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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 ]
Syphilis rates are at the highest since the 1950s. Public health officials are trying to bring levels down by making testing and treatments more available.
The trend puts “real lives at stake,” with cases having risen 80% since 2018, experts say.
The most infectious stages of syphilis, known as primary and secondary syphilis, decreased 10.7% in 2023, marking the first substantial decrease since 2001, the report said.
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]
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]
South Dakota outpaced any other state for the highest rate of infectious syphilis at 84 cases per 100,000 people — more than twice as high as the state with the second-highest rate, New Mexico.
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 ...
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