The Pfizer vaccine for coronavirus, which has shown 95% efficacy, is now the world's first coronavirus vaccine to get emergency use authorization in the UK. Priced at around $20 per dose, it needs a cold storage chain of -70 degrees, making it a distant possibility for India. What does this news mean for India? What is the UK's vaccine plan and will a similar plan be implemented in India? In the second part of everything you need to know about vaccines, we process and simplify humanity's first win over the virus.