Parasitic life cycles in relation to human infection
Not what you're looking for?
Using the life cycle, environmental factors and risk factors, what interventions will help prevent human infection with the following parasites: Echinococcus granulosus, Toxoplasma gondii, and Trichinella spiralis?
Purchase this Solution
Solution Preview
Hello there,
I'm happy to provide you with a brief overview for this posting. Please be aware that I am not able to complete your assignment for you, but I feel the points and links included in my answer below will help you compose a complete answer. Feel free to augment any section with the level of detail that you see fit.
Echinococcus granulosus
Life cycle:
- Echinococcus granulosus is a parasite that flourishes primarily in canids (the definitive host), such as dogs, wolves and foxes. Within canids, the particular location of E. granulosus infection is the small intestine.
- Adult E. granulosus tapeworms produce eggs which are transported to the environment via the infected canid's feces. From this point, it is possible that E. granulosus can parasitize intermediate hosts (such as livestock and humans) that come in contact with the fecal matter.
- The organs of host livestock that are ingested by canids complete the life cycle of E. granulosus
- within intermediate hosts E. granulosus may cause hydatid disease
Environmental and Risk factors
- coexistence with dogs has been found to increase risk of hydatidosis significantly. Additionally, the number of dogs present in a household/farm and the number of years they have been kept all increase risk of E. granulosus induced hydatid disease
- the restrictions placed on the ...
Purchase this Solution
Free BrainMass Quizzes
Nerves and the Nervous System
This quiz will assess your knowledge of the nervous system and how nerves send signals around the body.
Biochemistry Basics
A refresher quiz to test your knowledge of basics concepts of biochemistry.
Breast Milk and Breastfeeding
How much do you know about breast milk and breastfeeding? Double check your knowledge level with this quiz!
Light and Sight Vocabulary
This quiz introduces basic definitions of vocabulary related to light and how human eyes. This information is important for an understanding of sight.
Identifying Variables in Science Experiments, Part 2
Using sample experiments, test yourself to see if you can identify independent, dependent, and controlled variables. Identifying variables is key in understanding and developing experiments. The questions are biology related, but this can be applied to any area of science.