In article <Pine.OSF.3.93.970206160319.26202C-100000 at lionfish.jcu.edu.au> Richard.Speare at jcu.edu.au (Richard Speare) writes:
>From: Richard.Speare at jcu.edu.au (Richard Speare)
>Subject: Re: Cysticercosis
>Date: 5 Feb 1997 22:04:04 -0800
>Organization: BIOSCI International Newsgroups for Molecular Biology
>Sender: daemon at net.bio.net>Distribution: world
>Message-ID: <Pine.OSF.3.93.970206160319.26202C-100000 at lionfish.jcu.edu.au>
>References: <01bc138d$e3946140$14a92399 at 708661617>
><Anybody has seen cysticercosis in a person who has, since birth, been a
><strict vegetarian? Has oral-fecal transmission of cysticercosis been
><reported? Saw one case last month.
><Would appreciate input.
><LRVives at msn.com
>Cysticercosis is due to ingestion of eggs of _Taenia solium_ by a person.
>The eggs come from the faeces of a person infected with the mature
>tapeworm, but the person who ingests the eggs acts like an intermediate
>host. The eggs hatch in the small intestine, enter the bloodstream and
>form cysts in many organs. People only acquire the adult tapeworm by
>eating cysticerci in pig muscle. So cysticercosis does not require the
>person to eat pork since transmission is faecal- oral. Consequently,
>vegetarians are liable to develop cycticercosis, but if they eat no pork
>they will not acquire adult _T. solium_ in their intestines.
>Some interesting studies on cysticercosis have been done on orthodox Jews
>who eat no pork. From the tapeworm's point of view an orthodox Jew and a
>vegetarian are the same. If you would like a reference to these studies,
>I can supply a recent one when I return to my home base.
>Department of Public Health and Tropical Medicine
>James Cook University
>email: Richard.Speare at jcu.edu.au
To put the same in a nutshell:
Cysticercosis is transmitted by fecal contamination,
Taeniasis is transmitted by infested meats
Being a vegetarian can influence the individual risk of acquiring
taeniasis but hardly cysticercosis (although I would expect that taeniasis,
the remote origin of fecal contamination, is less prevalent in vegetarian
Omar O. Barriga