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Flashcards in Protozoa Deck (15):
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3 types of parasites

1. protozoa ( eukaroytes)
2. Metazoa aka Helminths (multicullar animals)
3. Ectoparasites (head lice/mites)

1

protozoa

-most reproduce asexually by fission, budding, or schizogogy ( div. of nucleus and cell)
- some reproduce sexually and have gametes such as malaria and plasmodium
-some have cysts and a thick coat for env. protection called trophozoite
-cyst develop into a oocyst

2

Entamoeba histolytica

-protozoa
-agent of amoebic dysentery
-primary food is RBC-ulcer formation
-tryphozoite and cyst form
-high resistant of chlorine
-treated with antibiotics

3

Giardia lamblia

Protozoa
-beaver fever
-cause intestine upsets, nausea, cramps, diarrhea
-cyst and trophozoite
-high resistance to chlorine
-treat with antibiotics

4

Babesia microti

protozoa
-tick borne infection
-northwestern US
-microbes replicate in RBC, cause anemia

5

cryptosporidium parvum

protozoa
-obligate intracellular parasite (cow, rats, dogs, cats)
- chronic diarrhea, severe in immunocompromised
-high resistance to chlorine
-no effective treatment

6

Trichomonas vaginalis aka "trich"

protozoa
-transmitted from mucus membrane to mucus membrane
-No cyst, person to person, sexual transmission
-cause intense itching and inflammation of tissue
-found in vagina and male urethra
-treated with imidazoles

7

Acanthamoeba sp

protozoa
-grows in water, cyst in adult
-contact lens-eye loss infection
-cyst and trophozoite

8

Toxoplasma gondii

protozoa
-found in uncooked meat and cats
-life cycle in cat liter
-trophozoites called tachyzoites
-dangerous in pregnant women ( congenital infection in uterus)

9

Trypanaroma

protozoa
-blood parasite, found in s. america and africa
-vector gets into bug, through food

10

t. brucei gambiense/rhodesiense

cause African sleeping sickness ( fly vector)

11

T. cruzi

cause Chagas disease in South America ( kissing bug at nighttime around mouth)

12

Leishmania sp.

protozoa
-a tissue parasite, spread through sandfly

13

plasmodium sp

protozoa
-cause of malaria
-4 types through transmission of mosquito
falciparum- most dangerous, cause cerebral malaria, anemia, cardiovascular collapse
malariae, orale, virax
-knowlesii ( NEW): monkey malaria

14

symptoms of malaria

paraoxysms ( fevers and chills) caused by release of toxic breakdown where RBC rupture, anemia, blackwater fever