It has been announced today that the covid-19 vaccine being developed by Pfizer and BioNTech has been found to be 90% effective in preventing the disease, without presenting any safety concerns in the first interim analysis from its Phase 3 clinical study. This puts it at the head of the pack of candidate vaccines in the race to achieve regulatory approval. But there are major IP obstacles for any organisation seeking to produce a copycat version; while Pfizer/BioNTech themselves are embroiled in a patent dispute over the vaccine. Read more.