Naegleria Fowleri

Topics: Water, Primary amoebic meningoencephalitis, Naegleria fowleri Pages: 3 (1074 words) Published: November 8, 2012
Naegleria Fowleri Causing Primary Amebic Meningoencephalitis (PAM)

Naegleria Fowleri is a fresh water killer that is never seen coming. Its dangerous and contact can be fatal, and 100% of the polled student population had never heard of it.
“Some organisms can live either as parasites or as free-living forms; they are called facultative parasites.”(Britannica) Naegleria Fowleri is a amoeba that lives in fresh water. “It can live from pools without enough chlorine, to rivers. This amoeba can also thrive in lakes and ponds”(Jay) Meaning you can be in danger of being infected at any time. “A total of 36 high-use recreational surface waters in Arizona were surveyed over a period of two years to assess the occurrence of N. fowleri and seasonal and environmental factors. Overall, 9.3% of the warm weather samples collected were positive for N. fowleri, whereas 16.3% of the samples were positive during cold weather.” (Sifuentes) “A total of 2,454 samples from 467 households were examined. Amoebae were found in water samples of 371 (79%) households. Sites most likely to contain amoeba were shower heads (52%) and kitchen sprayers (50%)” (Sifuentes) “Naegleria fowleri has 3 stages in its life cycle: ameboid trophozoites , flagellates, and cysts. The only infective stage of the ameba is the ameboid trophozoite. Trophozoites infect humans or animals by penetrating the nasal tissue and migrating to the brain by the the olfactory nerves causing primary amebic meningoencephalitis (PAM)”(CDC). Naegleria fowleri can be killed by drying. “Drying makes trophozoites nonviable instantly, and cysts nonviable in less than 5 minutes.”(Tally) Or it can also be killed if you swallow it because of the stomach acid”(Tally). “Also saltwater is known to kill it.”(Warren) “Naegleria fowleri is a heat-loving ameba able to grow and survive at higher temperatures, such as those found in hot springs and in the human body, even under fever temperatures. Naegleria fowleri grows best...
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