Right now we are in a series of crises, or rather lunging from one crisis to another, to put it more appropriately. Biggest challenge before the humanity right now is the lack of vaccines and vaccine equity in the world. All of us are vaccinated and boosted but one-third of humanity is yet to take the first shot. Majority of the countries in Africa (and some in Asia too viz. Afghanistan) have less than 10% full vaccination rates. Countries like Burundi, Chad and DRC etc. have less than 1% full vaccination rates.