Trichinella chanchalensis

Malone, Cody J., Oksanen, Antti, Mukaratirwa, Samson, Sharma, Rajnish & Jenkins, Emily, 2024, From wildlife to humans: The global distribution of Trichinella species and genotypes in wildlife and wildlife-associated human trichinellosis, International Journal for Parasitology: Parasites and Wildlife 24, pp. 100934-100934 : 100934-

3.13.1. Trichinella chanchalensis in the Americas

The true geographic range of the T. chanchalensis is likely underestimated, as the current gold-standard for genotyping Trichinella spp . (multiplex PCR) cannot differentiate between T. nativa and T. chanchalensis which requires subsequent sequencing or PCR-RFLP ( Pozio and Zarlenga, 2019; Sharma et al., 2021). This is problematic as the two species occur in sympatry; thus, previous isolates genotyped as T. nativa by the multiplex PCR may actually be T. chanchalensis . Trichinella chanchalensis is the third freeze-tolerant species/genotype endemic in Canada, along with T. nativa and Trichinella T6 (Sharma et al., 2020). The infectivity of T. chanchalensis to domestic pigs and mice is currently unknown. To date, there have been no reports of human infections attributed to T. chanchalensis , but it is possible that human cases have previously been incorrectly genotyped as T. nativa ; thus the zoonotic potential of T. chanchalensis is currently unknown.