A nationwide serological survey for Dirofilaria immitis in companion cats in the United States of America: 3.5% antibody and 0.3% antigen positivity

Autor: Daniel Felipe Barrantes Murillo, Lindsay Starkey, Theresa Wood, Rachel Smith, Byron Blagburn, Joy Bowles, Hill Allen, Caroline Lewis, Yue Shu, Chengming Wang
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Parasites & Vectors, Vol 16, Iss 1, Pp 1-9 (2023)
Druh dokumentu: article
ISSN: 1756-3305
DOI: 10.1186/s13071-023-05829-7
Popis: Abstract Background Feline heartworm disease (HWD) is a complex and often misdiagnosed disease in cats, caused by the filarial nematode Dirofilaria immitis. Despite its significant impact, studies reporting the prevalence of D. immitis in apparently healthy pet cats in the USA are lacking. Methods To investigate feline heartworm seroprevalence in apparently healthy pet cats in the USA, serum samples (n = 2165) collected from cats across 47 states and Washington District of Columbia were analyzed for D. immitis antibody (Heska Corp.) and antigen (DiroCHEK®; Zoetis Inc.) with and without acid treatment of the samples. Results Antibodies to D. immitis antibodies were identified in 3.5% (76/2165) of cats from 26 states, with a significantly higher prevalence in cats from the westernmost US states (West region; 5.4%, 23/429) compared to those from the South (3.8%, 32/847), Midwest (2.7%, 9/338) and Northeast regions (2.2%, 12/551) (P
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