I have often told people that they should try to figure out how to stock up on life-saving prescriptions because of supply chain problems that would result during a pandemic. About 80% of the pharmaceuticals in the US are manufactured overseas, first in China as raw ingredients, from where they are shipped to India for final manufacturing. A large portion is shipped into the US in the cargo holds of passenger flights.
Think about all of the pieces of that process that could break down. We have already seen massive amounts of flights cancelled or grounded both domestically and internationally. What do you think governments will do with raw products when they think they may need them in their own countries?
Once again though, you don’t have to take my word for it. The Center for Infectious Disease Research and Policy at the University of Minnesota has also addressed this problem.