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At that time, McLellan's lab was working with Barney Graham, deputy director at the National Institutes of Health's Vaccine Research Center, to develop vaccines targeting emerging coronaviruses, including SARS and MERS. To achieve that, first they had to find a way to stabilize the virus' shape-shifting spike protein.

At the end of last year, 40 cities had urban rail transit systems in operation, with a total length of 6,730.27 km.

At the CIIE, a ping-pong robot training system -- one of the achievements from the R&D collaboration, involving a robot to serve the ball, a vision system and intelligent training -- was exhibited.

At the quota application stage, applicant companies and institutes must show to the Innovation & Technology Commission of Hong Kong that the talent sought is in short supply in Hong Kong.

At this point, Code Fellows operates just in Seattle, though Smith hinted that new cities would be coming online as part of her job.