Semen Can Carry More Deadly Diseases Than We Thought

Studies have long established the sexual transmissibility of many viruses via semen, but new research shows troubling evidence that these diseases go far beyond the to-be-expected sexually transmitted infections. 

The study, published Dec. 10 in The Lancet Microbe journal, analyzed data from hundreds of studies and narrowed the findings down to 22 viruses capable of living in human semen after infection. Of these, nine showed evidence of sexual transmission. This builds upon more recent...