But just sounds a bit amateurish. To make sure there is let's say 10 cc in vial they put 12 in. Which I, d guess is about the volume but whether it is or not they were planning on wasting 20%???
They don't even do that with smarties..
I have spoken to family members about this very thing about a week ago. I was under the assumption that giving injections would be fairly straight forward here are a couple of things they told me.
1. For many health staff even the ones that administer the flu injection, having to draw up the vaccine from a vile is now fairly rare. The flu injections for example are usually already filled into the injection, so all the staff have to do is unpack and use.
2. Drawing vaccine from a vile can be quite tricky, not only does one have to draw the correct amount one has to ensure no air has entered the liquid. Manufacturers realise this and so will usually include slightly more liquid than the vile is meant to provide. So for example a vile made to provide 5 injections will often have enough for 6 or 6.5 for example, the reason being some liquid may be wasted getting rid of air from the injection of the first 5.
Like anything the more one does of something the better one gets at it, but I imagine it takes a dozen or so injections before each health person has it down pat.