As researchers race to develop a vaccine for COVID-19, the potential for the coronavirus to perpetually rebound has ramped up the urgency in finding a worldwide cure.
New cases of the disease have emerged in Wuhan, Singapore and Hong Kong in the past week, after governments lifted some of their social distancing controls.
After initial success at containing the disease, Singapore clamped new restrictions this week on schools and nonessential businesses. Hong Kong also experienced a rebound after it relaxed controls, while the United States and Europe remain in earlier phases of the fight and have restrictions still in place. Wuhan has a new cluster of the cases, as well.
How a vaccine or a number of vaccines will be used is not yet clear, Arthur said. It could follow the practice of an Ebola vaccine, which is held in reserve in case of an outbreak but not administered widely. Or it could be like the measles vaccine, which is given to everybody. To do so, scientists built a virtual 3D model of a virus and started examining how a molecule could bind onto the virus, a modeling job that requires computational power that has come online only in recent years, said Rakstraw, the Livermore scientist. Just one measure of that challenge is the amount of electrical power needed: the lab recently spent $150 million for additional high voltage electrical lines to operate its banks of supercomputers.
Among the big actors in the private sector, Johnson & Johnson announced that it has identified a lead vaccine candidate and pledged $1 billion in funding in collaboration with the Biomedical Advanced Research and Development Authority to test and possibly manufacture the drug.
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