Another explanation for the observation that more people with schizophrenia had T. gondii infection. Concept introduction: Toxoplasma gondii is an obligate intracellular parasite . It causes the disease toxoplasmosis. Toxoplasmosis is mainly spread by cats by eating infected rodents, birds, and other small animals.

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Definition Definition Organism that lives in the body of another organism and obtains food at the expense of the host. A parasite can directly or indirect harm the host. There are two kinds of parasites: internal and external. An internal parasite lives inside another organism and is known as an endoparasite. An external parasite lives on the body surface of the host and is known as an ectoparasite. Protozoa and helminths are examples of major human parasites.

Chapter 21, Problem 3CT

Summary Introduction

To explain: Another explanation for the observation that more people with schizophrenia had T. gondii infection.

Concept introduction: Toxoplasma gondii is an obligate intracellular parasite. It causes the disease toxoplasmosis. Toxoplasmosis is mainly spread by cats by eating infected rodents, birds, and other small animals.

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Imagine a newly developed drug that is highly lethal against all stages in the life cycle of Toxoplasma gondii. The drug has been found to be safe and effective both for human and for veterinary use. Although the drug can eliminate infection in both humans and cats, its use in humans will have vey little impact on overall prevalence of human toxoplasmosis. Its use in cats, alternatively, could, at least in theory, reduce prevalence in both humans and cats. Explain this difference.

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Answer 2

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Definition Definition Organism that lives in the body of another organism and obtains food at the expense of the host. A parasite can directly or indirect harm the host. There are two kinds of parasites: internal and external. An internal parasite lives inside another organism and is known as an endoparasite. An external parasite lives on the body surface of the host and is known as an ectoparasite. Protozoa and helminths are examples of major human parasites.

Chapter 21, Problem 3CT

Summary Introduction

To explain: Another explanation for the observation that more people with schizophrenia had T. gondii infection.

Concept introduction: Toxoplasma gondii is an obligate intracellular parasite. It causes the disease toxoplasmosis. Toxoplasmosis is mainly spread by cats by eating infected rodents, birds, and other small animals.

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Check out a sample textbook solution

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Answer 3

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Definition Definition Organism that lives in the body of another organism and obtains food at the expense of the host. A parasite can directly or indirect harm the host. There are two kinds of parasites: internal and external. An internal parasite lives inside another organism and is known as an endoparasite. An external parasite lives on the body surface of the host and is known as an ectoparasite. Protozoa and helminths are examples of major human parasites.

Chapter 21, Problem 3CT

Summary Introduction

To explain: Another explanation for the observation that more people with schizophrenia had T. gondii infection.

Concept introduction: Toxoplasma gondii is an obligate intracellular parasite. It causes the disease toxoplasmosis. Toxoplasmosis is mainly spread by cats by eating infected rodents, birds, and other small animals.

Expert Solution & Answer

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Check out a sample textbook solution

See solution

Answer 4

Question

Definition Definition Organism that lives in the body of another organism and obtains food at the expense of the host. A parasite can directly or indirect harm the host. There are two kinds of parasites: internal and external. An internal parasite lives inside another organism and is known as an endoparasite. An external parasite lives on the body surface of the host and is known as an ectoparasite. Protozoa and helminths are examples of major human parasites.

Chapter 21, Problem 3CT

Summary Introduction