Microfilaria spp

From Dog
Microfilaria observed in Giemsa blood smears of dogs from Ladakh, India which conform to the morphological descriptions of M. auquieri[1]

Microfilaria spp are a rare hematophagous parasite of dogs in India.

Species which have been reported in dogs include:

  • Microfilaria auquieri

This parasite, which resides in the lymphatic organs of dogs, have a life cycle similar to Brugia pahangi and was first described in stray dogs in Algeria around 1920[2].

Little is known of this parasite, apart from an apparent relationship with Hippobosca spp flies, which are thought to transmit the infective larval stages[3].

The adult form of Mf. auquieri is not yet known as attempts to search for the adult parasite failed despite a systematic post-mortem by the early French researchers[4]. It is interesting to note also that almost all dogs in Ladakh, and a small proportion in Delhi, were found infested with a species of blood-sucking fly, identified as Hippobosca longipennis.

Speculation exists whether Hippobosca are a mere co-incidence that this fly also happens to be common in Algeria where Mf. auquieri was first reported.

References

  1. Megat Abd Rani PA et al (2010) A survey of canine filarial diseases of veterinary and public health significance in India. Parasit Vectors 3:30
  2. Foley H (1921) Microfilaires du chien dans le Sud-Oranais. Ann Inst Pasteur (Paris) 35:212–217
  3. Bequaert J (1930) Notes on Hippoboscidae 2. The subfamily Hippoboscinae. Psyche (Stuttg) 37:303–326
  4. Rioche M (1960) Presence de Dipetalonema dracunculoides (Cobbold, 1870) chez le chien dans la region d'Alger. Arch Inst Pasteur Algér 38:386–398