 very effective in preventing the clinical manifestations, preventing that disease. So, you know, with those opportunities, I think we're going to make progress. Great. There's one more thing I'd like to mention, if you don't mind, is that we have been having a shortage of the treatment of choice for syphilis, which is penicillin, particularly Bicillin LA, or long-acting. Now, that is produced in the United States by Pfizer,