Long search for vaccine and why you must be more vigilant

After coronavirus broke out in Wuhan, China, in December 2019, within a few months, the new virus had spread to almost all continents across the world. And when on January 30, following the recommendations of the World Health Organisation (WHO) Covid-19 was declared a Public Health Emergency of International Concern (PHEIC), the world was plunged into a desperate search for a vaccine against the virus.

So far, the virus has infected more than 11.9 million and killed more than 545,000 people worldwide.