Nieuwenburg SA, Zondag HCA, Bruisten SM, Jongen VW, et al. Detection of Treponema pallidum DNA during early syphilis stages in peripheral
blood, oropharynx, ano-rectum and urine as a proxy for transmissibility. Clin Infect Dis 2022 Jan 25. pii: 6515376. doi: 10.1093.
PMID: 35079776