STRONA G£”WNA » Lecture - 9 (1st DDS Program)

Wydzia≥ Lekarski
MD (6-year)
DDS (5-year)
Pharmacy (6-year M.Sc.)


Lecture - 9 (1st DDS Program)

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1. Infective stages of parasites that occur naturally in food.
a. in fish:
larvae (metacercaria) of Clonorchis sinensis
larvae (plerocercoid) of Diphyllobothrium latum
larvae of Anisakis simplex
b. in pork meat:
larvae of Trichinella spiralis
larvae (cysticercus larvae) of Taenia solium
cyst of Toxoplasma gondii
c. in beef meat:
larvae (cysticercus larvae) of Taenia saginata
cysts of Toxoplasma gondii
d. in crabs:
larvae of Paragonimus westermani
e. on plants:
larvae of Fasciolopsis buski
larvae of Fasciola hepatica

2. Infective stages of parasites that may contaminate food. They get into the organisms with food contaminated by:
a. human stool:†
eggs of Ascaris lumbricoides
cysts of Entamoeba histolytica
b. human or animals stool:
cysts of Giardia intestinalis
oocysts of Cryptosporidiumparvum
c. dog’s and another canines stool
larvae (echinococcus larvae) of Echinococcus granulosus
larvae (echinococcus larvae) of E. multilocularis
larvae of Toxocara canis
d. cat’s stool
larvae of Toxocara cati
oocysts of Toxoplasma gondii

3. Basic ways to prevent foodborne and waterborne parasites:
Extensive therapy treatment of infected humans and animals.
Education humans. Teach children the importance of washing hands to prevent infection.
Cooking of meat and inspecting meat.
Peel or wash fruits and vegetables thoroughly before eating.
Avoid ingestion of food include grass, herbs, greens, or berries gathered from fields, water, or soil contaminated with stool from dogs.
Do not drink unpasteurized goat’s milk.
Wear gloves when gardening and during any contact with soil. Wash hands with soap and water after gardening or contact with soil or sand.
Do not eat raw or undercooked oysters, mussels, or clams.
Wash cutting boards, dishes, utensils, and hands with hot soapy water after contact with raw meat, seafood, or unwashed fruits or vegetables.
If you are pregnant or immunocompromised, avoid changing cat litter if possible and don’t adopt or handle stray cats, especially kittens. Keep your outdoor sandboxes covered.†
Wash your hands with soap and water after playing with your pets or other animals, after outdoor activities, and before handling food.†
Do not allow children to play in areas that soiled with the pet or other animal feces.

 Author: Piotr Nowosad date: 2020-05-06  print    back  
All rights reserved Department of Biology and Medical Parasitology ® 2020