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Syphilis and Pallidum Characteristics

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Questions and Answers

What is the ideal oxygen range for the growth of Treponema pallidum?

10% - 15% oxygen

Zero oxygen required

3% - 5% oxygen (correct)

20% - 25% oxygen

Which of the following is a characteristic of the primary stage of syphilis?

Painful lesion

Gumma formation

Dry, nontender lesion (correct)

Highly infectious lesions

What is the name of the serological test that remains positive the longest in syphilis diagnosis?

RPR

VDRL

TPIA

FTA-ABS (correct)

Which of the following is a treatment option for syphilis?

All of the above Signup and view all the answers

What is the characteristic morphology of Treponema pallidum under dark field microscopy?

Long, with 10-13 coils and 3 fibrils Signup and view all the answers

What is the time period for the development of the tertiary stage of syphilis?

10 to 25 years Signup and view all the answers

What is the primary mode of transmission of Leptospirosis?

Contact with urine of infected animals and polluted water Signup and view all the answers

What is the primary method of diagnosing syphilis using direct visualization?

Dark field microscopy Signup and view all the answers

What is the characteristic shape of Treponema Denticola?

Thin, coiled spirochetes with a hook at both ends Signup and view all the answers

What is the gold standard for laboratory diagnosis of Leptospirosis?

Leptospire microscopic agglutination test Signup and view all the answers

What is the purpose of the VDRL test in syphilis diagnosis?

To monitor the treatment of syphilis Signup and view all the answers

What is the characteristic of Borrelia Burgdorferi that distinguishes it from other bacteria?

Weakly staining, gram negative Signup and view all the answers

What is the characteristic of the Treponema pallidum subsp. pertenue?

It causes non-venereal endemic syphilis Signup and view all the answers

What is the primary lesion of Pinta disease caused by Treponema Carateum?

Primary lesion with enlargement of the regional lymph nodes Signup and view all the answers

What is the principle of the VDRL test?

Reagin binds to the test antigen, causing flocculation Signup and view all the answers

What is a common cause of false-positive VDRL results?