Meningoencephalitis Flashcards
What are the two prions for Meningoencephalitis?
Primary Amoebic and Granulomatous Amoebic
What is the causative organism for Primary Amoebic Meningoencephalitis?
Naegleria fowleri
What are the most common modes of transmission for Naegleria fowleri (Primary Amoebic Meningoencephalitis)?
Vehicle (exposure while swimming in water)
What are the virulence factors for Naegleria fowleri (Primary Amoebic Meningoencephalitis)?
Invasiveness
How do you culture/diagnose Naegleria foweri (Primary Amoebic Meningoencephalitis)?
Examination of CSF, brain imaging, biopsy
How do you prevent (Primary Amoebic Meningoencephalitis) Naegleria foweri infection?
Limit warm freshwater or untreated tap water entering nasal passages
How do you treat (Primary Amoebic Meningoencephalitis) Naegleria foweleri infection?
Pentamidine, sulfadiazine
What are the epidemiological features for Naegleria fowleri (Primary Amoebic Meningoencephalitis)?
United States: 0-7 cases a year; 97% case-fatality rate; spreading to northern states as climate warms.
What is the causative agent of Granulomatous Amoebic Meningoencephalitis?
Acanthamoeba
What are the most common modes of transmission for Acanthamoeba (Granulomatous Amoebic Meningoencephalitis)?
Direct contact
What are the virulence factors of Acanthamoeba (Granulomatous Amoebic Meningoencphalitis)?
Invasiveness
How do you culture/diagnose Acanthamoeba (Granulomatous Amoebic Meningoencephalitis)?
Examination of CSF; brain imaging, biopsy
How do you prevent Acanthamoeba infection (Granulomatous Amoebic Meningoecephalitis)?
How do you treat (Granulomatous Amoebic Meningoencephalitis) Acanthamoeba infection?
Surgical excision of granulomas; pentamidine
What are the epidemiological features of Acanthamoeba (Granulomatous Amoebic Meningoencephalitis)?
Predominantly occurs in immunocompromised patients