ISSN 2398-2950      

Lynxacarus radovskyi

ffelis

Synonym(s): L.radovskyi, fur mite


Introduction

Classification

Taxonomy

  • Class: Arachnida
  • Subclass: Astigmata
  • Order: Sarcoptiformes
  • Superfamily: Listrophoridae
  • Genus: Lynxacarus
  • Species: radovskyi

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Clinical Effects

Epidemiology

Habitat

  • All life stages on hair shafts.
  • Limited survival thought to occur in the environment away from the host as cases of infestation have been reported from contaminated bedding and packing materials.

Lifecycle

  • Egg.
  • Larvae.
  • Nymph.
  • Adult.

Transmission

  • Direct contact with infested cats.
  • Contact with environments contaminated with life stages.

Pathological effects

  • Scurf in coat and “peppering” of coat with visible adult mites. Alopecia, papules and crusts secondary to overgrooming.
  • Antigenic stimulation leading to gingivitis.
  • Gut and rectal irritation with or without furballs secondary to overgrooming.
  • Restlessness, fever, anorexia and weight loss due to discomfort, gastrointestinal disturbance and antigenic stimulation.
  • Transient papular rash in humans that have come into close contact with infested cats.

Control

Control via animal

  • Anthelmintic treatment of clinically infested individuals as well as all in contact cats.
  • Treatment of the environment.
  • Screening of cats with relevant clinical signs that have been imported from high prevalence countries.
  • Good hand hygiene around infested cats.
  • Separate infested cats in order to prevent further infestation to other animals in the household.
  • Weekly baths using a soap containing tetramethylthiuram monofulfide.

Control via chemotherapies

  • Fipronil Fipronil spray: whole coat application and then repeated 3 weeks later.
  • Fluralaner Fluralaner: single oral dose.
  • Ivermectin Ivermectin - 300 micrograms/kg orally every week for three weeks
  • Lime sulfur dips every five to seven days for three weeks
  • Milbemycin Milbemycine oxime: 2 mg/kg orally once weekly for three weeks
  • Moxidectin Moxidectin/imidacloprid Imidacloprid: topical dose, repeated 2 weeks later.
  • Selamectin Selamectin: topical dose every 2 weeks for a total of 6 weeks.

Control via environment

  • Environmental treatment with a pyrethroid/insect growth regulator spray. Care must be taken to remove cats, pet invertebrates, reptiles and fish before treatment.
  • Daily vacumming to remove contaminated hair and life stages in the environment.
  • Maintaining a dry environment with low humidity to reduce life stage survival time in the environment.

Diagnosis

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Further Reading

Publications

Refereed papers

  • Recent references from PubMed and VetMedResource.
  • Javanthy C, Naharajan B & Latha B R (2017) Cat fur mite Lynxacarus radovskyi in India. J Parasit Dis 41 (4), 1102-1104 PubMed.
  • Han H S, Noli C & Cena T (2016) Efficacy and duration of action of oral fluralaner and spot-on moxidectin/imidacloprid in cats infested with Lynxacarus radovskyi. Vet Dermatol 27 (6), 474-e127 PubMed.
  • Romeiro E T, Alves L C, Soares Y M et al (2007) [Infestation by Lynxacarus radovskyi (Tenorio, 1974) in domestic cats from Metropolitan Region of Recife, Pernambuco, Brazil.] Rev Bras Parasitol Vet 16 (3), 159-162 PubMed.
  • Heath A C & Mariadass B (1999) A New Zealand record for the cat fur-mite, Lynxacarus (Felistrophorus) radovskyi Tenorio (Acarina: Astigmata: Listrophoridae). N Z Vet J 47 (6), 211-212 PubMed.
  • Munro R & Munro H M (1979) Lynxacarus on cats in Fiji. Aus Vet J 55 (2), 90 PubMed.
  • Bowman W L & Domrow R (1978) The cat fur-mite (Lynxacarus radovskyi) in Australia. Aus Vet J 54 (8), 403-404 PubMed.
  • Tenorio J M (1974) A new species of Lynxacarus (Acarina: Astigmata: Listrophoridae) from Felis catus in the Hawaiian Islands. J Med Entomol 11 (5), 599-604 PubMed.

Other sources of information

  • Schwassman M & Logas D (2010) How to treat common parasites safely. In: August J R (Ed): Consultations in Feline Internal Medicine. Vol 6. Elsevier Saunders, Philadelphia. pp 390

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