Protozoa - Diarrhea and Meningoencephalitis Causing Flashcards
Protozoa are _____
Unicellular
Unicellular parasites?
Protozoa
What are 3 Diarrhea causing Protozoa?
Entamoeba Histolytica
Giardia Lamblia
Cryptosporidium Parvum
What are 3 Diarrhea causing Protozoa?
Entamoeba Histolytica
Giardia Lamblia
Cryptosporidium Parvum
How is Entamoeba Histolytica transmitted?
Fecal-oral transmission
- Diarrhea causing
Symptoms of infection with Entamoeba Histolytica?
Typically Asymptomatic
= Can cause bloody diarrhea and liver abscesses
Bloody diarrhea and Liver abscesses is due to which protozoa?
Entamoeba Histolytica
In what is Giardia Lamblia present?
Sewage contaminated food and water
What is the reservoir for Giardia Lamblia?
Beavers and rodents
What prevents proper digestion of Giardia Lamblia?
Small intestine
Symptoms of infection with Giardia Lamblia?
Fatty, Malodorous Diarrhea with intermittent watery diarrhea
Fatty, Malodorous Diarrhea is due to which protozoa?
Giardia Lamblia
Which form of Cryptosporidium Parvum is infective?
Acid-fast Oocyst form
Where is Cryptosporidium Parvum usually found?
Sporadic WATER outbreaks - swimming pools
Symptoms of infection with Cryptosporidium Parvum in immunocompetent people?
Self limited, 10-14 days of watery diarrhea and abdominal pain with nausea and vomiting
Self limited, 10-14 days of watery diarrhea with abdominal pain and nausea is due to which protozoa?
Cryptosporidium Parvum in immunocompetents
Symptoms of infection with Cryptosporidium Parvum in HIV patients?
Persistent diarrhea and significant wasting
What do the Free-living Amoeba Protozoas cause?
Meningoencephalitis
What are the 3 Free-living Amoeba that cause Meningoencephalitis?
Naegleria Fowleri
Acanthamoeba
Balamuthia
What are the 3 Free-living Amoeba that cause Meningoencephalitis?
Naegleri Fowleri
Acanthamoeba
Balamuthia
Where is Naegleria Fowleri found?
FRESH WATER - lakes, ponds, canals
What is infection with Naegleria Fowleri associated with?
Traumatic implantation of water toward the cribriform plate - water skiing, diving, etc
Implantation of water toward the cribriform plate due to water skiing or diving is associated with?
Naegleria Fowleri
Symptoms of infection with Naegleria Fowleri?
Acute Meningoencephalitis - seizures, mental changes, death
Naegleria Fowleri causes death usually within ____
1 week
Acanthamoeba contaminates?
Sterile solutions
Symptoms of infection with Acanthamoeba?
Contact lens Keratitis and Chronic Meningoencephalitis
What protozoa can cause contact lens keratitis?
Acanthamoeba
Symptoms of infection with Balamuthia?
Skin lesions and Chronic Meningoencephalitis
What protozoa can cause skin lesions?
Balamuthia
Which free-living amoeba cause chronic meningoencephalitis?
Acanthamoeba
Balamuthia
Which free-living amoeba cause acute meningoencephalitis?
Naegleria Fowleri
