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23 Cards in this Set
- Front
- Back
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What is superficial mycoses?
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The outerlayer of the skin, hair, nails is infected.
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What are some examples of superficial mycoses
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1)Athletes foot
2)Ring worm |
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What is the ring work caused by?
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Tineas sp.
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Superficial mycoses may also cause what?
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Cutaneous-infect skin.
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What is subcutaneous mycoses?
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1)enter via punture wounds
2)Soil borne 3)Slow developing 4)May cause ulcerations and infection of the lymphatic system ex:Sporotrictosis |
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What is systemic mycoses?
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Dimorphic-mycelial form and yeast like form.
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When is the mycelial form predominate.
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In the environment
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When is the yeast like form predominate?
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In the host.
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How does aquisition happen for fungi?
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usually via the spores and are disseminated through the blood stream and may go to the organs.
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Why are fungal diseases hard to treat?
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Because they are Euks and we are Euks. The things we use to kill it will also kill our cells
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What are some examples of fungal diseases?
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Coccidioides immitis
Crytococcus necfermans->infect people with HIv Histoplasm capsulatum->can go intracellularly |
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Upwards of __ million people are infected with these fungi worldwide?
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40, 500,00 annually.
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What is opporunistic mycoses?
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Infect individuals with a acompromised immune system
-HIV -Rhemathoid arthritis -Chemotherapy ex: cryptococcus neoformans Aspergillus fumigatus Candida albicans Pneumocystis carinii-HIV |
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What are protozoan diseases?
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Amebic dysentary
Entameba histlytica |
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How does aquisistion happen for protozoan?
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via cysts that contain protozoan(from contaminated water)
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What happens when you are infected with cysts?
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They go to the intestinal lining and cause diahrea. Occasionally severity may extend to liver and brain infections.
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what is an example of a freshwater amoeba?
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Nagleria->can infect brain when people dive in water it can go up through their nose. may also infect contact lenses
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What is a major protozoan disease?
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Malaria, plasmodium sp, falciparum ovale.
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How many people are infected with malaria every year?
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300,000,000
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How many people die annually bc of malaria?
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1 million
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Who discovered malaria?
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Sir Edmund Ross
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How is malaria spread?
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1)Infected mosquito saliva containing sporozoites
2)Enter blood stream of human host 3)Can go to liver cells 4)come out as Trophozoites 5)Can infect RBC(merozoites) 6)Divide and cause lysis of RBC that results in chills and fever every 72 hrs. -or the blood can reenter a mosquito and get into the gut lining and then goes through the sexual stages and can then infect again. |
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How are people becoming immune to malaria?
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Mutation in hemoglobin gene sequence. this occured in west africa.
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