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  • Title: Occurrence of Thelazia lacrymalis (Nematoda, Spirurida, Thelaziidae) in native horses in Abruzzo region (central eastern Italy).
    Author: Giangaspero A, Tieri E, Otranto D, Battistini ML.
    Journal: Parasite; 2000 Mar; 7(1):51-3. PubMed ID: 10743649.
    Abstract:
    A survey on the prevalence of Thelazia spp. in Abruzzo region (Italy) in slaughtered native horses was conducted from August 29, 1997 to August 28, 1998. Both eyes from 128 eight-month to 11 year-old native animals were examined. 50 horses (39.06%) were found parasitized by Thelazia lacrymalis. 502 specimens (371 females, 88 males and 12 larvae) were collected. In the infected horses the numbers of T. lacrymalis ranged from 1 to 48, with a mean count burden of 3.92 per head (SD = 7.79). T. lacrymalis specimens were mainly in the excretory ducts of the Harderian gland, and also in the ducts of the lacrimal glands, free in the conjunctiva and behind the nictitancte. Gross examination showed a conjunctivitis, more frequently a follicular conjunctivitis, in the 58% of the infected horses.
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