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Human subcutaneous dirofilariasis in Assam.

Reema Nath1, Sorbeswar Bhuyan, Himadri Dutta

  • 1Department of Microbiology, Assam Medical College and Hospital, Dibrugarh, Assam, India.

Tropical Parasitology
|August 21, 2013
PubMed
Summary

Human subcutaneous dirofilariasis, caused by Dirofilaria worms transmitted by mosquitoes, is emerging in India. Three cases of Dirofilaria repens infections presented as nodules, highlighting its potential as a zoonotic disease in Assam.

Keywords:
Dirofilariasishumansubcutaneous infection

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Area of Science:

  • Medical Parasitology
  • Zoonotic Diseases
  • Public Health

Background:

  • Human subcutaneous dirofilariasis is an infection caused by filarial worms of the genus Dirofilaria.
  • These parasites are transmitted to humans through the bite of infected mosquitoes.
  • Dirofilaria repens is a common species found in various regions, including India.

Purpose of the Study:

  • To report and analyze three cases of human subcutaneous dirofilariasis caused by Dirofilaria repens in Dibrugarh, Assam, north east India.
  • To highlight the clinical presentation of subcutaneous nodules in affected patients.
  • To emphasize the potential emergence of this zoonotic disease in the region.

Main Methods:

  • Case reporting and clinical observation of three patients presenting with subcutaneous nodules.
  • Identification of the causative agent as Dirofilaria repens.
  • Analysis of the geographical location and timeframe of the reported cases.

Main Results:

  • Three cases of human subcutaneous dirofilariasis caused by Dirofilaria repens were identified in Dibrugarh, Assam.
  • The patients presented with subcutaneous nodules located on the chest, cheek, and anterior abdominal wall.
  • The frequency of reported cases within a six-month period suggests a potential increase in incidence.

Conclusions:

  • Subcutaneous dirofilariasis caused by Dirofilaria repens is a significant zoonotic concern in Assam, north east India.
  • The condition should be considered in the differential diagnosis for patients presenting with unexplained subcutaneous nodules in this region.
  • Increased awareness and surveillance are necessary to manage this emerging zoonosis effectively.