mRNA technology, which was used to develop the first covid-19 vaccines, may have a broader impact on the drug industry. A review has found covid-19 mRNA vaccines to be safe and effective, and an fda panel has considered or backed a first-of-its-kind flu vaccine using the same technology. The development and use of mRNA vaccines is a subject of ongoing research and explanation, with some outlets also exploring alternative technologies such as dna origami vaccines.