Abstract
Parvovirus infections in cats have been well known for around 100 years. Recently, the use of molecular assays and metagenomic approaches for virus discovery and characterization has led to the detection of novel parvovirus lineages and/or species infecting the feline host. However, the involvement of emerging parvoviruses in the onset of gastroenteritis or other feline diseases is still uncertain.
Highlights
The aim of this review is to provide an update on emerging feline parvoviruses that have most recently been identified in association with enteric signs
In the last twenty years, using new molecular techniques and metagenomic approaches for the screening of feline samples, several lineages and species of parvoviruses have been found in association with enteric and/or respiratory disease in cats
Several aspects concerning epidemiology and virus–host interaction remain to be clarified, some pieces of evidence suggest these emerging feline parvoviruses may act as primary causative pathogens or synergistic agents in the occurrence of clinical signs in cats
Summary
FPV infection causes feline panleukopenia (FPL), a highly contagious, often fatal disease, characterized by acute severe enteritis, dehydration and sepsis due to lymphoid depletion and pancytopenia [12]. In agreement with current ICTV guidelines, parvoviruses are considered members of the same species if their NS1 proteins share more than 85% amino acid (aa) sequence identity. They can be classified into the same taxon if their protein sequences cluster as a robust monophyletic lineage based on their complete NS1 protein sequence at the subfamily level and on their SF3 helicase domains at the family level.
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