Which of the following Coronavirus Vaccine has become the first vaccine to show a positive response against COVID-19?

Moderna Coronavirus Vaccine has become the first vaccine to show a positive response against COVID-19. The 'mRNA-1273' vaccine has shown positive results by generating an immune response against SARS-CoV-2. The mentioned vaccine has been developed by the US-based biotechnology firm Moderna Inc in collaboration with the National Institutes of Health.