Wu Guizhen, chief expert of biosecurity at Chinese Center for Disease Control and Prevention, said the development of the vaccine started on January 7 upon the isolation of the novel coronavirus from samples for the first time, and the trials began on April 27 after finishing a series of preclinical studies and being approved by the National Medical Products Administration. "In view of the public health emergency due to COVID-19 pandemic and urgency to launch the vaccine, you are strictly advised to fast track all approvals related to the initiation of the clinical trial and ensure that the subject enrollment is initiated no later than 7th July 2020", the letter added.
Researchers say the immune response to the vaccine looks good, but can not give a timeframe as to when it may be ready.
The late-stage trial, to test Moderna's vaccine candidate in 30,000 volunteers, was expected to start next week, but there is no clarity on how long the delay will last, the report https://www.statnews.com/2020/07/02/trial-of-moderna-covid-19-vaccine-delayed-investigators-say-but-july-start-still-possible said.
Sarah Gilbert, professor of vaccinology at the University of Oxford, is leading the vaccine trial being run by researchers there.
Sir John Bell, Regius professor of medicine at the University of Oxford, said that it should not be assumed that there will be one.
Texas and Florida Restrict Businesses as States' Coronavirus Cases Continue Rising
Jay Inslee declared Saturday he is hitting the pause button on the state's reopening approach thanks to soaring instances. The state's neighborhood transmission, he explained, is "becoming driven by that 18 to 35-12 months-previous team".
"This whole epidemic has relied too heavily on assumptions that have turned out not to be true", he said.
US National Institutes of Health Director, Dr Francis Collins, said earlier on Thursday that he was optimistic the Trump administration's vaccine-acceleration program "Operation Warp Speed" will generate a safe and effective vaccine for COVID-19 by year-end and can meet a target of making 300 million doses by early 2021.
"So my strong advice is to be prepared for the worst".
She said that the vaccine, when it will come into existence, will be used to support the vulnerable, "most of us don't need to worry about coronavirus", she said.