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The possibility of congenital infection with Acanthamoeba culbertsoni

H N Awadalla1, H A Sadaka

  • 1Department of Parasitology, Faculty of Medicine, Alexandria University, Egypt.

Journal of the Egyptian Society of Parasitology
|December 1, 1996
PubMed

Insights

Acanthamoeba culbertsoni, a pathogenic amoeba, caused granulomatous encephalitis and pneumonitis in infected mice. This study also reported congenital infection in offspring for the first time.

Area of Science:

  • Medical Microbiology
  • Parasitology
  • Pathology

Background:

  • Acanthamoeba culbertsoni is a free-living amoeba known to cause granulomatous amoebic encephalitis (GAE) in humans.
  • Free-living amoebae infections pose a significant public health concern.

Purpose of the Study:

  • To investigate the histopathological effects of Acanthamoeba culbertsoni infection in the brain and lungs of mice.
  • To document the pathological features of Acanthamoeba-induced encephalitis and pneumonitis.
  • To report the occurrence of congenital Acanthamoeba infection.

Main Methods:

  • Isolation of Acanthamoeba culbertsoni from a water sample.
  • Intranasal inoculation of mice with the isolated amoeba.
  • Histopathological examination of brain and lung tissues.

Main Results:

  • Infection led to chronic granulomatous encephalitis in mice, with observed cysts and trophozoites.
  • Acanthamoeba-induced pneumonitis with significant lung consolidation was documented.
  • Congenital infection of offspring by Acanthamoeba culbertsoni was observed and reported.

Conclusions:

  • Acanthamoeba culbertsoni can cause severe neuropathological and pulmonary damage in a murine model.
  • The findings highlight the potential pathogenicity of this amoeba in mammals.
  • The study provides the first report of congenital Acanthamoeba infection.

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