“These infections can cause severe complications, such as chronic pain and infertility and, in the case of syphilis, problems with the heart or nervous system,” said Bruno Ciancio, the head of the agency’s Directly Transmitted and Vaccine-Preventable Diseases unit.
Source: https://www.bbc.com/news/articles/cm2pj07dr7lo?at_medium=RSS&at_campaign=rss