lec 13-fungi and worms Flashcards
How many cells does a worm have?
many- multicellular
metazoan parasites are also called __
melminths
Schistosomes cause_
Swimmer’s itch and Schistosomiasis
Filariasis causes
river blindness and lymphatic filariasis
faiulre to thrive syndrome and iron dfeficinecy anemia are caused by what metazoan parasite?
hookworm
besides hookworm,Filariasis, and schistomes, name 3 more metazoan parasites!
guinea worm, heartworm, tapeworm
what is the deinitive host for schistozomes?
HUman liver/intestine/bladder
What happens before skin penetration of schistomes?
Eggs are laid, grow into fresh water snails, make cercaria
A single schistomes worm makes how many eggs?
2000
most schistome eggs get stuck in the body, causing chronic disease and what type of issues?
obstructions, liver cirrhosis, cancer, hepatosplenic enlargement
In swimmer’s itch the definitive host is?
fresh water fowl
In swimmer’s itch, what happens before human penetration?
eggs become the intermediate fresh water snails, then cercariae
In the filaria life cycle, what is the progeny?
microfiliarae
WHat is the filiarae intermediate?
black fly/mosquito
Filiarae creates what problems?
skin/lymph infection, maturation
How many people are at risk and infected for onchocerca?
120 million at risk, 18 million infected
chronic river blindness leads to ___
opaque cornea
filiariasis causes what to form under the sin? symptoms are?
nodules- inflammation, itch, swell, loss of pigmentation
what is the medicine used to treat lymphatic filiariasis?
Ivermectin
How many are at risk and affected by lymphatic fillariasis?
1.2 billion at risk, and 120 million affected
Obstruction of the lymphatic system leads to what? Is this larvae or adult forms?
Swelling (elephantiasis), adult
The hookworm penetrates the skin, and then migrating where, ecentually causing an intestinal infection.
heart, lungs, esophagus
Hookworm adults or larvae penetrate human skin?
larva
Hookworms feed on __, causing __hemorrhaging.
blood; intestinal
hookwroms can cause
stunted growth and anemia
The intermediate for the guinea worm is?
the water flea
Water fleas are ingested through what medium?
Though unfiltered water
Heartworm is in which mammals? another name for this disease is?
dogs and humans; dirofiliariasis
Suckers or hooks on both sides, flatworms, what do I describe?
tapeworms
Naegleria fowleri is a?
brain eating ameoba
When is Naegleria fowleri spread? (season) and to whomst?
summer- humans and cattle
Naegleria fowleri is prevalent in the locations of?
EU, Aus, Arizona
Naegleria fowleri causes what disease?
PAM (primary amebic meningocephalitis)
_ days from symptom to death in PAM
5
How many cells does non AIDS fungi have?
1
a fungal infection of the keratin
component of the hair, skin or nails is called
tinea
on or with hair shafts, head
capitis type of tinea
ringworm of hairless skin
glabrosa
nigra is?
dark lesions on palms
genitocrural areas (jock itch) is called?
cruris – genitocrural areas (jock itch)
Inflammation associated with the edge of the infection
Central area has clearing
No worms! describes?
ringworm
sporothrix is what type of fungus species?
dimorphic
A pulmonary infection will cause what issues?
Necrosis in lung and Hyphae in lung
is Candida albicans
and related species rare or common?
common
is Cryptococcus neoformans common or rare?
rare
is Pneumocystis carinii common or rare?
common
This is invasive and causes a fungal ball and allergy. What is it called?
aspergillus
sinusitis starts in the sinus, moving to
the obit, palate, face, nose, and brain
sinustis coma death occurs in what timeframe?
4 weeks after symptoms
After edema and eythema, headace, and acute symptoms, what happens next in sinusitis?
blindness and cerebal infaction
How is c.auris transmitted?
person to person it is on skin, and hard surfaces for weeks
How resistant is c. auris to disinfectants?
90%
What testing can we do for c. auris in da lab?
PCR, sequencing, MALDI-TOF, assay
Fusarim was found in which recall item?
bauch and laumb renu contact solution
Stachybotrys is a ___
home fungal infection
Circulating antibodies are the cause of infection, T?F?
FALSE- EVERYONE HAS THEM AND WE ARE CONSTANTLY EXPOSED
