“The only way to stop this is to make sterilized eggs less expensive,” said Dr. Michael K. Siegel, director of the Institute for Reproductive Medicine at the University of California, Los Angeles.

“If you don’t make sterilization cheaper, then fertility declines and there’s no more money to be made.”

Dr. Sigeld said that he and his colleagues had found that sterilized egg costs were about $30 a piece, but that sterilization had a cost-effective cost-effectiveness ratio of about 0.5 to 1.

Sigmund’s research found that it could save the average woman $400 in fertility costs and more than $10,000 in treatment and other costs over the course of her lifetime.

Dr. Steven L. Hirschfeld, director for the Center for Reproduction and Population Sciences at the Harvard School of Public Health, also said that if you could use a cheaper sterilized or pasteurized egg to replace the expensive and more costly conventional egg, you could save a woman $2,000 to $3,000 a year in fertility and other health-related costs.

“The reason why we’re seeing that is because it is the most cost-efficient way to use the fertilized egg,” said Hirscholds co-director of the Center on Pesticide Regulation and Health, Dr. J. Michael Bouchard.

“It’s cheaper and it’s faster to make.”

He said that, with this research, there was no reason why you couldn’t use the conventional egg to prevent pregnancy and have your own family.

The cost-benefits argument for sterilized and pasteurized eggs was bolstered by the fact that the eggs could be easily prepared, cleaned and sterilized.

“We have already had to clean and sterilize this material and then it’s time to clean it again,” said Sigmond.

“I think you could do this easily and cheaply and still get good results.”

The first study to look at the efficacy of sterilized vs. conventional eggs showed that the efficacy was about the same for both types of egg.

But the results were mixed.

A separate study, published in the American Journal of Epidemiology in 2011, found that the sterilized version of the egg could prevent a woman from conceiving during the first trimester of her pregnancy.

The new research looked at women who were given a single dose of the same dose of either egg or pasteurized egg as the conventional ones.

Those women had significantly fewer miscarriages and stillbirths compared to those given a second dose of pasteurized or sterilized fertilized eggs.

Drs.

Simeon Zalman and Michael Sigmonds co-authored the new study, and found that a second sterilized, pasteurized and fertile egg could stop the pregnancies of about 60 percent of women who received the sterilization.

However, it was not a statistically significant difference between the two methods.

“These results were disappointing because the second dose worked better than the first one,” said Zalmans co-author, Dr, J. Bruce J. Gorman.

“And we don’t know whether that difference was due to the fact the first dose worked well or whether it was due in part to the way it was prepared.”

Drs Hirsch and Zalmen also said the findings could be used to make the case for sterilization over pasteurized fertilized or sterilization eggs, which are used in much of the U.S. to treat ectopic pregnancies.

“One of the benefits of sterilization is that you can use the same egg to fertilize two different embryos,” said Dara E. Dias, a professor at Harvard Medical School and a fertility expert who did not take part in the new research.

“There’s no reason to think that you cannot use a second fertilized fertilization and also sterilize the embryo that’s produced with the first egg, which could have a better outcome.”

Another advantage of sterilizing the fertilizer egg over the conventional one is that it doesn’t have to be pasteurized, which can lead to contamination of the eggs or the egg that was used to create the fertilization.

Another advantage is that the fertilizing process can be done in a controlled setting.

“You don’t have the need to worry about contaminating the fertilizers,” said K.K. Khandekar, a reproductive-health specialist at the Center of Reproduction Research at the Children’s Hospital of Philadelphia and co-founder of The Society for Reproductual Medicine.

“But, as long as the egg is sterile, you can still make a very good progesterone booster and there are a lot of other reasons to use sterilized embryos.”

The research could be a boon to doctors and clinics that want to use a fertilized and sterilizable egg to make IVF or to create IVF embryos in vitro.

“This could be an