Journal
TRENDS IN PARASITOLOGY
Volume 37, Issue 2, Pages 117-129Publisher
CELL PRESS
DOI: 10.1016/j.pt.2020.10.012
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Funding
- NSF [BII 2021909]
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Studies indicate that fast-lived mammal species tend to host more zoonoses, but the reasons for this association are not clear. It is necessary to link interspecific variation in life history with immunity, pathogen diversity, and other factors to better predict potential zoonotic reservoirs.
Because most emerging human pathogens originate in mammals, many studies aim to identify host traits that determine the risk of sourcing zoonotic outbreaks. Studies regularly assert that 'fast-lived' mammal species exhibiting greater fecundity and shorter lifespans tend to host more zoonoses; however, the causes of this association remain poorly understood and they cover a range of immune and nonimmune mechanisms. We discuss these drivers in the context of evolutionary ecology and wildlife-human interactions. Ultimately, differentiating these mechanisms will require linking interspecific variation in life history with immunity, pathogen diversity, transmissibility, and zoonotic risk, and critical data gaps currently limit our ability to do so. We highlight sampling and analytical frameworks to address this gap and to better inform zoonotic reservoir prediction.
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