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Kaplan–Meier plot showing snail survival (proportion of snails alive every 2 weeks) over the 12‐week period following shell manipulation (three treatments: undrilled, patched, or drilled) for uninfected individuals, snails harboring a single infection (Philophthalmus sp. or Maritrema novaezealandense), and individuals infected by both parasite species (double infection [Philophthalmus sp. and M. novaezealandense])
