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Risks of transmissible diseases in relation to embryo transfer
B Le Tallec1, C Ponsart, B Marquant-Le Guienne
1Laboratoire National de Contrĵle des Reproducteurs, Maisons-Alfort, France. b.letallec@Incr.org
Reproduction, Nutrition, Development
|May 8, 2002
Summary
Embryo transfer (ET) is a safe method for genetic dissemination when disease prevention measures are followed. This study evaluates risks during embryo production, storage, and transfer to ensure safe gene transfer.
Area of Science:
- Veterinary Medicine
- Reproductive Biology
- Animal Genetics
Background:
- Embryo transfer (ET) facilitates rapid genetic material dissemination.
- Disease transmission via embryos is a significant concern.
- Risks vary between in vivo and in vitro embryo production.
Purpose of the Study:
- To evaluate disease transmission risks associated with embryo transfer (ET) at all stages.
- To assess risks specific to in vivo and in vitro derived embryos.
- To identify critical control points for pathogen transmission during ET.
Main Methods:
- Review of potential pathogen sources (donor male/female, environment).
- Separate risk assessment for in vivo and in vitro produced embryos.
- Analysis of disease agents and transmission pathways.
Main Results:
- Pathogen agents can originate from donors (semen, oocytes, embryos) or the environment.
- In vivo and in vitro embryo production present distinct risk profiles.
- Properly handled ET, with prevention measures, is a safe gene transfer method.
Conclusions:
- Embryo transfer (ET) is a highly safe method for genetic material dissemination.
- Prevention measures (SPF donors, embryo washing) are crucial for mitigating disease risks.
- ET can effectively prevent transmission of specific diseases like TSEs and foot-and-mouth disease.