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81 Percent of Clinical Trial Volunteers Suffer Reactions to CanSino Biologics’ COVID-19 Vaccine That Uses HEK293 Human Fetal Cell Lines

An experimental vaccine for COVID-19 is being developed by CanSino Biologics, Inc. of Tianjin, China, in partnership with China’s Academy of Military Medical Sciences’ Institute of Biotechnology. A Phase 1 human clinical trial of the COVID-19 vaccine (adenovirus type-5 Ad5-nCoV) has been completed in China involving 108 volunteers, ranging in age from 45–60 years old. In that trial, 87 (81 percent) of the 108 participants suffered at least one adverse reaction within seven days after vaccination. Of these, 30 of the human subjects were in the low dose group, 30 were in the middle dose group, and 27 were in the high dose group. Overall, 10 of the participants experienced Grade 3 adverse reactions. Of the 36 participants in the high dose group, six of them had Grade 3 adverse reactions. Read more...
 

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