Covid-19 Candidate Vaccines Pass Safety and Efficacy Tests0

• Covid-19, Health & Medicine
• July 23, 2020

Two candidate vaccines (ChAdOx1 and Ad-5-nCoV) for Covid-19 have been shown to be safe and efficacious in humans, according to two studies published this week in The Lancet journal. Both vaccines are based on adenovirus vectors, DNA viruses that act as vehicles to carry SARS-CoV-2 proteins to the body, therefore eliciting a response against an