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Year : 2007  |  Volume : 25  |  Issue : 1  |  Page : 72-

Human thelaziasis in India

AM Khan 
 Regional Medical Research Centre, Dibrugarh - 786001, Assam, India

Correspondence Address:
A M Khan
Regional Medical Research Centre, Dibrugarh - 786001, Assam

How to cite this article:
Khan A M. Human thelaziasis in India.Indian J Med Microbiol 2007;25:72-72

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Khan A M. Human thelaziasis in India. Indian J Med Microbiol [serial online] 2007 [cited 2020 Nov 27 ];25:72-72
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Dear Editor,

Thelazic de Rhodes name given to Thelazia, by Bosc Taurus[1] commonly known as eye worm or Oriental worm was first described by Johannes Rhodes in 1676.[2] In India, published literature reveals five cases of human thelaziasis[3],[4],[5],[6] Human case reported by Sharma et al.[7] is the fifth report from India instead of the second as stated in the abstract column of the report. However, literature available on the prevalence of thelaziasis endorses the assumption of the authors that high occurrence of disease has been reported from tropical areas having hilly and foot hill terrains.

Northeastern region of India, which comprises of eight sister states has mountainous and foothill terrains. Heavy and long monsoon with favorable temperature range throughout the year provide ideal home for a variety of insects that play major role as vector of communicable diseases of medical and veterinary importance. The topography of the areas of Assam and its adjoining states are akin to Himachal Pradesh. Therefore, high prevalence of infections like thelaziasis may not be ruled out from both the areas. In fact, as speculated by the authors, a systematic survey of farm animals and pets from these areas for Thelazia parasite and vector (face fly?) will shed some light on the problem of thelaziasis in India.


1Bosc C. Rapport sur un nouveau genre de vers intestinaux, etc (Cited from Lee, R.D. and W.E. Parmelee, 1958). J de Physiq Chim Hist Nat 1819; 88 :214-5..
2Faust EC. Thelazia infection of man and animals in China. Trans Roy Soc Trop Med Hyg 1927; 20 :365-9.
3Friedmann M. Thelazia callipaeda, the "Oriental Eye worm" Antiseptic 1948; 45 :620-6. (Cited from Lee, R.D. and W.E. Parmelee, 1958).
4Mukherjee PK, Verma S, Agrawal S. Intra ocular Thelazia: A case report. Indian J Ophthalmol 1978; 25 :41-2.
5Singh TS, Singh KN. Thelaziasis : Report of two cases. Br J Ophthalmol 1993; 7 :528-9.
6Mahanta J, Alger J, Bordoloi P. Eye infestation with Thelazia species. Indian J Ophthalmol 1996; 44 :99-101.
7Sharma A, Pandey M, Sharma V, Kanga A, Gupta ML. A case of human thelaziasis from Himachal Pradesh. Indian J Med Microbiol 2006; 24 :67-9.