Share this Post: If the various billboards and pamphlets declaring "Syphilis is on the rise" aren't enough to convince the average Seattleite of the growing concern over sexually transmitted infections (STIs), data from the World Health Organization's latest STI study might. Despite efforts to curb adult syphilis infections (from 7.1 million to 0.71 million by 2030), new cases among people aged 15-49 have increased by over one million, with an estimated global total of eight million positive...