The vaccine can only reduce symptoms, and might not work for everyone or for long, the UK scholar stated.

The chair of the United Kingdom's vaccine taskforce has warned that the first generation of anti-Wuhan virus vaccines are “likely to be imperfect” if a successful vaccine is developed at all.

Writing in The Lancet, Dr. Kate Bingham, who heads efforts to find and manufacture a vaccine for Wuhan virus, cautioned against “complacency and over-optimism” about the process.

The first generation of vaccines is likely to be imperfect, and we should be prepared that they might not prevent infection but rather reduce symptoms, and, even then, might not work for everyone or for long, she explained.