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AstraZeneca

AZD1222 is an investigational vaccine being developed by AstraZeneca to prevent COVID-19, the disease caused by the SARS-CoV-2 virus.

The vaccine is based on a weakened version of a common cold (adenovirus) virus. The adenovirus vaccine has been changed so that it can’t replicate inside your body. It presents part of the COVID-19 spike protein to the body so that an immune response can be made to it. The purpose of the study is to test how well the investigational vaccine works at preventing COVID-19 disease and how safe it is.

Janssen Ensemble

​The Ad26.COV2.S investigational vaccine is being developed to prevent or lessen the severity of COVID-19, the disease caused by Severe Acute Respiratory Syndrome Coronavirus-2 (SARS-CoV-2). The Ad26.COV2.S investigational vaccine includes bits of genetic material copied from the spikes of the SARS-CoV-2 virus. The goal is for the body to be immunized against COVID-19. The investigational vaccine does not contain the actual virus and cannot cause COVID-19. The ENSEMBLE study aims to test Janssen’s investigational vaccine in many different populations across the globe.

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