Transfer Factor

A transfer factor is a chemical that is taken from a human or animal that has already developed protection (immunity) against a certain disease. So far, transfer factors for various diseases have been produced only in laboratories for experimental use. Researchers claim that transfer factors can pass along immunity to people who need it. Transfer factors are given as shots or taken by mouth.

Transfer factors are most commonly used for infections, often in people with weak immune systems. Transfer factors are also used for other conditions including various cancers, Crohn disease, chronic fatigue syndrome (CFS), and other conditions, but there is no good scientific evidence to support any of these uses.

Transfer factor might boost immunity to specific diseases.

When taken by mouth: Transfer factors that have been taken from humans or cows are POSSIBLY SAFE in adults. They can cause fever in some people. There is some concern about the possibility of catching "mad cow disease" (bovine spongiform encephalitis, BSE) or other diseases from products that come from animals. "Mad cow disease" has not been transmitted by transfer factor, but it is probably wise to avoid animal products from countries where mad cow disease has been found.

When given as a shot into the muscle or under the skin: Transfer factors that have been taken from humans or cows are POSSIBLY SAFE when given as a shot to adults. They might cause fever in some people. They may also cause swelling and pain where the injection is given. There is some concern about the possibility of catching "mad cow disease" (bovine spongiform encephalitis, BSE) or other diseases from products that come from animals. "Mad cow disease" has not been transmitted by transfer factor, but it is probably wise to avoid animal products from countries where mad cow disease has been found.

Special Precautions & Warnings:

The following doses have been studied in scientific research:

ADULTS

AS A SHOT UNDER THE SKIN:

• For shingles (herpes zoster): Transfer factor (from humans) has been given as an injection under the skin every day for 7 days.

• For shingles (herpes zoster): A single dose of transfer factor (from humans) that is specific for the varicella virus is given. The health provider giving the shot calculates the proper dose based on the child's weight.

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