COVID-19 vaccine
The Chinese company CanSino Biologics is making a viral vector vaccine. This vaccine uses an adenovirus that has the spike protein from SARS-CoV-2 on it. Then the immune system learns to recognize the spike protein.  As of July 2020, this vaccine is in phase II trials, but the Chinese government gave CanSino Biologics permission to give it to people anyway. They are allowed to give it to people in the Chinese military.