How can we even know if this is true, and not fear-mongering?
As always, the answer is "we can't know for sure".
But we can prepare.
Survivalists have a saying -- "better a year early than a day late". And how true is that saying!
Your extra medical supplies, canned goods, water, etc. can sit there a few months or years -- but you can't buy them ONE DAY LATE because they won't be there for the having -- everyone will want them then. Demand will overwhelm our fragile supply lines.
Matthew