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Dor Yeshorim Institute

Dor Yeshorim Institute

Dor Yeshorim is an organization founded to prevent recessive genetic diseases. It is based out of New York and was founded by in the early 1980's by Rabbi Josef Ekstein, who had four of his own children die of Tay-Sachs disease. It is endorsed by many physicians and several major Torah authorities, and is the most commonly used genetic screening program for Jewish diseases in the yeshivish world. (Indeed, it is not uncommon for Orthodox Jewish day schools to sponsor screenings for all their high school students). As of September 2006, over 800 incompatible matches had been prevented.

The Dor Yeshorim screening program is most effective with those of entirely Ashkenazic descent. Anyone with even a small heritage other than Ashkenanic descent (even one grandparent), may experience reduced reliability. (This may be of special concern to those with Sephardim or Geirim (Converts) in their background). This general background information is noted at the time of testing, to assist interpreting the results.

The program itself is designed to protect the privacy of the individuals involved, and and avoid the risk of stigmatizing a young single or their family members.

An article about Dor Yeshorim was published in the June 2006 issue of the Where • What • When magazine, entitled "An Avoidable Tragedy".

Here's how it works, in a nutshell:

Singles have blood taken and their samples labelled with an anonymous identification number, and a control number. These are sent to special labs in New York where they are tested and catalogued. In addition, a contact telephone number is sent along with the sample, and results will only be given via return call to the phone number submitted with the samples, at the time of testing. The singles are normally given a booklet when they are tested, with their identification and control number stickers affixed, as well as, other information about Dor Yeshorim included. The booklet also contains a place to record information, in case the booklet is lost. All results are identified anonymously by number, not by name. The results are kept confidential and will not be released to any individual, not even to the persons themselves. The only information typically released is the response regarding a particular shidduch's genetic compatibility: compatible or incompatible.


However, if a couple is found to be incompatible, and if they request this information, the couple will be informed of the disease for which they are incompatible, the symptoms, and the specific risks they face.

If an individual has a family history of a genetic disease, even a "non-Jewish" one, Dor Yeshorim recommends that they be informed of this, as well (for example, they might run additional tests, if aware of this risk). They can provide confidential counseling, referral, and support services to families afflicted with genetic disease.

Before a shidduch begins (or as early as possible), one or the other parties in the shidduch contacts Dor Yeshorim, and using both each person's anonymous identification number and the birthdate of each person, to check if the individuals together are genetically compatible (as noted above). The only information normally revealed is whether the specific couple are incompatible genetically with each other. However, if the couple requests, they will be informed of the disease for which they are incompatible, the symptoms, and the specific risks they face.

There are several rules specific to to Dor Yeshorim:

  • Individuals who are engaged, married, already tested, or otherwise aware of their carrier status are not eligible to participate in this program.
  • Results will only be left with the phone number registered at the time of testing. If your phone number changes, Dor Yeshorim needs to be notified as soon as possible.
  • If you lose your identification number, you will need be re-tested all over again. Since it is entirely anonymous, Dor Yeshorim cannot connect you with your test results, if you lose your identification number.

Currently, the Dor Yeshorim program generally tests for:

429 Wythe Avenue
Brooklyn, New York 11211

Phone: 718-384-6060

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