First report of the zoonotic nematode Baylisascaris procyonis in non-native raccoons (Procyon lotor) from Italy

Baylisascaris procyonis is a nematode parasite of the raccoon (Procyon lotor), and it can be responsible for a severe form of larva migrans in humans. This parasite has been reported from many countries all over the world, after translocation of its natural host outside its native geographic range, North America. In the period between January and August 2021, 21 raccoons were cage-trapped and euthanized in Tuscany (Central Italy), in the context of a plan aimed at eradicating a reproductive population of this non-native species. All the animals were submitted for necroscopic examination. Adult ascariids were found in the small intestine of seven raccoons (prevalence 33.3%). Parasites have been identified as B. procyonis based on both morphometric and molecular approaches. The aim of the present article is to report the first finding of this zoonotic parasite from Italy, highlighting the sanitary risks linked to the introduction of alien vertebrate species in new areas. Graphical Abstract

Visceral Larva Migrans: A Rare Encounter by a Cytologist

VLM is a zoonotic disease caused by the migration of third-stage larvae of nematodes through the tissue of human viscera. Among various etiological agents such as Baylisascaris procyonis, Capillaria hepatica, Ascaris sum, and some Ancylostoma species, Toxocara is a major cause of VLM. Poor hygiene, contact with dogs and geophagia increases the risk of toxocariasis.Young adults and children who are in close contact with animals are at a higher risk. Here we present a case of 7 years male child presenting with fever, abdominal pain and vomiting. The clinical presentation, biochemical and radiological findings supported the diagnosis of VLM which was corroborated in the cytological examination. Here we report a rarest encounter of VLM in the cytology smear.