Antibodies to snowshoe hare virus of the California group in the horse population in Nova Scotia

1980 ◽  
Vol 26 (6) ◽  
pp. 654-657 ◽  
Author(s):  
B. L. McFarlane ◽  
J. E. Embree ◽  
J. A. Embil ◽  
K. R. Rozee ◽  
J. B. Weste ◽  
...  

A large number of North American equine samples were tested for the California group of arboviruses (CAL). Of 861 equine sera tested by hemagglutination inhibition using the snowshoe hare virus as an antigen, 106 (12.3%) were positive. Neutralization tests confirmed antibodies to this virus in 72 of the positive sera. This study provides evidence of CAL activity in the domestic animal population of Nova Scotia.

1981 ◽  
Vol 27 (11) ◽  
pp. 1224-1227 ◽  
Author(s):  
B. L. McFarlane ◽  
J. E. Embree ◽  
J. A. Embil ◽  
H. Artsob ◽  
J. B. Weste ◽  
...  

This study, the first of arbovirus activity in Prince Edward Island, has shown antibodies to the snowshoe hare strain of the California encephalitis group virus to be present in sera of wild and domestic animals; 15.35% of snowshoe hare, 20% of equine, and 2.5% of bovine sera were positive for hemagglutination inhibition antibody, confirmed by virus neutralization procedures.


1981 ◽  
Vol 27 (11) ◽  
pp. 1219-1223 ◽  
Author(s):  
B. L. McFarlane ◽  
J. A. Embil ◽  
H. Artsob ◽  
L. Spence ◽  
K. R. Rozee

Moose (Alces alces americana Clinton) blood collected by hunters during the 1977 and 1978 hunting seasons was tested for California group antibodies. Hemagglutination inhibition (HI) tests using snowshoe hare virus (SSH) as antigen yielded 37.02% HI-positive sera. Neutralization tests showed reactors (67.5% positive) to SSH and classified six reactors as Jamestown Canyon virus (JC). This study reports the first finding of JC in a moose population; it also provides the first evidence of JC in Atlantic Canada and supports previous findings of SSH in Nova Scotia.


1975 ◽  
Vol 32 (7) ◽  
pp. 1019-1040 ◽  
Author(s):  
Edward Mitchell ◽  
V. Michael Kozicki

A 615-cm male northern bottlenose whale (Hyperoodon ampullatus) stranded in Cobequid Bay, Bay of Fundy, in early October 1969. The skull, mandible, tympano-periotics, and teeth are described and illustrated. Five growth layers in the lower teeth place the animal below a growth curve based on samples from the Labrador Sea taken in May and June. A summary of nine other North American occurrences of 12 individuals, mainly south of Sable Island, indicates a winter migration to waters offshore of Massachusetts and Rhode Island.


1977 ◽  
Vol 6 (6) ◽  
pp. 578-585
Author(s):  
W F Scherer ◽  
B A Pancake

Twenty strains of Venezuelan encephalitis (VE) virus inoculated intravenously in large doses into roosters produced hemagglutination-inhibition (HI) antibodies detectable in plasmas within 7 to 10 days. No signs of illness occurred, and there was no evidence of viral growth in tissues since blood concentrations of infectious virus steadily decreased after inoculation. HI antibodies in early plasmas were specific for VE virus and did not cross-react significantly with two other North American alphaviruses, eastern and western encephalitis viruses. VE virus strains could be distinquished by virus-dilution, short-incubation HI, but not by plasma-dilution neutralization tests, by using early rooster antibodies. The distinctions by HI test were similar with some strains to, but different with other strains from, those described by Young and Johnson with the spiny rat antisera used to establish their subtype classifications of VE virus (14, 28). Nevertheless, results of HI tests with rooster antibodies correlated with equine virulence, as did results with spiny rat antibodies, and distinguished the new strains of virus that appeared in Middle America during the VE outbreak of 1969 from preexisting strains.


2016 ◽  
Vol 149 (2) ◽  
pp. 191-203 ◽  
Author(s):  
S.E. Blatt ◽  
C. Bishop ◽  
J. Sweeney

AbstractChristmas trees from Nova Scotia, Canada are banned from import into the European Union (EU) because they may be infected with the pinewood nematode, Bursaphelenchus xylophilus (Steiner and Buhrer) Nickle (Nematoda: Parasitaphelenchidae). Monochamus Dejean (Coleoptera: Cerambycidae) species known to vector pinewood nematode are present in Nova Scotia but their abundance in Christmas tree plantations and surrounding stands has not been assessed. We conducted trapping surveys and experiments in 2014 and 2015 to determine the species of Monochamus and their relative abundance in Nova Scotia Christmas tree plantations and the surrounding forests. We also compared commercially available traps and lures from Europe (cross-vane traps, Galloprotect lure=monochamol+ipsenol+α-pinene+2-methyl-3-buten-2-ol) and North America (intercept panel traps, North American lure=monochamol+ipsenol+α-pinene+ethanol) for their efficacy at catching Monochamus species in a 2×2 factorial experiment. We captured three Monochamus species (M. scutellatus (Say), M. notatus (Drury), and M. marmorator Kirby) in Nova Scotia Christmas tree plantations. Mean trap catches were greater within the plantations than in the surrounding forests. North American panel traps coated with Fluon® and baited with the European lure caught the most M. notatus and M. scutellatus and would be most suitable for survey and monitoring.


1960 ◽  
Vol 92 (11) ◽  
pp. 851-857 ◽  
Author(s):  
L. O. T. Peterson

Richards (9) recognized five species of Lecanium for Canada – namely L. coryli L., L. cerasifex Fitch, L. tiliae L., L. nigrofasciatum Pergande and L. caryae Fitch. L. coryli L. and L. cerasifex Fitch were distributed from British Columbia to Nova Scotia; L. tiliae L. occurred only in British Columbia.Further, Richards (9) drew the following conclusions:1.) L. coryli is the L. corni Bouché of Marchal (1908) and of most European workers but is not the L. corni of North American workers.2.) L. corni Bouché of Sanders (1909) and subsequent North American workers is a mixture of two species, L. corni Bouché of Marchal and L. cerasifex Fitch of Richards.3.) L. tiliae is L. coryli of Marchal (1908) and subsequent workers.


1988 ◽  
Vol 62 (2) ◽  
pp. 309-311 ◽  
Author(s):  
Gregory D. Edgecombe

The pseudorthoceratid subfamily Macroloxoceratinae Flower, 1957, comprises a rare group of nautiloid cephalopods homeomorphic with the Actinoceratida in the development of a siphonal canal system. With the exception of Macroloxoceras Flower, 1957, from the Upper Devonian of Colorado and New Mexico, this subfamily has previously been reported only from the Mississippian of Europe. A specimen described herein from the late Viséan–?early Namurian Kennetcook Limestone of the Windsor Group of Nova Scotia, assigned to Campyloceras cf. C. unguis (Phillips, 1836), extends the range of the Macroloxoceratinae into the North American Mississippian. This discovery further provides new data on the complex siphonal morphology of this poorly known group of nautiloids, and supplements the recent documentation of the pseudorthoceratids in the Windsor Group cephalopod fauna (Edgecombe, 1987).


1978 ◽  
Vol 15 (9) ◽  
pp. 1422-1436 ◽  
Author(s):  
L. F. Jansa ◽  
B. Mamet ◽  
A. Roux

Three short cores of Windsor Group carbonates from the northeast Newfoundland Shelf yielded Late Viséan foraminifers of Zones 15 and 16Inf. This most northeastward occurrence of the marine Lower Carboniferous on the American continent has foraminifers identical to those reported from Windsor carbonates exposed in southwestern Newfoundland and Nova Scotia. The foraminifera belong to the North American realm and not to the Tethyan realm. The algae are exceptionally well preserved. Except for a single species, they are also 'American' and not Tethyan. This confirms that the proto-Atlantic effectively separates the North American and Euro–African continental blocks in Early Carboniferous time.


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