Although it is rare to see primary amebic meningioencephalitis (PAM) cases as a result of
N. fowleri infection from swimming pools, the experts agree that it does occur (Shaw, 2008) and (Shakoor et al., 2011). It has even been found in indoor pools (Kadlec, Skvarova, Cerva, & Nebazniva, 1980). Still though, an amoeba is still much more sensitive to proper chlorination than microbial cysts such as those found in
Giardia lamblia or
Cryptosporidium parvum.
References
Kadlec, V., Skvarova, J., Cerva, L., & Nebazniva, D. (1980, February). Virulent Naegleria fowleri in indoor swimming pool. Folia Parasitologica, 27(1), 11-70. Retrieved from
http://www.researchgate.net/publication ... b_srch_pub
Shakoor, S., Beg, M. A., Mahmood, S. F., Bandea, R., Sriram, R., Noman, F., ... Zafar, A. (2011, February 1). Primary amebic meningioencephalitis caused by Naegleria fowleri, Karachi, Pakastan. Emerging Infectious Diseases, 17, 258-261. Retrieved from
http://web.ebscohost.com.ezproxy.ttuhsc ... =5&hid=108
Shaw, F. E. (Ed.). (2008, May 30). Primary amebic meningoencephalitis — Arizona, Florida, and Texas, 2007. CDC MMWR: Morbidity and Mortality Weekly Report, 57, 573-577. Retrieved from
http://web.ebscohost.com.ezproxy.ttuhsc ... =5&hid=108