| toxoplasmosis in atlantic bottle-nosed dolphins (tursiops truncatus). | a female atlantic bottle-nosed dolphin (tursiops truncatus) and her calf were found beached on picnic island in tampa bay, florida, usa. despite therapy the animals died. necropsy revealed severe pneumonia and lymphadenopathy in the mother and the calf, gastric ulcers and infection with the stomach digenean braunina cordiformis in the mother, and a large, pale liver in the calf. toxoplasma gondii was identified by light and electron microscopy and by immunohistochemistry in tissues of both anima ... | 1990 | 2388360 |
| toxoplasma gondii, neospora caninum, sarcocystis neurona, and sarcocystis canis-like infections in marine mammals. | toxoplasma gondii, neospora caninum, sarcocystis neurona, and s. canis are related protozoans that can cause mortality in many species of domestic and wild animals. recently, t. gondii and s. neurona were recognized to cause encephalitis in marine mammals. as yet, there is no report of natural exposure of n. caninum in marine mammals. in the present study, antibodies to t. gondii and n. caninum were assayed in sera of several species of marine mammals. for t. gondii, sera were diluted 1:25, 1:50 ... | 2003 | 14580799 |
| seroprevalence of toxoplasma gondii antibodies in wild dolphins from the spanish mediterranean coast. | although toxoplasma gondii infection has been found occasionally in cetaceans, little is known of the prevalence of antibodies to t. gondii in wild dolphins. antibodies to t. gondii were determined in serum samples from 58 dolphins stranded in the spanish mediterranean coast. modified agglutination test was used to determine t. gondii antibodies, and a titer of 1:25 was considered indicative of t. gondii infection. antibodies to t. gondii were found in 4 of 36 striped dolphins (stenella coeruleo ... | 2004 | 15270114 |
| the prevalence of toxoplasma gondii antibodies in wild and captive cetaceans from japan. | the seroprevalence of toxoplasma gondii was investigated in wild and captive cetaceans from japan. antibodies against t. gondii were examined by both latex agglutination test (lat) and indirect hemagglutination test (ihat) for 77 serum or plasma samples obtained from 59 individuals of 6 species, including 2 hybrids. antibody titers greater than 1:64 in lat and greater than 1:640 in ihat, indicative of the presence of t. gondii, were found in 11.9% of 59 individuals. in 7 samples that showed a po ... | 2004 | 15357097 |
| a comparison of several serologic tests to detect antibodies to toxoplasma gondii in naturally exposed bottlenose dolphins (tursiops truncatus). | toxoplasma gondii infection in marine mammals is intriguing and indicative of contamination of the ocean environment and coastal waters with oocysts. in a previous study, 138 of 141 (97.8%) bottlenose dolphins (tursiops truncatus) from the coasts of florida and california had antibodies to t. gondii by the modified agglutination test (mat). although the mat has been found to be highly sensitive and specific for t. gondii antibodies from several species of terrestrial animals, it has not yet been ... | 2005 | 16419751 |
| isolation of toxoplasma gondii from bottlenose dolphins (tursiops truncatus). | toxoplasma gondii infection in marine mammals is intriguing and indicative of contamination of the ocean environment and coastal waters with oocysts. in previous serological surveys, >90% of bottlenose dolphins (tursiops truncatus) from the coasts of florida, south carolina, and california had antibodies to t. gondii by the modified agglutination test (mat). in the present study, attempts were made to isolate t. gondii from dead t. truncatus. during 2005, 2006, and 2007, serum or blood clot, and ... | 2008 | 18576793 |
| toxoplasmosis in captive dolphins (tursiops truncatus) and walrus (odobenus rosmarus). | toxoplasma gondii infection in marine mammals is intriguing and indicative of contamination of the ocean environment and coastal waters with oocysts. toxoplasma gondii infection was detected in captive marine mammals at a sea aquarium in canada. antibodies to t. gondii were found in all 7 bottlenose dolphins (tursiops truncatus) tested. two of these dolphins, as well as a walrus (odobenus rosmarus) at the facility, died. encephalitis and t. gondii tissue cysts were identified in histological sec ... | 2009 | 19245284 |
| serological evidence of toxoplasma gondii infection in captive marine mammals in mexico. | toxoplasma gondii infection in marine mammals is important because they are considered as a sentinel for contamination of seas with t. gondii oocysts, and toxoplasmosis causes mortality in these animals, particularly sea otters. serological evidence of t. gondii infection was determined in 75 captive marine mammals from four facilities in southern and central geographical regions in mexico using the modified agglutination test (mat). antibodies (mat, 1:25 or higher) to t. gondii were found in 55 ... | 2011 | 21944844 |
| western blot expression of 5-lipoxygenase in the brain from striped dolphins (stenella coeruleoalba) and bottlenose dolphins (tursiops truncatus) with or without encephalitis/meningo-encephalitis of infectious nature. | dolphin morbillivirus (dmv), toxoplasma gondii and brucella ceti are pathogens of major concern for wild cetaceans. although a more or less severe encephalitis/meningo-encephalitis may occur in striped dolphins (stenella coeruleoalba) and bottlenose dolphins (tursiops truncatus) infected by the aforementioned agents, almost no information is available on the neuropathogenesis of brain lesions, including the neuronal and non-neuronal cells targeted during infection, along with the mechanisms unde ... | 2015 | 25864766 |
| morbillivirus infection in cetaceans stranded along the italian coastline: pathological, immunohistochemical and biomolecular findings. | morbilliviruses are recognized as biological agents highly impacting the health and conservation status of free-ranging cetaceans worldwide, as clearly exemplified by the two dolphin morbillivirus (dmv) epidemics of 1990-1992 and 2006-2008 among mediterranean striped dolphins (stenella coeruleoalba). after these two epidemics, morbilliviral infection (mi) cases with peculiar neurobiological features were reported in striped dolphins stranded along the spanish coastline. affected cetaceans showed ... | 2013 | 22921372 |
| retrospective seroepidemiological investigations against morbillivirus, toxoplasma gondii and brucella spp. in cetaceans stranded along the italian coastline (1998-2014). | this study reports the results of seroepidemiological investigations carried out against morbillivirus, toxoplasma gondii and brucella spp. on blood serum samples collected from 70 cetacean specimens found stranded along the italian coastline between 1998 and 2014. a total number of 23 serum samples (32.8%) obtained from stenella coeruleoalba, tursiops truncatus, balaenoptera physalus and globicephala melas harboured anti-morbillivirus neutralizing antibodies. ten sera (16%) collected from s. co ... | 2015 | 26267096 |
| development of an indirect immunofluorescence technique for the diagnosis of toxoplasmosis in bottlenose dolphins. | the diagnosis of toxoplasmosis is often complicated by the lack of specific clinical symptoms or postmortem features, in humans and other animals. the only diagnostic test described so far for the serological diagnosis of toxoplasma gondii in marine mammals is the modified agglutination test (dubey et al., am j vet res 48(8):1239-1243, 1987). the development of more sensible and specific immunological techniques requires specific antibodies, which are currently unavailable in the scientific mark ... | 2014 | 24221890 |