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Figure 15.1 Light micrographs of Blastocystis hominis in trichrome-stained faecal smears.

(A) Small multivacuolar and vacuolar forms, highlighting the difficulty in definitively clarifying which form is present in stained smears. Nuclei/mitochondria-like organelles are stained red (indicated by arrowheads).

(B) Small multivacuolar forms, showing variability in morphology. A cyst form, with a green-staining cyst wall, is indicated by double arrowheads.

(C) Multivacuolar form, showing discrete multiple vacuoles.

(D) Cyst form, displaying a 'vacuolated' cytoplasm. The surrounding cyst wall stains green (indicated by double arrowheads).

(E) Vacuolar forms, showing variability in cell shape. Nuclei/mitochondria-like organelles are indicated by arrowheads

Figure 19b.3 Temporal correlation of the clinical signs and symptoms, laboratory findings and diagnostic test results for patients suffering from mild (light color), moderate (more intense color) and severe (most intense color) clinical trichinellosis. The tables on the left indicate qualitative aspects of the infection (e.g. muscle pain, fever, etc.), while those on the right give some indication as to the quantitative measure of each. The colors chosen are matched to the stage of the infection (e.g. green indicates all signs and symptoms of the enteral stage of the infection). Faded colors indicate that that particular qualitative aspect is gradual in onset. The shaded portion (vertical shading betweeen weeks 3 and 6) correlates with the period of infection in which the death of the patient usually occurs if the dose of parasite ingested is high enough to be lethal. Ab, antibody; Ag, antigen

Figure 19b.3 Temporal correlation of the clinical signs and symptoms, laboratory findings and diagnostic test results for patients suffering from mild (light color), moderate (more intense color) and severe (most intense color) clinical trichinellosis. The tables on the left indicate qualitative aspects of the infection (e.g. muscle pain, fever, etc.), while those on the right give some indication as to the quantitative measure of each. The colors chosen are matched to the stage of the infection (e.g. green indicates all signs and symptoms of the enteral stage of the infection). Faded colors indicate that that particular qualitative aspect is gradual in onset. The shaded portion (vertical shading betweeen weeks 3 and 6) correlates with the period of infection in which the death of the patient usually occurs if the dose of parasite ingested is high enough to be lethal. Ab, antibody; Ag, antigen

Principles and Practice of Clinical Parasitology. Edited by S. Gillespie & Richard D. Pearson Copyright © 2001 John Wiley & Sons Ltd Print ISBN 0-471-97729-2 Online ISBN 0-470-84250-4

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