We are hearing almost every day about the Covid-19 vaccines, and often, there are many talks about the cold chain logistics.  Rightly so, it will surely be one of the largest vaccine logistics we've ever seen.  So, every other month I am planning to share my insights and observation on Covid-19 vaccine logistics.  At this episode, I am kicking it off with some fundamentals of Covid-19 vaccine logistics that we should be aware of.