Remember Me
Or use your Academic/Social account:


Or use your Academic/Social account:


You have just completed your registration at OpenAire.

Before you can login to the site, you will need to activate your account. An e-mail will be sent to you with the proper instructions.


Please note that this site is currently undergoing Beta testing.
Any new content you create is not guaranteed to be present to the final version of the site upon release.

Thank you for your patience,
OpenAire Dev Team.

Close This Message


Verify Password:
Verify E-mail:
*All Fields Are Required.
Please Verify You Are Human:
fbtwitterlinkedinvimeoflicker grey 14rssslideshare1
Thomasson, D
Languages: English
Types: Doctoral thesis

Classified by OpenAIRE into

mesheuropmc: parasitic diseases
Toxoplasma gondii is a pathogenic Apicomplexan parasite with a worldwide \ud distribution in almost all warm blooded animals. The parasite is transmitted to hosts in \ud three ways; via oocysts that are passed from the definitive host the cat; by the \ud ingestion of tissue cysts by carnivory and by congenital transmission. The first two \ud routes being thought to be the most important modes of transmission. Mice are \ud thought to be primarily infected by the ingestion of oocysts in the environment while \ud the consumption of infected meat is thought to be the major source of human infection. \ud Recent data suggests, however, that vertical transmission may be important in both of \ud these species. This investigation uses PCR to address this issue. \ud Apodemus sylvaticus collected over a period of seven years from a rural area of \ud Yorkshire were tested by PCR and a prevalence of 46% was found in this population. \ud As there are few cats in this area, oocysts are not thought to be the source of infection. \ud A natural population of Mus domesticus captured by a pesticide company and housed \ud in a closed colony since 1991 were found to have alOO% prevalence of Toxoplasma \ud and all animals were infected with the same strain type, Type 1. These studies suggest \ud that congenital transmission may be occurring at high frequency.Congenital transmission in humans in the U.K. is thought to be rare. To determine if \ud congenital transmission occurs in normal healthy newborn babies we set up an \ud ethically robust protocol to collect umbilical cords from babies born in a hospital in \ud the U.K. Preliminary results show that T. gondii was detected in 65% of the cords and \ud all three different strain types were found. In conclusion congenital transmission may \ud occur much more frequently than previously thought in natural populations of animals \ud and humans.
  • No references.
  • No related research data.
  • No similar publications.

Share - Bookmark

Cite this article