Read by QxMD icon Read

Vector Borne and Zoonotic Diseases

Lorraine D Rodriguez-Rivera, Kevin J Cummings, Isaac McNeely, Jan S Suchodolski, Andrea V Scorza, Michael R Lappin, Brian T Mesenbrink, Bruce R Leland, Michael J Bodenchuk
The population size and geographic range of feral pigs in the United States are rapidly expanding. Nevertheless, the role of this invasive species in the ecology and transmission of zoonotic enteric pathogens is poorly understood. Our objectives were to describe the prevalence and diversity of Cryptosporidium and Giardia shedding among feral pigs throughout Texas and to identify risk factors for infection. Fecal samples were collected from feral pigs in Texas from February 2014 through May 2015. Cryptosporidium oocysts and Giardia cysts were detected using a direct immunofluorescence assay, and genotyping of positive samples was performed...
October 20, 2016: Vector Borne and Zoonotic Diseases
Jing-Jing Khoo, Fang-Shiang Lim, Fezshin Chen, Wai-Hong Phoon, Chee-Sieng Khor, Brian L Pike, Li-Yen Chang, Sazaly AbuBakar
Recent studies have shown that ticks harbor Coxiella-like bacteria, which are potentially tick-specific endosymbionts. We recently described the detection of Coxiella-like bacteria and possibly Coxiella burnetii in ticks found from rural areas in Malaysia. In the present study, we collected ticks, including Haemaphysalis bispinosa, Haemaphysalis hystricis, Dermacentor compactus, Dermacentor steini, and Amblyomma sp. from wildlife and domesticated goats from four different locations in Malaysia. Coxiella 16s rRNA genomic sequences were detected by PCR in 89% of ticks tested...
October 20, 2016: Vector Borne and Zoonotic Diseases
Mohamed M El-Diasty, Heba A Ahmed, Ashraf E Sayour, Fatma I El Hofy, Asmaa B M B Tahoun, Saleh M Shafik
The objective of the present study was to estimate the seroprevalence of Brucella spp. in humans and cattle at Sharkia Governorate, Egypt. In addition, identification of Brucella spp. in milk samples by PCR and culture with the evaluation of the risk factors associated with Brucella spp. seroprevalence in humans were carried out. Overall, the seroprevalence of Brucella antibodies in the examined cattle was 23.8%, while in human participants it was 21%. The examination of 205 milk samples using PCR revealed that 6...
October 18, 2016: Vector Borne and Zoonotic Diseases
Gamou Fall, Martin Faye, Manfred Weidmann, Marco Kaiser, Anne Dupressoir, El Hadj Ndiaye, Yamar Ba, Mawlouth Diallo, Ousmane Faye, Amadou Alpha Sall
West Nile virus (WNV) is an emerging arbovirus, circulating worldwide between birds and mosquitoes, which impacts human and animal health. Since the mid-1990s, WNV outbreaks have emerged in Europe and America and represent currently the primary cause of encephalitis in the United States. WNV exhibits a great genetic diversity with at least eight different lineages circulating in the world, and four (1, 2, Koutango, and putative new) are present in Africa. These different WNV lineages are not readily differentiated by serology, and thus, rapid molecular tools are required for diagnostic...
October 6, 2016: Vector Borne and Zoonotic Diseases
Tariq A Madani, El-Tayb M E Abuelzein, Esam I Azhar, Hussein M S Al-Bar, Ahmed M Hassan, Thomas G Ksiazek
BACKGROUND: Alkhumra hemorrhagic fever virus (AHFV) is a flavivirus that was discovered in 1995 in Saudi Arabia. Clinical manifestations of AHFV infection include hemorrhagic fever, hepatitis, and encephalitis with a reported mortality rate as high as 25%. There are no published data on the growth characteristics of AHFV in mammalian cell lines. The objective of this study was to examine the ability of AHFV to grow and propagate in four of the commonly used mammalian cell culture lines and to determine the virus growth curve characteristics in each...
October 6, 2016: Vector Borne and Zoonotic Diseases
Lynn M Osikowicz, Sarah A Billeter, Maria Fernanda Rizzo, Michael P Rood, Ashley N Freeman, Joseph E Burns, Renjie Hu, Phalasy Juieng, Vladimir Loparev, Michael Kosoy
We investigated the prevalence of Bartonella washoensis in California ground squirrels (Otospermophilus beecheyi) and their fleas from parks and campgrounds located in seven counties of California. Ninety-seven of 140 (69.3%) ground squirrels were culture positive and the infection prevalence by location ranged from 25% to 100%. In fleas, 60 of 194 (30.9%) Oropsylla montana were found to harbor Bartonella spp. when screened using citrate synthase (gltA) specific primers, whereas Bartonella DNA was not found in two other flea species, Hoplopsyllus anomalus (n = 86) and Echidnophaga gallinacea (n = 6)...
October 5, 2016: Vector Borne and Zoonotic Diseases
Aleksandra Cybulska, Aleksandra Kornacka, Justyna Bień, Katarzyna Goździk, Elżbieta Kalisińska, Natalia Łanocha-Arendarczyk, Halina Budis, Bogumiła Pilarczyk, Władysław Cabaj, Bożena Moskwa
Trichinellosis is one of the most widespread parasitic zoonoses. Trichinella Owen, 1835 nematodes are found in pigs, horses, and humans in the domestic cycle, and in many carnivores and omnivores in the sylvatic cycle, such as wild boars, red foxes, raccoon dogs, and wolves. Carnivores are known to be involved in the circulation of Trichinella nematodes and they act as a reservoir in the sylvatic environment. The aim of this study was to determine the occurrence of Trichinella spp. infection in red foxes in Poland...
October 5, 2016: Vector Borne and Zoonotic Diseases
John V Stokes, Gail M Moraru, Chelsea McIntosh, Evangel Kummari, Keiko Rausch, Andrea S Varela-Stokes
: Tick-borne borreliae include Lyme disease and relapsing fever agents, and they are transmitted primarily by ixodid (hard) and argasid (soft) tick vectors, respectively. Tick-host interactions during feeding are complex, with host immune responses influenced by biological differences in tick feeding and individual differences within and between host species. One of the first encounters for spirochetes entering vertebrate host skin is with local antigen-presenting cells, regardless of whether the tick-associated Borrelia sp...
September 28, 2016: Vector Borne and Zoonotic Diseases
Toomas Kramarenko, Mati Roasto, Mihkel Mäesaar, Antonella Maugliani, Rosangela Tozzoli, Kadrin Meremäe, Terje Elias, Maiu Kuningas
Shiga toxin-producing Escherichia coli (STEC) O157:H7 was isolated from 30 (4%) of 744 cattle hide swab samples collected at Estonian slaughterhouses within a 3-year monitoring program of zoonotic pathogens. The isolates were characterized by determining the presence of STEC main virulence factors, the antimicrobial resistance profiles, and the genetic relatedness by pulsed-field gel electrophoresis (PFGE). Thirteen strains carried the stx2 gene alone and 17 both the stx1 and stx2 genes. The most frequently detected stx subtype was stx2c, occurring alone (n = 12) or in combination with subtype stx1a (n = 13)...
September 22, 2016: Vector Borne and Zoonotic Diseases
Fernando Martínez-Hernández, Osvaldo López-Díaz, Rafael Bello-Bedoy, Guiehdani Villalobos, Claudia I Muñoz-García, Ricardo Alejandre-Aguilar, Alex Córdoba-Aguilar, Ana E Gutiérrez-Cabrera, Gerardo Suzán, Claudia Villanueva-García, Lilia M Gama-Campillo, Mariela T Díaz-Negrete, Emilio Rendón-Franco
A key step in the dynamics of vector-borne diseases is the role of seasonality. Trypanosoma cruzi is a protozoan that causes Chagas disease. Some wild mammals are considered natural hosts, yet not all mammals show the same response to infection. We explored the effect of T. cruzi on blood parameters in two mammal carnivores, coati (Nasua narica) and raccoon (Procyon lotor), that were naturally infected in summer and winter seasons. The study was carried out in the Zoological Park "Parque Museo de la Venta," in Southeastern Mexico...
September 22, 2016: Vector Borne and Zoonotic Diseases
Laís Moraes Paiz, Maria Rita Donalisio, Virgínia Bodelão Richini-Pereira, Gabriela Motoie, Claudio Luiz Castagna, José Eduardo Tolezano
There is a growing concern about the participation of wild hosts and reservoirs in the epidemiology of leishmaniasis, particularly within the context of increasingly frequent environmental changes and the expansion of the One Health concept. This work is a molecular research of infection by Leishmania spp. among the wildlife of an environmentally protected area located in the municipality of Campinas, São Paulo, Brazil. The studied area has a history of intense environmental changes, with notifications of human cases of cutaneous leishmaniasis in the 1990s, and a focus of canine visceral leishmaniasis since 2009...
September 15, 2016: Vector Borne and Zoonotic Diseases
Sandra Ramos-Lopez, Ma Fabiola León-Galván, Mariana Salas-Alatorre, Alma A Lechuga-Arana, Mauricio Valencia-Posadas, Abner J Gutiérrez-Chávez
Dirofilaria repens is the causative zoonotic agent of subcutaneous dirofilariosis. Although the American continent is considered currently free of D. repens infections, in the past few years there have been some reports suggesting the presence of this agent in the Americas. In Guanajuato, Mexico, there is a report of the presence of D. repens. To determine whether this parasite is really present in Guanajuato, a total of 177 EDTA blood samples from dogs were tested using the modified Knott's technique. Using this technique, we found 15 positive samples, which were then analyzed using the PCR technique, with a panfilarial set of primers and a specific primer pair for D...
September 15, 2016: Vector Borne and Zoonotic Diseases
Harrison Ndetan, Uwemedimbuk S Ekanem, Mohammed F Faramawi, Irene P Chedjieu, Susan Thapa, Bianca K Johnson, Kemmian D Johnson, Salima S Surani, Eric S Johnson
OBJECTIVE: To study mortality from nonmalignant diseases in subjects with high exposure to transmissible agents present in animals used for food, and in their raw or inadequately cooked products. METHODS: Mortality was compared in a cohort of meat handlers in slaughtering and processing plants with that of the U.S. general population. RESULTS: Excess mortality was observed for conditions known to be associated with infections-these include, septicemia, chronic nephritis, diseases of the kidney and ureter, diseases of the pancreas, cirrhosis of the liver, acute and subacute endocarditis, acute rheumatic fever, functional diseases of the heart, aortic aneurysm, intracranial and intraspinous abscess, and meningitis...
September 1, 2016: Vector Borne and Zoonotic Diseases
Josué Plata-Luis, Pilar Foronda, Aaron Martín-Alonso, Carlos Feliu, Joana Alves, Horacio Gil, Basilio Valladares
Leptospirosis is an important worldwide zoonotic disease that can infect both animals and humans. In most cases, leptospirosis is a nonspecific self-limiting illness, but some patients can develop a severe form with a high mortality. This study was carried out in Santiago Island, Cape Verde, in 2012-2013. A total of 62 wild rodents (Rattus rattus and Mus domesticus) were analyzed. The lipL32 gene, present only in pathogenic Leptospira spp., was amplified by PCR, and 16 samples were positive (25.8%). In both rodent species, Leptospira interrogans was identified...
August 2, 2016: Vector Borne and Zoonotic Diseases
Frederique B Schulte Fischedick, Matthew J Stuckey, Alvaro Aguilar-Setién, Hayde Moreno-Sandoval, Guillermo Galvez-Romero, Mónica Salas-Rojas, Nidia Arechiga-Ceballos, Paul A M Overgaauw, Rickie W Kasten, Bruno B Chomel
Bartonella species are highly endemic among wild rodents in many parts of the world. Blood and/or blood clot cultures from 38 rodents, including 27 Yucatan deer mouse (Peromyscus yucatanicus), 7 Gaumer's spiny pocket mouse (Heteromys gaumeri), 2 black rats (Rattus rattus) and 2 big-eared climbing rats (Ototylomys phyllotis) captured near Merida, Yucatan, Mexico, led to the isolation in 3-4 days of small gram-negative bacilli, which were identified as Bartonella spp. based on colony morphology. DNA extraction and PCR testing were also performed from heart samples of 35 of these 38 rodents...
October 2016: Vector Borne and Zoonotic Diseases
Katherina A Vizcaychipi, Miguel Rinas, Lucia Irazu, Adriana Miyagi, Carina F Argüelles, Karen E DeMatteo
Wildlife remains an important source of zoonotic diseases for the most vulnerable groups of humans, primarily those living in rural areas or coexisting with forest. The Upper Paraná Atlantic forest of Misiones, Argentina is facing ongoing environmental and anthropogenic changes, which affect the local biodiversity, including the bush dog (Speothos venaticus), a small canid considered Near Threatened globally and Endangered locally. This project aimed to expand the knowledge of zoonotic parasites present in the bush dog and the potential implications for human health and conservation medicine...
October 2016: Vector Borne and Zoonotic Diseases
Shannon Meadows, Andria Jones-Bitton, Scott A McEwen, Jocelyn Jansen, Samir N Patel, Catherine Filejski, Paula Menzies
Coxiella burnetii is a zoonotic bacterium that causes Q fever, a potentially severe disease of humans. The objectives of this study were to determine the seroprevalence and risk factors for C. burnetii exposure in sheep and goat farm workers in Ontario, Canada. Between August 2010 and March 2012, 172 farm workers from 78 sheep and goat farms were surveyed regarding demographics, lifestyle, farm practices, and medical history. Sera from these people were collected and analyzed for Q fever titers using the immunofluorescence assay...
October 2016: Vector Borne and Zoonotic Diseases
Aleksandar Potkonjak, Gabriela Kleinerman, Ricardo Gutiérrez, Sara Savić, Vuk Vračar, Yaarit Nachum-Biala, Aleksandar Jurišić, Alicia Rojas, Aleksandra Petrović, Ivana Ivanović, Shimon Harrus, Gad Baneth
Lyme borreliosis is the most common tick-borne infectious disease in Eurasia. Borrelia miyamotoi is the only known relapsing fever Borrelia group spirochete transmitted by Ixodes species. The aim of this study was to investigate the presence of Lyme Borrelia spp. and relapsing fever Borrelia spp. in Ixodes ricinus ticks collected from dogs and the vegetation from different parts of Vojvodina, Serbia. A total of 71 Ixodes ricinus ticks were collected and screened for the presence of Lyme Borrelia spp. group and relapsing fever Borrelia spp...
October 2016: Vector Borne and Zoonotic Diseases
Marta Arsuaga, Luis M Gonzalez, Cheryl A Lobo, Fernando de la Calle, Jose M Bautista, Isabel G Azcárate, Sabino Puente, Estrella Montero
Babesiosis is an emerging zoonosis now found in several areas of the world. Using PCR and indirect immunofluorescence assay, we have diagnosed the first case of human babesiosis caused by Babesia microti in Spain. Diagnosis was delayed because of the nonspecific clinical symptoms that occurred in an immunocompetent patient.
October 2016: Vector Borne and Zoonotic Diseases
Yan-Jang S Huang, Victoria B Ayers, Amy C Lyons, Isik Unlu, Barry W Alto, Lee W Cohnstaedt, Stephen Higgs, Dana L Vanlandingham
Recent reports of Zika virus (ZIKV) isolates from Culex species mosquitoes have resulted in concern regarding a lack of knowledge on the number of competent vector species for ZIKV transmission in the new world. Although observations in the field have demonstrated that ZIKV isolation can be made from Culex species mosquitoes, the detection of ZIKV in these mosquitoes is not proof of their involvement in a ZIKV transmission cycle. Detection may be due to recent feeding on a viremic vertebrate, and is not indicative of replication in the mosquito...
October 2016: Vector Borne and Zoonotic Diseases
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"