Daniel M. Aguiar, José T. Damaceno, Luciana N. Oliveira, J. P. Dubey, ...
The capybara (Hydrochaeris hydrochaeris) is a large rodent used for human consumption in certain areas of South America. In the present study, viable Toxoplasma gondii was isolated for the first time...
Most species of felids tested have been found to be the definitive host for Toxoplasma gondii. Gordon's wildcat (Felis silvestris gordoni) is a threatened species found in the United Arab Emirates...
S. Sharma, K. S. Sandhu, M. S. Bal, H. Kumar, S. Verma, J. P. Dubey
Sera from 186 sheep, 83 cattle, and 103 water buffaloes from Punjab, India, were evaluated for antibodies to Toxoplasma gondii using a commercial ELISA kit. This study was planned using a 2-stage...
Fatal Toxoplasmosis in Sand Cats (Felis margarita) (2008)
The sand cat (Felis margarita) is a small-sized felid occurring in the United Arab Emirates (UAE). The sand cat captive-breeding program at the Breeding Centre for Endangered Arabian Wildlife in...
C. Alvarado-Esquivel, R. Esquivel-Cruz, S. Estrada-Martínez, M. Rivas-González, O. Liesenfeld, ...
There is scarce information concerning the epidemiology of Toxoplasma gondii infection in people of rural Mexico. Anti-T. gondii immunoglobulin (Ig)G and IgM antibodies were sought in 462 adult...
Isolation of Toxoplasma gondii From Bottlenose Dolphins (Tursiops truncatus) (2008)
J. P. Dubey, P. A. Fair, N. Sundar, G. Velmurugan, W. E. McFee, ...
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...
Australasian marsupials, especially wallabies, are highly susceptible to clinical toxoplasmosis. This paper describes the use of atovaquone for effective treatment of toxoplasmosis in 4 Bennett's...
Toxoplasmosis in Sand Fox (Vulpes rueppelli) (2008)
Fatal toxoplasmosis was diagnosed in a sand fox (Vulpes rueppelli) from United Arab Emirates. Toxoplasma gondii–like tachyzoites were found associated with necrosis in the intestine, spleen, liver,...
Toxoplasma gondii infections in zoo animals are of interest because many captive animals die of clinical toxoplasmosis and because of the potential risk of exposure of children and elderly to T....
Toxoplasma gondii and Neospora caninum Antibodies in Dogs From Grenada, West Indies (2008)
J. P. Dubey, D. Stone, R. N. Sharma
Toxoplasma gondii and Neospora caninum are structurally similar parasites with many common hosts. The prevalence of antibodies to T. gondii and N. caninum was determined in sera from dogs in Grenada,...
Effects of High Pressure Processing on Toxoplasma gondii Oocysts on Raspberries (2008)
David S. Lindsay, Daniel Holliman, George J. Flick, David G. Goodwin, Sheila M. Mitchell, J. P. Dubey
Oocysts are the environmentally resistant life stage of Toxoplasma gondii. Humans can become infected by accidentally ingesting the oocysts in water or from contaminated produce. Severe disease can...
Experimental Toxoplasma gondii Infection in Striped Skunk (Mephitis mephitis) (2008)
Twenty-three striped skunks (Mephitis mephitis) without demonstrable antibodies in 1:25 serum dilution in the modified agglutination test (MAT) were fed sporulated Toxoplasma gondii oocysts (9...
Prevalence of Antibodies to Toxoplasma gondii in Wolverines From Nunavut, Canada (2008)
Mason V. Reichard, Luigi Torretti, Jason M. Garvon, J. P. Dubey
The prevalence of antibodies to Toxoplasma gondii was determined in blood and tissue exudates recovered from the spleens of 41 wolverines (Gulo gulo) collected in Nunavut, Canada, using a modified...
Capybara (Hydrochaeris hydrochaeris) is a large rodent distributed throughout tropical America. Antibodies to Neospora caninum in 213 feral capybaras from 11 counties of the State of São Paulo,...
Toxoplasma gondii infections in zoo animals are of interest because many captive animals die of clinical toxoplasmosis and because of the potential risk of exposure of children and elderly to T....
Toxoplasma gondii and Neospora caninum Antibodies in Dogs From Grenada, West Indies (2008)
J. P. Dubey, D. Stone, R. N. Sharma
Toxoplasma gondii and Neospora caninum are structurally similar parasites with many common hosts. The prevalence of antibodies to T. gondii and N. caninum was determined in sera from dogs in Grenada,...
Effects of High Pressure Processing on Toxoplasma gondii Oocysts on Raspberries (2008)
David S. Lindsay, Daniel Holliman, George J. Flick, David G. Goodwin, Sheila M. Mitchell, J. P. Dubey
Oocysts are the environmentally resistant life stage of Toxoplasma gondii. Humans can become infected by accidentally ingesting the oocysts in water or from contaminated produce. Severe disease can...
Experimental Toxoplasma gondii Infection in Striped Skunk (Mephitis mephitis) (2008)
Twenty-three striped skunks (Mephitis mephitis) without demonstrable antibodies in 1:25 serum dilution in the modified agglutination test (MAT) were fed sporulated Toxoplasma gondii oocysts (9...
Prevalence of Antibodies to Toxoplasma gondii in Wolverines From Nunavut, Canada (2008)
Mason V. Reichard, Luigi Torretti, Jason M. Garvon, J. P. Dubey
The prevalence of antibodies to Toxoplasma gondii was determined in blood and tissue exudates recovered from the spleens of 41 wolverines (Gulo gulo) collected in Nunavut, Canada, using a modified...
Capybara (Hydrochaeris hydrochaeris) is a large rodent distributed throughout tropical America. Antibodies to Neospora caninum in 213 feral capybaras from 11 counties of the State of São Paulo,...
J. P. Dubey, J. G. Humphreys, D. Fritz
Infection with Sarcocystis species is common in herbivores but is rare in bears. Histological sections of 374 black bears (Ursus americanus) from Pennsylvania were examined for sarcocysts. In total,...
Seroprevalence of Neospora caninum Antibodies in Dogs in India (2008)
S. Sharma, M. S. Bal, K. Kaur, K. S. Sandhu, J. P. Dubey
Neospora caninum is one of most important causes of abortion in cattle worldwide, and dogs are an important risk factor for N. caninum infection in cattle. Antibodies to N. caninum were determined in...
J. P. Dubey, D. E. Hill, N. Sundar, G. V. Velmurugan, L. A. Bandini, ...
The prevalence of Toxoplasma gondii was investigated on a poorly managed pig farm in Maryland. Serum and tissue samples from 48 of the 100 pigs on the farm were available for T. gondii evaluation....
J. P. Dubey, T. Quirk, J. A. Pitt, N. Sundar, G. V. Velmurugan, ...
Viable Toxoplasma gondii was isolated by bioassay in mice from tissues of 2 feral cats (Felis domesticus), 2 raccoons (Procyon lotor), a skunk (Mephitis mephitis) trapped in remote locations in...
J. P. Dubey, D. T. Subekti, P. Tassi, W. Cabaj, ...
The prevalence of Toxoplasma gondii in free-ranging chickens (Gallus domesticus) is a good indicator of the prevalence of the parasite's oocysts in soil because chicken feed from the ground. The...
MOUSE-VIRULENT TOXOPLASMA GONDII ISOLATED FROM FERAL CATS ON MONA ISLAND, PUERTO RICO (2007)
J. P. Dubey, N. Sundar, G. V. Velmurugan, D. Ajzenberg, ...
Cats are essential in the life cycle of Toxoplasma gondii because they are the only hosts that can excrete the environmentally resistant oocysts. Samples of serum, feces, and tissues from cats from...
SEROPREVALENCE OF TOXOPLASMA GONDII IN MESOCARNIVORES OF THE CANADIAN PRAIRIES (2007)
Y. T. Hwang, J. A. Pitt, T. W. Quirk, J. P. Dubey
The protozoon Toxoplasma gondii has a worldwide distribution and affects many species of warm-blooded animals. In the Canadian prairies, mesocarnivores such as striped skunks (Mephitis mephitis) and...
SEROPREVALENCE OF NEOSPORA CANINUM ANTIBODIES IN CATTLE AND WATER BUFFALOES IN INDIA (2007)
K. S. Sandhu, M. S. Ball, H. Kumar, S. Sharma, P. K. Sidhu, ...
Neospora caninum is now recognized as a major cause of abortion in cattle worldwide, but there is no report of N. caninum infection in cattle in India. Serum samples from 427 dairy cattle and 32...
J. P. Dubey, N. Sundar, C. A. Nolden, M. D. Samuel, G. V. Velmurugan, L. A. Bandini, ...
During 2005–2006, sera and tissues from raccoons (Procyon lotor), coyotes (Canis latrans), and skunks (Mephitis mephitis) from the state of Wisconsin were tested for Toxoplasma gondii infection....
NEOSPORA CANINUM AND TOXOPLASMA GONDII ANTIBODIES IN DOGS FROM DURANGO CITY, MEXICO (2007)
J. P. Dubey, C. Alvarado-Esquivel, O. Liesenfeld, A. González-Herrera, ...
Seroprevalence of Toxoplasma gondii Antibodies in Cats From Durango City, Mexico (2007)
C. Alvarado-Esquivel, O. Liesenfeld, A. González-Herrera, ...
Early Migration of Sarcocystis neurona in Ponies Fed Sporocysts (2007)
E. Elitsur, A. E. Marsh, S. M. Reed, J. P. Dubey, M. J. Oglesbee, J. E. Murphy, ...
Seroprevalence of Toxoplasma gondii in Pigs From Vietnam (2007)
Pigs are considered an important source of Toxoplasma gondii infection for humans. Antibodies to T. gondii were determined in serum samples from 587 pigs from Vietnam using the modified agglutination...
Seroprevalence of Toxoplasma gondii in Cats From St. Kitts, West Indies (2007)
L. Moura, P. Kelly, R. C. Krecek, J. P. Dubey
The prevalence of antibodies to Toxoplasma gondii was determined in sera from 106 domestic cats from St. Kitts, West Indies. Using a modified agglutination test, antibodies to this parasite were...
J. P. Dubey, J. A. Morales, N. Sundar, G. V. Velmurugan, G. Hernández-Mora, ...
Toxoplasma gondii infection in marine mammals is of interest because of mortality and mode of transmission. It has been suggested that marine mammals become infected with T. gondii oocysts washed...
DIVERSE AND ATYPICAL GENOTYPES IDENTIFIED IN TOXOPLASMA GONDII FROM DOGS IN SÃO PAULO, BRAZIL (2007)
Seroprevalence of Toxoplasma gondii in Pregnant Women and Cats in Grenada, West Indies (2006)
Sumita P. Asthana, Stanley H. Weiss, Richard Stephens, Thomas N. Denny, R. N. Sharma, ...
Seroprevalence of Toxoplasma gondii Antibodies in Humans From Rural Western Amazon, Brazil (2006)
G. T. Cavalcante, D. M. Aguiar, M. B. Labruna, L. R. Meireles, ...
Characterization of Toxoplasma gondii Isolates in Free-Range Chickens From Portugal (2006)
J. P. Dubey, S. Sousa, N. Canada, S. Meireles, ...
Effects of High-Pressure Processing on Toxoplasma gondii Tissue Cysts in Ground Pork (2006)
David S. Lindsay, Marina V. Collins, Daniel Holliman, George J. Flick, J. P. Dubey
CHARACTERIZATION OF TOXOPLASMA GONDII ISOLATES IN FREE-RANGE CHICKENS FROM AMAZON, BRAZIL (2006)
J. P. Dubey, Solange M. Gennari, Marcelo B. Labruna, Paula L. Marcet, ...
J. P. Dubey, A. Lenhart, C. E. Castillo, L. Alvarez, P. Marcet, C. Sreekumar, ...
The prevalence of Toxoplasma gondii, in free-ranging chickens is a good indicator of the prevalence of T. gondii oocysts in the soil because chickens feed from the ground. The prevalence of T. gondii...
CHARACTERIZATION OF TOXOPLASMA GONDII ISOLATES IN FREE-RANGE CHICKENS FROM ARGENTINA (2005)
J. P. Dubey, Paula L. Marcet, T. Lehmann
The prevalence of Toxoplasma gondii in free-ranging chickens is a good indicator of the prevalence of T. gondii oocysts in the soil because chickens feed from the ground. The prevalence of T. gondii...
Isolation and Molecular Characterization of Toxoplasma gondii From Chickens From Sri Lanka (2005)
J. P. Dubey, D. K. Ekanayake, C. Sreekumar, T. Lehmann
The prevalence of Toxoplasma gondii in free-ranging chickens is a good indicator of the prevalence of T. gondii oocysts in the soil because chickens feed from the ground. The prevalence of T. gondii...
David S. Lindsay, Taranjit Kaur, Sheila M. Mitchell, David G. Goodwin, Jeannine Strobl, J. P. Dubey
Groups of mice were infected with tachyzoites of the RH strain of Toxoplasma gondii, treated with the opioid analgesic buprenorphine, sodium sulfadiazine, a combination of buprenorphine and sodium...
J. P. Dubey, P. A. Fair, G. D. Bossart, D. Hill, R. Fayer, C. Sreekumar, ...
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%)...
J. P. Dubey, D. E. Hill, J. L. Jones, A. W. Hightower, E. Kirkland, J. M. Roberts, ...
The prevalence of viable Toxoplasma gondii was determined in 6,282 samples (2,094 each of beef, chicken, and pork) obtained from 698 retail meat stores from 28 major geographic areas of the United...
Prevalence of Antibodies to Neospora caninum in Wild Animals (2005)
Antibodies to Neospora caninum were determined in several species of wild animals in the United States by the Neospora agglutination test (NAT). Antibodies (NAT 1:40 or higher) were found in 5 of 249...
J. P. Dubey, B. Lopez, M. Alvarez, C. Mendoza, T. Lehmann
The prevalence of Toxoplasma gondii in free-ranging chickens is a good indicator of the prevalence of T. gondii oocysts in the soil because chickens feed from the ground. The prevalence of T. gondii...
J. P. Dubey, M. I. Bhaiyat, C. De Allie, R. N. Sharma, C. Sreekumar, ...
The prevalence of Toxoplasma gondii in free-range chickens is a good indicator of the prevalence of T. gondii oocysts in the soil because chickens feed from the ground. The prevalence of T. gondii in...
NEOSPORA CANINUM ANTIGENS DEFINED BY ANTIGEN-DEPENDENT BOVINE CD4+ T CELLS (2005)
Wenbin Tuo, Raymond H. Fetterer, William C. Davis, Mark C. Jenkins, J. P. Dubey
Neosporosis is an important cause of pregnancy loss in cattle worldwide. The objective of the present study was to identify Neospora caninum antigens as vaccine candidates using antigen-specific,...
Toxoplasmosis in a Hawaiian Monk Seal (Monachus schauinslandi ) (2005)
Shelley P. Honnold, Robert Braun, Dana P. Scott, C. Sreekumar, J. P. Dubey
Toxoplasma gondii infection in marine mammals is intriguing and indicative of contamination of the ocean environment with oocysts. T. gondii was identified in a Hawaiian monk seal (Monachus...
Effects of High Pressure Processing on Infectivity of Toxoplasma gondii Oocysts for Mice (2005)
David S. Lindsay, Marina V. Collins, Carly N. Jordan, George J. Flick, J. P. Dubey
High pressure processing (HPP) has been shown to be an effective non-thermal method of eliminating non-spore forming bacteria from a variety of food products. The shelf-life of the products is...
Clinical Muscular Sarcocystosis in a Dog (2005)
J. Chapman, M. Mense, J. P. Dubey
Muscular sarcocystosis is a rare infection in dogs. Clinical myositis associated with an unidentified species of Sarcocystis was diagnosed in an adult dog from Canada. There was granulomatous...
J. P. Dubey, S. Karhemere, E. Dahl, C. Sreekumar, A. Diabaté, K. R. Dabiré, ...
The prevalence of Toxoplasma gondii in free-ranging chickens (Gallus domesticus) is a good indicator of the prevalence of T. gondii oocysts in the soil because chickens feed from the ground. In the...
C. D. Sofaly, S. M. Reed, J. P. Dubey, M. J. Oglesbee, V. A. Lacombe, ...
Previous challenge studies performed at Ohio State University involved a transport-stress model where the study animals were dosed with Sarcocystis neurona sporocysts on the day of arrival. This...
J. P. Dubey, M. J. Oglesbee, C. D. Sofaly, A. E. Marsh, E. Elitsur, ...
Sarcocystis neurona and Sarcocystis fayeri infections are common in horses in the Americas. Their antemortem diagnosis is important because the former causes a neurological disorder in horses,...
TOXOPLASMOSIS IN NILGAIS (BOSELAPHUS TRAGOCAMELUS) AND A SAIGA ANTELOPE (SAIGA TATARICA) (2004)
Kamil Sedlák, Eva Bártová, Ivan Literák, Roman Vodička, J. P. Dubey
Three captive female nilgais (Boselaphus tragocamelus) either showed late-term abortion or their newborn calves died within 2 days of birth. Toxoplasma gondii DNA was demonstrated in the brain and...
J. P. Dubey, M. Z. Levy, C. Sreekumar, S. K. Shen, E. Dahl, ...
The prevalence of Toxoplasma gondii in free-ranging chickens is a good indicator of the prevalence of T. gondii oocysts in the soil because chickens feed from the ground. The prevalence of T. gondii...
ANTIGENIC EVALUATION OF A RECOMBINANT BACULOVIRUS-EXPRESSED SARCOCYSTIS NEURONA SAG1 ANTIGEN (2004)
G. D. Gupta, J. Lakritz, W. J. Saville, R. S. Livingston, J. P. Dubey, J. R. Middleton, ...
Sarcocystis neurona is the primary parasite associated with equine protozoal myeloencephalitis (EPM). This is a commonly diagnosed neurological disorder in the Americas that infects the central...
SURVIVAL OF TOXOPLASMA GONDII OOCYSTS IN EASTERN OYSTERS (CRASSOSTREA VIRGINICA) (2004)
David S. Lindsay, Marina V. Collins, Sheila M. Mitchell, Carly N. Wetch, Alexa C. Rosypal, George J. Flick, ...
Toxoplasma gondii has recently been recognized to be widely prevalent in the marine environment. It has previously been determined that Eastern oysters (Crassostrea virginica) can remove sporulated...
J. P. Dubey, P. G. Parnell, C. Sreekumar, E. Dahl, ...
Toxoplasma gondii isolates can be grouped into 3 genetic lineages. Type I isolates are considered virulent to outbred mice, whereas Type II and III isolates are not. In the present report, viable T....
J. P. Dubey, C. Sreekumar, K. B. Miska, D. E. Hill, D. S. Lindsay
Neospora caninum and Hammondia heydorni are morphologically and phylogenetically related coccidians that are found in dogs. Although there is serological evidence of N. caninum infection in the...
J. P. Dubey, I. T. Navarro, C. Sreekumar, E. Dahl, R. L. Freire, H. H. Kawabata, ...
Cats are important in the epidemiology of Toxoplasma gondii because they are the only hosts that can excrete environmentally resistant oocysts. The prevalence of T. gondii was determined in 58...