What is the concern with the combo vaxes?

[WhiteHorse]

Ok, I am planning on catching up my almost 4 yo. There are some combo shots that would make this easier (fewer injections). Dr Sears website mentions there might be reasons to not use these newer combos, but I dont have his book. Anyone know why he doesn't recommend the combos? btw, I did read the ingredient lists for all these and didnt see anything different...??

[lifeguard]

For us; the concern is if ds reacts to a combo vaccine you don't know which vaccine he is reacting to. I try to keep it to one vaccine at a time if at all possible - even if that means going in more often. I'm sure others have other feedback on this issue.

[WhiteHorse]

Hmmmm, well, I suppose he could have a reaction to something but so far, my son has had everything at least once (as a baby) except the MMR and Varicella.

The other thing is our insurance does not cover "nurse visits" the same as a well baby visit. There is no way we could afford to do these shots paying out of pocket, we already have a heap of health debt piling to the sky.