Parositology Unit 2 Flashcards
How do flagellates move?
They have at least one flagella (blood spinal, fluid)
How do apicomplexans move?
Internal wave like motions because they require a host
How to amoebids move?
Pseudopods (false feet)
How do ciliated protozoans move?
Undulated hairs or hairs.
What are the two flagellates called?
Giardia and trichomonas
What are the definitive hosts of giardia?
Horses, dogs, cats, ruminants
What are the two distinct forms to giardia?
Motile trophozite and non motile cyst
How is giardia diagnosed?
Elisa test from fresh samples
What is the preferred method of fecal flotation for giardia?
Using zinc sulfate
What is the best way to do a fecal smear looking for giardia?
Fresh unrefrigerated samples less than 30 min old
What are the symptoms of giardia?
Diarrhea, weight loss, anorexia, mucous stool
What is Trichimonas foetus definitive host?
Cattle
What is Trichimonas blagburni definite host?
Cats
What protozoan affects cattles reproductive tract?
TriTrichimonas foetus
What protozoan affects cats cecum/colon?
TriTrichimonas blagburni
What are the symptoms of TriTrichimonas blagburni?
Chronic Diarrhea lasts for weeks, months and years.
What are the symptoms of TriTrichimonas foetus in cattle?
It’s sexually transmitted and it causes infertility and fetal death
What are the three types of apicomplexans?
Coccidia, toxoplasma, and cryptosporidia
What is another name for coccidia?
Cystoisospora spp.
What are coccidias definitive host?
Dogs, cats, swine
How long does it take for oocysts to become infective?
6 hours of being passed into the environment.
What are the symptoms of coccidia?
Yellow mucousy diarrhea, watery yellow and bloody, adults can be asymptomatic and it’s more common in young animals
What are the definitive hosts of Toxoplasma Gondii?
Cats
What’s the best fecal floatation method for diagnosing coccidia?
Centrifuge
What are the intermediate hosts of toxoplasma gondii?
Mammals, birds, and humans
How soon does coccidia sporulate?
1-5 days
What’s is true of coccidia?
It is not immediately infected it has to sporulate
Where do cysts form from coccidia?
Liver, brains and muscle
What acts as paratenic hosts spreading coccidia?
Flies cockroaches and earthworms
What are symptoms of Toxomplasma gondii?
Usually asymptomatic, infects, sick old and young, or with chronic diseases Lungs- respiratory Liver-jaundice Eyes-blindness Neurological symptoms
What are treatments for toxoplasma gondii?
antibiotics and women should not clean litter boxes
What is true of Cryptosporidium spp.
Parasite contaminates 65-97% of water and grounds
And Cannot be removed
Symptoms of cryptosporidium spp.
Asymptomatic bc 35% of pop has antibodies, diarrhea and dehydration
What is used to treat Cryptosporidium spp.
There is no treatment
What disease does brown dog tick transmit?
Babesia Canis
How is Babesia transmitted to dogs?
Tick bites dog and stays attached for 24-48 hours.
What are other ways besides tick bite that Babesia canis is transmitted?
Dog bites from blood to blood and contaminated blood instruments
How is Babesia canis diagnose?
Pear shaped organisms
What tick diseases is diagnosed by tick tack shapes on blood cells and gamonts?
Hepatozoon spp.
What are the two varieties of Hepatozoon spp.
H canis and H americanum
What disease does the lone star tick and American dog tick cause?
Cytauxzoon Felis
What are the intermediate hosts for Ctyauxzoon spp.
Cats and bobcats
Is giardia zoonotic?
No
What are a common name for cestodes?
Tapeworms
What is the definitive host for Diplylidium caninum?
Dogs and cats
Physically description of tapeworms?
Flat multi-segmented and multicellular
How do tapeworms feed?
Tegument(skin)
What is backward facing to provide hooks mean?
Rostellum and anchor
What is Tania saginata definitive host?
Cattle
What is the body of the tapeworms called?
Strobila
What is the tiny head end of tapeworm?
Scolex
What are the segments that make up the tapeworm body?
Proglottids
Do tapeworms have a digestive tract?
No
What does hexacantha mean?
It has six hooks
What is the intermediate host of a heartworm?
heartworms
What does an occult heartworm test mean?
that there is no microfilaria
Heartworms can be incidental parasites in humans?
True
How can it take to detect heartworms?
5-9 months
what is a common name for cestodes?
tapeworms
What is the head of the cestode called?
scolex
what is the scienific name of the double spored tapeworm?
Dyplidium caninum
What is the intermediate host for Dyplidium caninum?
Fleas
Hymenolepsis is interesting because it does not require A)_____ and is nnot directly B)_______.
A) intermediate host
B) infective
Are Echinococcus spp. tapeworms zoonotic?
Yes
What are the cysts called that form in humans?
hydatid
What is the common name of trematodes?
fluke
How many intermediate hosts do pseudotapeworms have?
two
What is the slit like A)_____ called on pseudotapeworms scolrx (head)
bothria
Put in order the flukes life cycle.
Egg Miricidium Sporocyst Redia Cercaria
What is the common name for Platynososum fastosum?
Lizard-poisoning fluke
What parasite causes liver disease and be difficult to diagnose?
Platynososum fastosum or lizard poisoning fluke
What is the most common trematode infection?
Nanophyteus salmincola or the salmon poisoning fluke
Where is the salmon poisoning fluke found?
Pacifica northwest area and canada
What is the common name for the intestinal fluke that infects cats and dogs?
Alaria spp.
What fluke lives in the lungs?
Paragonumus kellicotti
What parastie do you get infected with from eating raw crawfish?
Paragonimus kellcotti
Protozoans are?
unicellular and free living
