Really.  A doctor said that.  An obstetrician, in a
presentation entitled href="http://www.abstinence.net/pdf/contentmgmt/EricKeroackPresentation2003.pdf">The
Neuroendocrine and Biochemical Basics of Human Sexuality: The Results
of Non-Marital Sexual Activity. [Note: the link
goes to a 7MB PDF.]

The author, Eric J. Keroack, M.D., F.A.C.O.G., gave the presentation on
June 27, 2003, for the National Abstinence Clearinghouse 2003
Conference.

He’s in the news, as described by href="http://www.upi.com/HealthBusiness/view.php?StoryID=20061117-074039-9953r">UPI:

…the Bush Administration came under fire for
appointing Eric Keroack to head the federal Office of Population
Affairs, which oversees the government’s reproductive health efforts
and has a budget of $283 million. Keroack, an obstetrician and
gynecologist, was previously medical director of a Boston group that
opposes premarital sex, abortion and contraception.

Bush has called the appointment a matter of “principles” and stressed
Keroack’s experience dealing with women and girls in crisis, but
opponents of the appointment say it is putting ideology before science
– and women’s health…

I won’t belabor the point; href="http://scienceblogs.com/aetiology/2006/11/the_war_on_womens_health_conti.php">Tara
and href="http://scienceblogs.com/pharyngula/2006/11/bad_science_its_okjust_put_him.php">PZ
are all over it, as is the rest of the reality-based Blogosphere.
 ( href="http://nooneshome.blogspot.com/2006/11/very-reassuring.html">1
href="http://blondesense.blogspot.com/2006/11/fox-meet-henhouse.html">2
href="http://digbysblog.blogspot.com/2006_11_01_digbysblog_archive.html#116380122527513480">3
href="http://alterdestiny.blogspot.com/2006/11/calling-margaret-sanger-could-margaret.html">4
href="http://melancholicfeminista.blogspot.com/2006/11/bush-appoints-abstinence-jack-ass-to.html">5
6
href="http://pacetua.blogspot.com/2006/11/there-they-go-again.html">7
href="http://akzidenzgrotes.vox.com/library/post/antibirth-control-crusader-as-national-family-planning-chief.html">8
href="http://skimble.blogspot.com/2006/11/poor-people-stop-fucking.html">9
href="http://www.tracyrusso.com/blog/2006/11/lets_talk_about_sex.html">10…there
are many more, but you get the point)

Opponents of abstinence-only programs often point out the lack of
scientific justification for the programs.  Keroack counters
by spouting nonsense that sounds scientific.
 But germ warfare?  That’s just plain idiotic.