Abstract
During recent years, nosematosis (syn. encephalitozoonosis) has caused serious losses among young blue foxes (Alopex lagopus) in Norway; the causative organism is considered to be Nosema (syn. Encephalitozoon) cuniculi. Descriptions of clinical symptoms and patho-morphological changes on which the diagnosis is based have been given in previous papers (Nordstoga 1972, Nordstoga et al 1974, Nordstoga & Westbye 1976). The disease, as a rule, is restricted to certain litters, in which several or all pups are affected, a pattern which indicates a congenital infection. In a previous report we presented experimental evidence for transplacental transmission, after oral infection of the dam (Mohn et al. 1974). Although we feel that oral exposure, resulting in subclinical infection, is the most common way in which the dams are infected, field observations indicate that the organisms, in rare cases, may be transmitted from the male during matins.
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References
- Fougner A, Aamdal J, Andersen K. Intrauterine insemination with frozen semen in the blue fox. Nord. Vet.-Med. 1973;25:144–149. [PubMed] [Google Scholar]
- Garcia A G P. Congenital toxoplasmosis in two successive sibs. Arch. Dis. Childh. 1968;43:705–710. doi: 10.1136/adc.43.232.705. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Mohn S F, Ødegaard Ø A A. The indirect fluorescent antibody test (IFAT) for the detection of Nosema cuniculi antibodies in the blue fox (Alopex lagopus) Acta vet. scand. 1977;18:290–292. doi: 10.1186/BF03548458. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Mohn S F, Nordstoga K, Krogsrud J, Helgebostad A. Transplacental transmission of Nosema cuniculi in the blue fox (Alopex lagopus) Acta path, microbiol. scand. Sect. B. 1974;82:299–300. doi: 10.1111/j.1699-0463.1974.tb02328.x. [DOI] [PubMed] [Google Scholar]
- Nordstoga K. Nosematosis in blue foxes. Nord, Vet.-Med. 1972;24:21–24. [PubMed] [Google Scholar]
- Nordstoga K, Westbye Kr. Polyarteritis nodosa associated with nosematosis in blue foxes. Acta path, microbiol. scand. Sect. A. 1976;84:291–296. doi: 10.1111/j.1699-0463.1976.tb00102.x. [DOI] [PubMed] [Google Scholar]
- Nordstoga K, Mohn S F, Loftsgård G. Proc. 12th Nord. Vet. Congr. 1974. Nosematose hos blårev. (Nosematosis in blue foxes) pp. 183–186. [Google Scholar]
- Waldeland H. Toxoplasmosis in sheep. Long-term epidemiological studies in four breeding flocks. Acta vet. scand. 1977;18:227–236. doi: 10.1186/BF03548451. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Werner H, Egger I. Die latente Toxoplasmainfektion des Uterus und ihre Bedeutung für die Schwangerschaft. III. Mitteilung. Experimentelle Untersuchungen über den Einfluss der latenten Toxoplasmainfektion mit dem Stamm Weiss auf die Trächtigkeit bei Mäusen. (Toxoplasma infection of the uterus and its importance for pregnancy. III. Communication. Experimental investigations on the influence, of latent toxoplasma infection by strain Weiss upon gravidity in mice) Zbl. Bakt., I. Abt. Orig. 1969;212:155–167. [PubMed] [Google Scholar]