot-mouth disease to identify the most likely diagnosis.
Step 5: Conclude which disease best fits the clinical picture based on the presence of fever, cough, macular rash on face and trunk, and negative streptococcal culture.
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Clinical Presentation of Viral Exanthems
Viral exanthems are rashes caused by viral infections, often accompanied by fever and systemic symptoms like headache and sore throat. Recognizing the pattern, distribution, and type of rash (e.g., macular) helps differentiate diseases such as measles, rubella, and others.
Video consigliato:
03:29
Acute Viral Infections
Differential Diagnosis of Febrile Rash Illnesses in Children
Differentiating between illnesses like streptococcal pharyngitis, measles, rubella, smallpox, and hand-foot-mouth disease requires understanding their unique clinical features, incubation periods, and diagnostic tests, such as throat cultures and characteristic rash patterns.
Video consigliato:
04:07Differential Staining
Role of Throat Culture in Diagnosing Streptococcal Infections
A throat culture is used to detect Streptococcus pyogenes, the bacteria causing streptococcal pharyngitis. A negative culture suggests the sore throat is not bacterial, guiding clinicians to consider viral causes like measles or rubella instead.
Video consigliato:
02:58Growing a Pure Culture
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A 12-year old boy had a fever, rash, headache, sore throat, and cough. He also had a macular rash on his trunk, face, and arms. A throat culture was negative for Streptococcus pyogenes.
All of the following are complications of this disease except
a. Middle ear infections.
b. Pneumonia.
c. Birth defects.
d. Encephalitis.
e. All are complications of this disease.
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