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AstraZeneca says it may consider exposing vaccine trial participants to virus

The chief executive of AstraZeneca, which is developing a leading coronavirus vaccine with Oxford University, said it is too early to deliberately expose trial participants to the pathogen, but it may become an option if ongoing tests hit a snag.

The British drugmaker last week started phase 2 and 3 trials of the vaccine, looking to recruit around 10,000 adults and children in Britain.

A certain number of participants will have to become infected in the course of their normal lives to achieve a reliable reading from the study over the next few months.

So-called human challenge trials have been discussed as an alternative option by scientists, whereby vaccinated volunteers are infected intentionally.

“We are running against time. We are seeing already in Europe the disease is declining,” Soriot told an online press briefing. “Very soon the disease intensity will be low, and it will become difficult, so we have to move very quickly.”

“If the disease gets to a very low level, maybe challenge studies will have to be considered. But we felt it’s too early today to do that,” he added.

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Meeta Ramnani
Meeta Ramnani
Meeta develops credible content about various markets based on deep research, opinions from experts and inputs from industry leaders. As the managing editor at Smart Industry News, she assures that every piece of news and article adds to the knowledge of decision makers. An avid bike rider, Meeta, is a postgraduate from Indian Institute of Journalism and New Media (IIJNM) Bangalore, where her specialization was Business Journalism. She carries experience from mainstream print media including The Times Group and Sakal Media Group.
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