Effort is going to go to diseases that they reckon have a high probability of success with just by presenting specific antigens. Herpes has had vaccine candidat

Effort is going to go to diseases that they reckon have a high probability of success with just by presenting specific antigens. Herpes has had vaccine candidates in clinical trials that failed, chewing through hundreds of millions of dollars along the way. Difficult disease because of the way the virus goes dormant inside of nerve cells, and trials would be expensive and take a very long time because exposure is slow and generally takes years.