| increased host species diversity and decreased prevalence of sin nombre virus. | emerging outbreaks of zoonotic diseases are affecting humans at an alarming rate. until the ecological factors associated with zoonoses are better understood, disease emergence will continue. for lyme disease, disease suppression has been demonstrated by a dilution effect, whereby increasing species diversity decreases disease prevalence in host populations. to test the dilution effect in another disease, we examined 17 ecological variables associated with prevalence of the directly transmitted ... | 2009 | 19624913 |