An Oxford University team working on a vaccine against COVID-19, the disease caused by the novel coronavirus, now believes that there’s only a 50 percent chance they’ll be successful, The Telegraph reports. The problem is that the disease seems to be disappearing faster than the team can find test subjects for their vaccine.
Professor Adrian Hill is leading the team that, since January, has been trying to develop a vaccine that would immunize the recipient against SARS-CoV-2, the official name of the virus that’s causing a global pandemic.
Hill’s team had been hopeful that the ZD1222 vaccine could be available for wide distribution by September. However, now they’re up against a problem that they likely didn’t consider: the disease seems to be disappearing on its own. That means that there may be fewer people who can be test subjects when the vaccine is deployed for human trials.
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