Peer-reviewed veterinary case report
Eye worm infection in Romanian dairy cows treated with eprinomectin
By Deak, Georgiana et al.·Published in Parasitology international·2021·Department of Parasitology and Parasitic Diseases·View original on PubMed →
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Original publication title: Thelazia rhodesi in a dairy farm in Romania and successful treatment using eprinomectin.
- Species:
- cattle
Plain-English summary
A group of cattle on a dairy farm in Romania was found to have eye worms, specifically Thelazia rhodesi, which can cause discomfort and irritation. The farmers noticed symptoms like watery eyes and squinting in the affected cows. To treat the infection, the veterinarians used eprinomectin, which successfully eliminated the parasites. This case marks the first time eprinomectin has been reported as effective against these eye worms in cattle, and it also confirms the presence of this parasite in Romania.
People also search for: cow eye worms treatment · Thelazia rhodesi in cattle · eprinomectin for cattle eye infection
Abstract
Bovine thelaziosis can be caused by Thelazia rhodesi Desmarest 1828, Thelazia gulosa Railliet & Henry 1910 and Thelazia skrjabini Erschow 1928 which are known to be transmitted by species of Muscidae. Therapeutic measures in cattle include mechanical removal of the adult parasites, followed by irrigation of the conjunctival sac with different solutions such as levamisole (1%) or administration of ivermectin (0.2 mg/kg SC), doramectin (0.2 mg/kg SC or pour-on) both with high efficacy, however, the use of such macrocyclic lactones can be problematic in lactating cattle. Nematodes harboured in the eyes of some cattle from Romania were morphologically identified as Thelazia rhodesi and the PCR analysis confirmed the diagnosis with a 98.0% nucleotide similarity for ITS1 sequence, with other sequences available in GenBank. The present paper reports the presence of T. rhodesi in cattle from a dairy farm in Romania and the recovery after treatment with eprinomectin. To the best of our knowledge this is the first report on the efficacy of eprinomectin against Thelazia spp. and the first molecular confirmation of T. rhodesi in Romania.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/32891881/