coronavirus pandemic, a new study says that private drugmakers have had more success than government-funded ones in coming up with cures and vaccines for infectious diseases in the last two decades.But investors prefer not to invest in companies that work on vaccines and treatments for infectious diseases as these are generally regarded as low-margin products, according to the study.A working paper by the National Bureau of Economic Research has studied 2,544 vaccine programmes and 6,829 non-vaccine programmes for such diseases in the 20-year period before the covid-19 outbreak.
The authors find that the overall success probability for industry-sponsored vaccines was 39.6%, but just 6.8% for non-industry efforts.For treatment drugs,.