New Early Coronavirus Vaccine Results Show Promising Signs Of Immunity
Early results from separate British and Chinese candidate coronavirus vaccines reported on Monday showed promising signs of immunity and no serious side effects.
The early results from 1,077 volunteers in an Oxford University study and 508 adults in the CanSino Biologics study conducted in Wuhan, China, are encouraging as both studies move to widespread testing of the vaccines in tens of thousands of volunteers, said experts.
“Overall, the results of both trials are broadly similar and promising,” wrote Johns Hopkins Bloomberg School of Public Health vaccine experts Naor Bar-Zeev and William Moss, in a commentary accompanying the studies. “The safety signals from these two important trials are reassuring.”
The monthlong trials in healthy volunteers both produced “neutralizing” antibodies — in 90% of the Oxford participants and 85% of the Wuhan ones — seen as a marker of an effective vaccine. They also led to development of longer-lived T cells responding to the inoculations, a marker of a long-term immune system response to a virus.
“Both the Oxford and Beijing vaccines induce a high-frequency, antiviral, T cell response, which looks promising,” Imperial College professor of …continued .