Corrigendum to “Trifascicular block in a cat infected with Cytauxzoon felis” [J Veter Cardiol (2021) 35, 121–123]”

Cytauxzoon felis, a tick-borne hemoprotozoal pathogen of felids, causes an acute, often-fatal disease in domestic cats. While public awareness of the disease has increased, few studies have evaluated the incidence of acute cytauxzoonosis cases and their associated risk factors. The objective of this study was to retrospectively review records of cats diagnosed with acute cytauxzoonosis in eastern Kansas from 2006–2019 using clinic records and determine: (i) feline cytauxzoonosis risk factors; and (ii) if cytauxzoonosis case incidence is increasing. Although inter-annual variation of acute cytauxzoonosis diagnosis was observed in the eastern Kansas domestic cat population, the overall incidence trend remained largely unchanged over the 14-year case review period. In comparison to ill (C. felis-unrelated) control cases, more acute cytauxzoonosis cases were diagnosed in spring and summer, suggesting a seasonal fluctuation of infection, with samples most commonly submitted from ≥1 year old, owned, male cats. Although cytauxzoonosis case submissions remained consistent over the broad study period, increasing tick vector and domestic cat reservoir populations may contribute to additional cytauxzoonosis case expansion in endemic areas. Investigating the incidence of acute cytauxzoonosis, patient risk factors, and ecological variables that influence disease transmission are important steps towards developing and communicating the need for effective cytauxzoonosis control strategies for high-risk cat populations.

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Molecular detection of feline arthropod-borne pathogens in cats in Cuiabá, state of Mato Grosso, central-western region of Brazil

Revista Brasileira de Parasitologia Veterinária ◽

10.1590/s1984-29612013000300011 ◽

2013 ◽

Vol 22 (3) ◽

pp. 385-390 ◽

Cited By ~ 25

Author(s):

Natasha Gandolfi Miceli ◽

Fernando Antonio Gavioli ◽

Luiz Ricardo Gonçalves ◽

Marcos Rogério André ◽

Valéria Régia Franco Sousa ◽

...

Keyword(s):

Molecular Detection ◽

Western Region ◽

Mato Grosso ◽

Animal Shelters ◽

Blood Samples ◽

Cytauxzoon Felis ◽

The City ◽

Veterinary Hospital

Hemotrophic mycoplasmas (hemoplasmas), Bartonellasp., Hepatozoon sp. and Cytauxzoon felis are prominent pathogens that circulate between cats and invertebrate hosts. The present study aimed to detect the presence of DNA from hemoplasmas,Bartonella sp., Hepatozoon sp. andCytauxzoon felis, and then confirm it by means of sequencing, in blood samples from cats in Cuiabá, MT, Brazil. From February 2009 to February 2011, blood samples with added EDTA were collected from 163 cats that were being housed in four different animal shelters in the city of Cuiabá, state of Mato Grosso, Brazil and from 15 cats that were admitted to the veterinary hospital of the Federal University of Mato Grosso (UFMT). Out of the 178 cats sampled, 15 (8.4%) were positive for hemoplasmas: four (2.2%) forMycoplasma haemofelis, 12 (6.7%) for ‘Candidatus M. haemominutum’ and one (0.5%) for ‘Candidatus M. turicensis’. One cat (0.5%), a patient that was attended at the veterinary hospital, was coinfected with M. haemofelis, ‘Candidatus M. haemominutum’ and ‘Candidatus M. turicensis’, based on sequencing confirmation. Four cats were positive for Bartonella spp.: three (1.7%) for B. henselae and one (0.5%) for B. clarridgeiae. None of the animals showedCytauxzoon sp. or Hepatozoon sp. DNA in their blood samples. This study showed that cats housed in animal shelters in the city of Cuiabá, state of Mato Grosso, are exposed to hemoplasmas andBartonella species.

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Preliminary study of Cytauxzoon felis infection in outdoor cats in Mashhad, Iran

Parasitology Research ◽

10.1007/s00436-020-06780-7 ◽

2020 ◽

Vol 119 (12) ◽

pp. 4177-4183 ◽

Cited By ~ 1

Author(s):

Mina Rahmati Moghaddam ◽

Mahdieh Zaeemi ◽

Gholam Reza Razmi

Keyword(s):

Cytauxzoon Felis ◽

Preliminary Study

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Prevalence of Cytauxzoon felis Infection-Carriers in Eastern Kansas Domestic Cats

Pathogens ◽

10.3390/pathogens9100854 ◽

2020 ◽

Vol 9 (10) ◽

pp. 854 ◽

Cited By ~ 1

Author(s):

Yvonne M. Wikander ◽

Tippawan Anantatat ◽

Qing Kang ◽

Kathryn E. Reif

Keyword(s):

Mitochondrial Gene ◽

Seasonal Fluctuation ◽

Mitigation Strategies ◽

Domestic Cat ◽

Infection Prevalence ◽

Domestic Cats ◽

Cytauxzoon Felis ◽

Tick Transmission ◽

Quantitative Pcr Assay

Cytauxzoon felis is a hemoprotozoal tick-transmitted pathogen of felids. Felids that survive acute disease often remain infected and serve as reservoirs for subsequent tick transmission to other susceptible felines. States adjacent to Kansas have identified C. felis-domestic cat carriers while statewide awareness and concern of cytauxzoonosis have increased. The objective of this study was to determine the prevalence of C. felis-carriers in the eastern Kansas domestic cat population using a sensitive quantitative PCR assay targeting the C. felis Cox3 mitochondrial gene. An overall C. felis infection prevalence of 25.8% was determined for asymptomatic domestic cats in eastern Kansas. Significantly more C. felis-carrier cats were identified in spring and fall, suggesting a seasonal fluctuation of survivors. Additionally, a greater percentage of feral and owned cats were positive for C. felis compared to rescue/rescinded cats. This study demonstrates that C. felis-domestic cat carriers are common among cats that spend at least a portion of time outdoors in eastern Kansas, and that more cats likely survive cytauxzoonosis than expected. Understanding the role of domestic cat carriers of C. felis is essential in developing cytauxzoonosis mitigation strategies, including recommending year-round use of acaricide products for all cats that spend any time outdoors.

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