Lecture - Mycotoxins and Protozoa

Lecture - Mycotoxins and Protozoa - CDC Questions: 1. 2. 3....

Info iconThis preview shows pages 1–7. Sign up to view the full content.

View Full Document Right Arrow Icon
Click to edit Master subtitle style CDC Questions: 1. Diarrheal diseases are more common in the summer than the winter? 2. Most foodborne illnesses are due to germs of animal origin. 3. Salmonella is the most common cause of hospitalizations due to foodborne illnesses. 4. Food & water contaminated with pathogenic microorganisms are the major environmental sources of gastrointestinal illnesses.
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 2
Pathogenic Protists Prokaryotes vs. Eukaryotes vs. Archea Single celled Eukaryotes = protists (protoctista, protozoa, protophyta) Phylum for protists: Apicomplexa = Cryptosporidia, Cyclospora, Toxoplasma , Isopora Sarcomastigophora (flagellates, amoeba) = Giardia, Entamoeba Ciliophora (cilliates) = Balantidium Microspora Fungi: Aspergillus and Penicillium Dinoflagellates = Toxic algae Diatoms = Toxic algae
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Protozoan life cycles Trophozoite : motile, metabolically active stage Schizont : asexual stage, makes multiple daughter cells Merozoites : daughter cells Gametocytes : sexual stage Zygote : product of gametocytes Oocyst : resistant stage, produces trophozoites Trophozoite Schizont Merozoite s Gametocyte s Zygote Oocyst Sporozoite
Background image of page 4
C=conoid m=microneme dg=dense granules n=nucleus r=rhoptries pv=vacuole
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Very small Apicomplexan (3-5μm): Parasites of mammals, birds, reptiles and fish Usually from contaminated water Colonizes epithelial intestinal cells Clinical presentation: Mostly self-limiting mild diarrhea
Background image of page 6
Image of page 7
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 09/25/2010 for the course FOS 4222 taught by Professor Rodrick during the Spring '08 term at University of Florida.

Page1 / 25

Lecture - Mycotoxins and Protozoa - CDC Questions: 1. 2. 3....

This preview shows document pages 1 - 7. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online