Four years have passed since that unforgettable year of 2020 , a year that will forever remain etched in human history. It was the beginning of the Covid-19 pandemic, the virus that upended the lives of 8 billion people, suddenly forced to hole up in their homes to thwart that invisible enemy against which, at least initially, they lacked adequate tools.
First discovered in late 2019 in the Chinese city of Wuhan , the SARS-CoV-2 virus spread rapidly across the world, leading to an unprecedented health crisis. The COVID-19 pandemic has been one of the largest health and social events in recent history, with global repercussions.
However, the pandemic has also led to an extraordinary response from the scientific and medical community, with the development of vaccines in record time and the coordination of international efforts to defeat the virus . Vaccine distribution and implementation have become a global priority, with the goal of ending the pandemic.
