New AstraZeneca Vaccine in Development to Fight South African Variant

The video discusses concerns about the effectiveness of vaccines against new virus strains, particularly the South African variant. It highlights the challenges in vaccine development, emphasizing the need for continuous research and adaptation. The global rollout of vaccines is underway, but there is uncertainty about their efficacy on emerging strains. Additionally, an investigation into the virus's origins in Wuhan is yielding significant findings, which may help prevent future outbreaks.

What is the significance of the South African strain of the virus in relation to vaccine efficacy?

What role do mutations in the spike protein of the virus play in vaccine effectiveness?