If the vaccines pass these tests then safety trials in humans would be the next step. (sciencemediacentre.org)
Human safety trials for a vaccine to jump - start immunity could begin later this year; larger efficacy trials may be a year and a half away. (sciencenews.org)
A widely hailed new drug for melanoma, which was tested in combination with another drug to boost its tumor - fighting power, has done well in a key safety trial. (sciencemag.org)