As i watched what kate does tonight, I noticed numerous similarities between the traps set by claire in the jungle to the ones set by rousseau in the first season. To me they both seem to be in similar situations in their early time on the island(both arrived on the island pregnant, gave birth on the island, then lost their baby). I figure that Claire took over where Rousseau had been hiding for those sixteen years she spent on the island and continued to plant the traps that Rousseau set. The real question for me is, 1. what the hell has she been doing the past 3 years? and 2. Is she really "infected" or is Dogen saying that to convince Jack that Sayid must die?