Molecular characterization of ocular dirofilariasis: a case report of Dirofilaria immitis in south-eastern Iran

BMC Infectious Diseases - Tập 20 - Trang 1-5 - 2020
Razieh Parsa1, Ali Sedighi1, Iraj Sharifi2, Mehdi Bamorovat2, Saeid Nasibi3
1Ophthalmologist, Clinical Research Center, Pasteur Educational Hospital, Bam University of Medical Sciences, Bam, Iran
2Leishmaniasis Research Center, Kerman University of Medical Sciences, Kerman, Iran
3Research Center for Hydatid Disease in Iran, Kerman University of Medical Sciences, Kerman, Iran

Tóm tắt

Dirofilariasis is a zoonotic parasitic infection transmitted from animals to humans by culicid mosquitoes. Although the disease can be caused by Dirofilaria spp. including Dirofilaria immitis and Dirofilaria repens, human ocular dirofilariasis due to D. immitis is relatively rare in the world. This study was aimed to present a case of ocular dirofilariasis caused by D. immitis in southeastern Iran. A nematode extracted from the right eye of a 69-year-old man referred with clinical symptoms including itching and redness was examined. After the morphometric analysis, Dirofilaria parasite was detected. Afterwards, a piece of worm body was cut and DNA was extracted and a 680-bp gene fragment amplification and nucleotide sequencing were performed. Phylogenetic analysis revealed a D. immitis roundworm as the causative agent of infection. The patient was treated with antibiotics and corticosteroid and followed up for 1 month. The present study provides the second report on ocular dirofilariasis caused by D. immitis isolated from a human in southeast Iran. Based on the available evidence, dirofilariasis in dogs has significantly increased in endemic areas such as Iran. Therefore, physicians should be aware of such zoonotic nematodes so as to take proper and timely action and treatment against the disease.

Tài liệu tham khảo

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