I went for a flu vaccine at CVS this week and the person giving it to me explained the process would be a bit different because they were using much larger need

I went for a flu vaccine at CVS this week and the person giving it to me explained the process would be a bit different because they were using much larger needles than usual. I asked why and they said it was due to supply chain issues. While it effectively didn’t change much for me, it also was easy to see that with a bit more pressure, some pretty critical supplies could simply not be available in sufficient quantities.