Summary:
- The article discusses a study where scientists have created a mutated version of the H5N1 influenza virus that is more transmissible between mammals, raising concerns about the potential for a future pandemic.
- The researchers modified the H5N1 virus to make it more infectious in ferrets, which are considered a good model for how the virus would behave in humans.
- The study has sparked debate about the risks and benefits of this type of research, known as "gain-of-function" experiments, which aim to understand how viruses could potentially evolve to become more dangerous.