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Chapter 1 Part 5

Protozoan Pathogens

TermDefinition
Protozoans are unicellular, living, eukaryotes, microscopic, motile, and have no cell wall
Name 4 protozoan diseases 1. Trichoomonas Vaginalis 2. Tchagas disease 3. African sleeping sickness 4. Malaria
Parasitic protozoa has AFA which means what? Apicomplexa, Flagellates, and Amoebae
Malaria is caused by plasmodium protozoan and spread by mosquitos
process of malaria mosquito bites infected person-infected mosquito bites a person-person becomes infected due to having an infected liver-they get infected red blood cells
four symptoms of malaria 1. high fever 2. headaches 3. nausea 4. skin chills or sweating
balanced polymorphism = Heterozygous advantage in sickle cell Anaemia
AA- susceptible to malaria but no sickle cell disease
Aa- resistant to malaria and only mild sickle cell disease
aa- resistant to malaria but has no fatal sickle cell disease
Chagas disease is caused by Trypanosoma cruzi and spread by "kissing bug"
acute phase of chagas disease positive culture and positive PCR result
Chronic Phase of chagas disease diagnosis based on serologic testing but positive PCR result in 20-70% of infected persons
Intermediate form of chagas disease no signs or symptoms but has disease
Leishmaniasis is caused by leishmania protozoa and spread by sandfly
treatments of protozoan diseases 1. only some drugs are available
why are most protozoan diseases difficult to treat 1. they have eukaryotic cells like human cells which makes them less drug targets 2. drug resistance
what are the vaccine difficulties that make protozoan diseases difficult to treat? 1. immune evasion 2. makes a complex life cycle
how do eukaryotes differ from prokaryotes? eukaryotes have a nucleus and membrane bound organelles
Are protozoans unicellular or multicellular unicellular
Created by: Blue1478679
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