NEW YORK (Reuters Health) - Researchers from the Centers for Disease Control and Prevention describe the case of a woman who developed a genital infection after having sexual contact with a military serviceman who had been recently vaccinated against smallpox.The infection was from the vaccinia virus, the type of virus contained in the smallpox vaccine. Vaccinia is closely related but less virulent than the smallpox virus, variola, and usually results in just a localized infection.>>> Discuss This Story