Nothing Special   »   [go: up one dir, main page]
Scribd Logo
Upload

Welcome to Scribd!

  • 126 views

    Zoonotic Parasites

    Uploaded by

    Rans Ronquillo
    Zoonotic diseases are any disease which may be passed from animals to people or from people to animals. Approximately 60% of all human pathogens are zoonic 75% of emerging infectious diseases have an animal origin Growing need for veterinarians and physicians to work together. Parasite vectors: fleas, ticks, mites, mosquitoes, flies, and other insects people become infected when a vector picks up the parasite from an infected animal and infects

    Copyright:

    Attribution Non-Commercial (BY-NC)
    Download as PPT, PDF, TXT or read online from Scribd

    Zoonotic Parasites

    Uploaded by

    Rans Ronquillo
    126 views36 pages
    Zoonotic diseases are any disease which may be passed from animals to people or from people to animals. Approximately 60% of all human pathogens are zoonic 75% of emerging infectious diseases have an animal origin Growing need for veterinarians and physicians to work together. Parasite vectors: fleas, ticks, mites, mosquitoes, flies, and other insects people become infected when a vector picks up the parasite from an infected animal and infects

    Original Description:

    Copyright

    © Attribution Non-Commercial (BY-NC)

    Available Formats

    PPT, PDF, TXT or read online from Scribd

    Did you find this document useful?

    Is this content inappropriate?

    Zoonotic diseases are any disease which may be passed from animals to people or from people to animals. Approximately 60% of all human pathogens are zoonic 75% of emerging infectious diseases have an animal origin Growing need for veterinarians and physicians to work together. Parasite vectors: fleas, ticks, mites, mosquitoes, flies, and other insects people become infected when a vector picks up the parasite from an infected animal and infects

    Copyright:

    Attribution Non-Commercial (BY-NC)
    Download as PPT, PDF, TXT or read online from Scribd
    Download as ppt, pdf, or txt
    126 views36 pages

    Zoonotic Parasites

    Uploaded by

    Rans Ronquillo
    Zoonotic diseases are any disease which may be passed from animals to people or from people to animals. Approximately 60% of all human pathogens are zoonic 75% of emerging infectious diseases have an animal origin Growing need for veterinarians and physicians to work together. Parasite vectors: fleas, ticks, mites, mosquitoes, flies, and other insects people become infected when a vector picks up the parasite from an infected animal and infects

    Copyright:

    Attribution Non-Commercial (BY-NC)
    Download as PPT, PDF, TXT or read online from Scribd
    Download as ppt, pdf, or txt
    of 36

    Zoonotic Parasites

    Copyright 2010. PEER.tamu.edu

    What are zoonotic diseases

    According to the CDC* a zoonotic disease is any disease which may be passed from animals to people or from people to animals.

    CDC: U.S. Communicable Disease Center

    Zoonotic Diseases
    Approximately 60% of all human pathogens are zoonotic 75% of emerging infectious diseases have an animal origin Growing need for veterinarians and physicians to work together

    Causes of Zoonotic Disease


    Bacteria
    Fungi Virus Parasites

    Parasites and Animals

    Many methods of parasite transmission to people involve animals

    Can you name some animal parasites?

    Vector-borne Parasites
    A vector is an agent which transfers a parasite from one host to another Typical parasite vectors: fleas, ticks, mites, mosquitoes, flies, and other insects People become infected when a vector picks up the parasite from an infected animal and infects a human

    Parasites carried by Vectors

    Many parasites that are carried by vectors are often found in the blood of humans and animals

    Trypanosoma Cruzi

    Causes Chagas disease. Damage to heart, digestive tract, and brain (in children). Spread by the Kissing Bug, native to South America and the southern US The bug bites the human then defecates next to the wound. Rubbing bite wound spreads parasite into the wound. Parasite can cycle from animals like armadillos, raccoons, opossums, and foxes to bugs to humans.

    Chagas Disease & The Kissing Bug

    Dont Kiss ME!!!

    Trypanosoma cruzi in the blood

    Kissing Bug found in Texas

    Babesia
    Intracellular protozoa found in red blood cells If you play around trees, Spread by infected Ticks

    check your head and body for me!!

    DID YOU KNOW?


    Texas A&M University College of Veterinary Medicine was started to stop the spread of the Cattle Fever Tick. The causative agent was a species of Babesia that the ticks were spreading to Texas cattle.
    Thanks TEXAS A&M!!

    Leishmania
    Unlike Babesia and Chagas Disease, Leishmania live in tissue and not the blood Spread through the bite of an infected Sandfly*

    *common on Caribbean beaches

    Leishmania

    Human foot

    Waterborne Parasites
    Spread when humans come into contact with water that has been contaminated by an infected animal Common waterborne parasites include

    Giardia Cryptosporidium

    Giardia & Cryptosporidium

    Giardia & Cryptosporidium

    Get from swallowing water contaminated by another infected human or animal Giardia is the 2nd most common parasitic disease in people Cryptosporidium is the most common cause of diarrhea from swimming Both can cause severe diarrhea
    Gross!!! Dont drink the water your swimming in!!!

    How Do People Get Parasites

    Methods of Parasite Transmission


    Insect bites Animal feces Handling raw meat and fish Handling cat litter boxes Contaminated fruits and vegetables Infected food handlers Contaminated water Contact with an infected person

    I need to WASH MY HANDS!!!

    Broad Categories of Transmission


    Vectorborne (insects) Waterborne Fecal Oral Transmission Contaminated Meat

    Fecal-Oral Transmission
    Most common way people become infected with zoonotic parasites Parasites are spread to humans when they ingest the eggs from the feces of an infected animal I dont feel so good Parasites spread by fecal oral transmission generally live in the intestinal tract

    Spread by Fecal Oral Transmission


    Hookworms Roundworms Hydatid Disease Toxoplasmosis

    Hookworms & Roundworms

    They are like monsters!!!!

    Hookworms & Roundworms

    Carried by dogs and cats Kids often get infected from playing in sand boxes which animals have defecated Or by putting toys in their mouth which have been on the ground

    Hookworms

    Can penetrate the skin and gain entry into the human body Bare feet are a common route of entry
    Wearing shoes is one of the best ways to prevent parasites from entering your feet!!!

    Hydatid Disease

    After Humans consume the eggs passed by dogs the worms can form huge cysts in the body

    Toxoplasmosis

    How many have of you have heard that pregnant women shouldnt clean cat litter boxes? That is because of the potential for them to contract Toxoplasmosis which can cause them to lose their unborn child.

    Toxoplasmosis
    Even though it is commonly associated with pregnancy and litter boxes, toxoplasmosis is more commonly transmitted through undercooked meat According to the CDC toxoplasmosis is the 3rd leading cause of foodborne Order your related deaths in the US food to be

    cooked all the way!!

    Contaminated Meat
    Meat can be contaminated with harmful bacteria and can also contain parasitic cysts which may infect people. Common Parasites Found in Meat

    Toxoplasmosis Trichinella Taenia Gnathostomosis

    Trichinosis & Taenia

    Both caused by eating cysts in undercooked pork or beef Incidence rate has decreased with better animal management and slaughter protocol Fully cook your meat!

    Cysticercosis

    If a person consumes Taenia eggs they can develop cysts in their brain!

    Gnathostomosis
    Similar to Taenia and Trichonosis, but gnathostomosis is found in raw fish What area do you think this disease is most common? Asia

    Summary

    Zoonotic parasites have many routes of transmission to people


    Vectors Water Fecal Contamination Infected Meat

    So How Can You Protect Yourself?

    Preventing Zoonotic Parasites

    Brainstorm some ways we can prevent them


    Always wash your hands Keep sand boxes covered Wear shoes Pick up animal feces when possible Dont drink untreated water Cook meat thoroughly

    References
    http://www.dpd.cdc.gov/DPDx/default.ht m http://cal.vet.upenn.edu/projects/dxendo par/index.html www.nih.gov www.nsf.gov www.floridahealthfinder.gov

    You might also like