Vocabulary Building Studies
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Instructions
Read and analyse the paragraph carefully. Some important structures have been colored already. Listen and read aloud as many as possible.
Step 2 - Paragraphs for Medical Studies-2

Syphilis is a chronic infectious disease caused by the bacterium Treponema pallidum. It is usually acquired by sexual contact with another infected individual. Syphilis is remarkable among infectious diseases in its large variety of clinical presentations. It progresses, if untreated, through primary, secondary and tertiary stages. The early stages (primary and secondary) are infectious. Spontaneous healing of early lesions occurs, followed by a long latent period. In about 30% of untreated patients, late disease of the heart, central nervous system (CNS) or other organs ultimately develops. At one time this disease was termed "the great imitator". Although the disease is less common now than previously, it remains a great challenge to the clinician because of its protean manifestations and is of great interest to biologists as well because of the long and alternating balance between the host and the invading spirochete.

Instructions