 Poly-MVA is promoted with claims that it can treat a variety of human diseases including cancer and HIV/AIDS.The promotional effort is supported by customer testimonials, but there is no medical evidence that Poly-MVA confers any health benefit and some concern it may inhibit the effectiveness of mainstream cancer treatments if used at the same time.In 2005, Poly-MVA was listed as one of the ineffective alternative cancer treatments being sold by the clinics clustered in and around Tijuana, Mexico.