New Delhi, Nov. 28 -- A major challenge in transporting Covid-19 vaccines is the ultra-cold temperatures required for the purpose. Except for the vaccine being developed by Oxford University-AstraZeneca, which can be stored in normal household refrigerators with a temperature range of 2 degrees to 8 degrees Celsius, all the others - Pfizer-BioNTech, Sputnik-V and Moderna - require a temperature of anywhere between minus 18 degrees to minus 90 degrees Celsius.
It turns out, India does have a limited cold chain capability to offer ultra-low cold temperatures, thanks to the infrastructure in place to transport the semen of bulls used for artificial insemination of cows across the country. For the record, the semen collected from bulls is tran...