Vaccination

Ethics must not be ignored when testing COVID-19 vaccines

The grassroots organization 1Day Sooner has been asking people to indicate their willingness to volunteer for human challenge studies of COVID-19. Challenge studies, in which healthy people are intentionally exposed to infection, ...

Medical research

Japan okays research using human cells in animals

Japan has given the green light to a controversial research process involving implanting animals with human stem cells that could eventually help grow human organs for transplant inside animal hosts.

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