Rigvir is a “virotherapy” from Latvia promoted by the International Virotherapy Center and, increasingly, by alternative cancer clinics. There is no convincing scientific evidence for its efficacy. That didn’t stop its advocates from presenting a case report. Not surprisingly, the case report isn’t convincing either.
![Rigvir virotherapy](https://i0.wp.com/www.respectfulinsolence.com/wp-content/uploads/2017/09/rigvir-cancer-killing-virus.jpg?fit=1200%2C675&ssl=1)