Any resources about the likely hood of tetanus from a second degree burn?
That is one of the VERY few instances where Tetanus would be a concern with me. Any injury that involves dead skin (burn, crush) etc. is more likely to allow a tetanus infestation,
You still have the fact that tetanus toxoid is useless after an injury. If it was a situation where it was actually a concern for me, I would be considering TiG.
More information? A "clean" burn from a stove top or candle etc represents a much lower risk of tetanus than a "dirty" one from, say a campfire or branding iron.
ETA - also, how was it treated initially?
Mother of two spectacular girls, born mid-2010 and late 2012