METHODS TO PREVENT VERTICAL TRANSMISSION OF INFECTIOUS DISEASES
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United States of America Patent
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Issued Date -
Oct 30, 2008
app pub date -
Oct 23, 2007
filing date -
Apr 27, 2007
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Abstract
The present invention presents a method of preventing vertical transmission of an infectious disease comprising: (a) applying a photosensitizing composition to host tissues of birth canal of a mother during the intrapartum period; and (b) applying light to the host tissues after the step (a) at a wavelength absorbed by the photosensitizing composition so as to inhibit or eliminate infectious disease microorganisms that come into contact with the host tissues. The infectious disease may be caused by human immunodeficiency virus type 1, hepatitis B virus, hepatitis C virus, Group B Streptococcus, cytomegalovirus, Listeria monocytogenes, Chiamydia trachomatis, Escherichia coli, herpes simplex virus, Epstein-Barr virus, Toxoplasma gondii, human papilloma virus, and Candida.
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