An outbreak of amebiasis in an institution for the mentally retarded in Japan

Japanese Journal of Medical Science & Biology
K NagakuraT Takeuchi


The results of an epidemiological survey in a 190-patient institution for mentally retarded were reported. Twenty percent of the patients had either cysts or trophozoites of Entamoeba histolytica in their stools, and 38% were positive serologically. The amebic outbreak revealed a sex-independent but age-dependent distribution; younger patients had more serious symptoms in cases invasive amebiasis. A high prevalence of amebic infection was found in the heavily retarded patients, and the positive cases tended to concentrate in certain training classes. Further demographic analysis suggests that the amebic infection was possibly caused by abnormal behavior of heavily retarded patients.


Jan 1, 1978·Transactions of the Royal Society of Tropical Medicine and Hygiene·L S DiamondC C Cunnick
Jan 1, 1978·Transactions of the Royal Society of Tropical Medicine and Hygiene·P G SargeauntJ D Grene
Apr 1, 1989·The Journal of Infectious Diseases·Tsutomu TakeuchiS Isomura
Jan 1, 1984·Transactions of the Royal Society of Tropical Medicine and Hygiene·J HartJ Shattach
Sep 10, 1981·The New England Journal of Medicine·S C PhillipsM C White


Aug 1, 1990·Japanese Journal of Medical Science & Biology·K NagakuraT Takeuchi
Dec 29, 2005·Archives of Medical Research·Tomoyoshi NozakiAli Haghighi
Oct 19, 1999·Clinical Infectious Diseases : an Official Publication of the Infectious Diseases Society of America·W A Petri, U Singh
Jan 10, 2014·Biomicrofluidics·Wang ZhaoGuodong Sui
Feb 19, 2005·Parasitology Research·Huey-Shinn Cheng, Lian-Chen Wang
May 24, 2007·Infection Control and Hospital Epidemiology : the Official Journal of the Society of Hospital Epidemiologists of America·Shih-Bin SuChing-Yih Lin
Jan 1, 1996·Critical Reviews in Clinical Laboratory Sciences·W A Petri
Aug 11, 2004·Southern Medical Journal·Christopher D Wells, Miguel Arguedas
Sep 13, 2000·Annals of Tropical Medicine and Parasitology·S GattiM Scaglia

Related Concepts

Age Factors
Abscess, Amebic
Infections, Hospital
Disease Outbreaks
Immunofluorescence Assay
Profound Mental Retardation

Related Feeds


Amoebiasis, infection by the protozoan parasite Entamoeba histolytica, remains a global health problem, despite the availability of effective treatment. Here is the latest research.