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Syphilis is a bacterial infection transmitted by sexual contact [2] and is believed to have infected 12 million people in 1999 with greater than 90% of cases in the developing world. [3] It affects between 700,000 and 1.6 million pregnancies a year, resulting in spontaneous abortions , stillbirths , and congenital syphilis . [ 4 ]
Early latent syphilis is defined by the World Health Organization as less than 2 years after original infection. [27] Early latent syphilis is infectious as up to 25% of people can develop a recurrent secondary infection (during which bacteria are actively replicating and are infectious). [27]
Number of people with disease Notes Herpes: 4,000,000,000 [3] It is estimated that more than two-thirds of the global population has herpes, though it mostly lies dormant. Human papillomavirus infection: 800,000,000 [4] Chlamydia: 450,000,000 [5] Hepatitis B: 356,000,000 [6] Preventable with the Hepatitis B vaccine: Gonorrhea: 50,000,000 [5]
Cases of syphilis have hit record high numbers following a five-year trend, the Centers for Disease Control and Prevention said. A report published Jan. 30 examined the total cases of three ...
Syphilis is typically spread through direct contact with a syphilis sore, known as a chancre, during vaginal, anal or oral sex. It can also be passed from a pregnant person to a child during birth.
It’s not common for people to develop tertiary syphilis, but this stage can be serious. It can affect the heart, blood vessels, brain and nervous system. It can even be deadly.
The history of syphilis has been well studied, but the exact origin of the disease remains unknown. [3] It appears to have originated in both Africa and America. [4] [5] As such, there are two primary hypotheses: one proposes that syphilis was carried to Europe from the Americas by the crew(s) of Christopher Columbus as a byproduct of the Columbian exchange, while the other proposes that ...
Man with syphilis in German East Africa, c. early 1900s. Syphilis, a sexually transmitted infection, is a major danger to public health, particularly in developing countries, including those in sub-Saharan Africa. The disease, whose origin is contested amongst researchers, arrived in Africa no later than the 16th century. Since then, it has ...