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Estimated Worldwide Prevalence of Parasitic Infections – Parasites

by Vincent Racaniello, PhD
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    00:00 Let's look at the incidence of parasitic infections worldwide.

    00:04 Many many people acquire these infections and I suspect that these numbers on this slide are probably an underestimate.

    00:12 Way at the top, toxoplasmosis. One to two billion people, probably more, are infected with toxoplasma.

    00:20 I think most of them are fine but again in immunosuppressed individuals it can be a problem.

    00:26 Many people have ascariasis worms, hookworm, amebiasis, schistosomiasis and malaria in a hundreds of millions.

    00:34 Strongyloides. Guinea worm infection is not what we talk about. This is nearly been eradicated.

    00:40 And this is spread by contaminated water.

    00:42 And the carter foundation has led a very big effort which has brought this down to almost zero.

    00:49 These are all called neglected tropical diseases because they typically occur in tropical countries that are underdeveloped and they don't get much attention. There's now a big effort globally to raise money to research into these diseases and to come up with either preventions or drugs that can cure them.

    01:11 So I hope now that after you've listened a bit about parasite, you can tell me the definition of a parasite.

    01:17 You understand exactly what a zoonosis is.

    01:21 You should be familiar with the different types of protozoan and helminthic parasites.

    01:26 And you should have an overview of how parasitic infections are transmitted.

    01:32 I hope you enjoyed that. Please take care of your food and we'll see you next time.


    About the Lecture

    The lecture Estimated Worldwide Prevalence of Parasitic Infections – Parasites by Vincent Racaniello, PhD is from the course Microbiology: Introduction.


    Included Quiz Questions

    1. Toxoplasmosis
    2. Guinea worm infection
    3. Malaria
    4. Giardiasis
    5. Filariasis

    Author of lecture Estimated Worldwide Prevalence of Parasitic Infections – Parasites

     Vincent Racaniello, PhD

    Vincent Racaniello, PhD


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