'It's so exciting to wake up to good news': Vaccine trial volunteer on potential coronavirus breakthrough

When Jennifer Haller started trial number of global deaths stood at just 9,000 she tells Andrew Buncombe

Jennifer Haller was first American to receive shot of potential Covid-19 vaccine (AP)

Jennifer Haller was at home when she learned the news.

Trials of a possible Covid-19 vaccine in which she was taking part had been shown to boost the “immune response” of participants. What’s more, the lower doses of the drug appeared to be as effective as the high dose being trialled.

“Man! I mean, that’s really so exciting,” she tells The Independent of her reaction of seeing the news. “I think 10 days ago they got approval to move on to the phase two trial, which was great news. But this is solid clear evidence they’re seeing the immunity they were looking for in this trial. It’s super, super exciting.”