Parasites

Published on 18/02/2015 by admin

Filed under Allergy and Immunology

Last modified 18/02/2015

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Chapter 29

Parasites

Introduction to Parasitology

Overview

Pathogenesis

1. Entry of organisms occurs primarily by ingestion or direct penetration of the skin (sometimes by bite of insect vector).

2. Replication of parasites takes place in specific cell types or organs.

3. Cell and tissue damage result from four general mechanisms.

4. Immune escape

Disease manifestations

Diagnosis

Prevention

Treatment (Table 29-1)

TABLE 29-1

Antiparasitic Drugs

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II Protozoan Parasites (Table 29-2)

Intestinal and urogenital protozoa

1. Cryptosporidium species

2. Entamoeba histolytica

3. Giardia lamblia

4. Trichomonas vaginalis

Blood and tissue protozoa

1. Leishmania species

2. Plasmodium species