Parasitology

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Article Parasitology

The APOBEC3G gene rs2294367(C>G) variant is associated with HIV-1 infection in Moroccan subjects

Imane Belbacha, Meryem El Azzouzi, Rajae Bensghir, Kamal Filali Marhoum, Khadija Hajjout, El Mir Elharti, Khalid Sadki, Hicham Oumzil

Summary: This study investigates the association of three SNPs in the APOBEC3G gene with disease outcomes in Moroccan HIV-1 infected patients. The rs2294367 CG genotype is strongly associated with protection against HIV-1 infection, particularly in older individuals.

ACTA TROPICA (2024)

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Article Parasitology

Co-infestation caused by Goniodes pavonis (L., 1758) (Ischnocera: Goniodidae) and Goniocotes rectangulatus Nitzsch [In Giebel], 1866 on white Indian peafowl, Pavo cristatus L., 1758 (Galliformes: Phasianidaede) in Brazil

Ricardo Bassini-Silva, Ana Claudia Calchi, Ana Carolina Castro-Santiago, Marcio Junio Lima Siconelli, Marcos Rogerio Andre, Darci Moraes Barros-Battesti, Fernando de Castro Jacinavicius

Summary: This study reports the co-parasitism of Goniodes pavonis and Goniodes rectangulatus on white Pavo cristatus, and provides the first molecular information for Goniodes pavonis. It also reports a new Brazilian locality for Goniodes pavonis and the first record of Goniodes rectangulatus in Brazil.

VETERINARY PARASITOLOGY- REGIONAL STUDIES AND REPORTS (2024)

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Article Parasitology

Toxoplasmosis outbreak caused by north American genotypes in captive black-tufted marmosets in southern Brazil

Lucas Marian, Jessica Aline Withoeft, Maria Augusta Fornara, Gustavo Willian Pandolfo, Fagner D. 'ambroso Fernandes, Fernanda Silveira Flores Vogel, Milene Pugliese Zapala, Renata Assis Casagrande

Summary: This study describes an outbreak of toxoplasmosis in captive Callithrix penicillata in Southern Brazil. The infected marmosets showed abnormal pathological features in the liver, spleen, and lungs, and Toxoplasma gondii was detected in multiple organs. The strains of the parasite were closely related to those found in non-primate species in the United States.

VETERINARY PARASITOLOGY- REGIONAL STUDIES AND REPORTS (2024)

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Article Parasitology

The effect of El Nino and La Nina episodes on the existing niche and potential distribution of vector and host species of American Cutaneous Leishmaniasis

Julian Avila-Jimenez, Juan David Gutierrez, Mariano Altamiranda-Saavedra

Summary: Leishmaniasis is a parasitic disease transmitted to humans by sandfly vectors and vertebrate hosts. This study used ecological niche modeling to investigate the potential distribution of host and vector species associated with cutaneous leishmaniasis transmission, revealing different distribution patterns under varying climatic conditions.

ACTA TROPICA (2024)

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Article Parasitology

Biomarker of Anopheles exposure in Ghanaian children with hemoglobin S and C

Berlin Londono-Renteria, Zakaria Seidu, Helena Lamptey, Michael F. Ofori, Lars Hviid, Mary Lopez-Perez

Summary: Heterozygous carriers of HbAS and HbAC have a reduced risk of severe malaria, but not immunity against Plasmodium falciparum infection. Antibody levels against gSG6-P1 peptide in Anopheles mosquito saliva can serve as a serological biomarker for exposure to Plasmodium infection. This study highlights the importance of studying the role of hemoglobinopathies in malaria transmission for improving control interventions.

ACTA TROPICA (2024)

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Article Parasitology

High detection frequency and genetic diversity of porcine circovirus 3 (PCV-3) in Namibian backyard farms and warthogs

Umberto Molini, Lauren M. Coetzee, Vernon Christians, Maria Y. Hemberger, Bernard Chiwome, Maria Amukwaya, Siegfried Khaiseb, Giovanni Cattoli, William G. Dundon, Giovanni Franzo

Summary: Porcine circovirus 3 (PCV-3) has been reported globally since its first identification in 2015. Limited data on PCV-3 in Africa led to a study in Namibia, which found a high prevalence of PCV-3 in backyard piggeries, but not in commercial farms with higher biosecurity measures. The source of viral introduction and factors such as semen importation, feeding backyard pigs with human food waste, pig exchanges, and wildlife movements may be involved in the dispersal of PCV-3 within Namibia. Further studies are needed to understand the epidemiology and impact of PCV-3 on pig productivity and wildlife health.

ACTA TROPICA (2024)

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Article Infectious Diseases

Exploring the influence of host community composition on the outbreak potential of Anaplasma phagocytophilum and Borrelia burgdorferi s.l.

Nannet D. Fabri, Hans Heesterbeek, Joris P. G. M. Cromsigt, Frauke Ecke, Hein Sprong, Lonneke Nijhuis, Tim R. Hofmeester, Nienke Hartemink

Summary: In many parts of the northern hemisphere, different species of deer, small mammals, and birds coexist and their composition can strongly influence the outbreak potential of tick-borne pathogens. This study investigates how the abundance and composition of vertebrate communities affect the basic reproduction number R0 of tick-borne pathogens, and shows that species composition plays a substantial role in the outbreak potential of tick-borne diseases.

TICKS AND TICK-BORNE DISEASES (2024)

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Article Parasitology

Molecular survey of hemoplasmas in asymptomatic vicunas (Vicugna vicugna) from the Pampa Galeras Barbara D'Achille National Reserve in Peru

Luis A. Gomez-Puerta, Juan Olazabal, Santiago Paredes, Juan Lopez, Miguel Anampa, Angelica Mondragon, Ana Vargas-Calla, Hugo Castillo

Summary: This study reports the first detection of Candidatus M. haemolamae infection in vicunas from the Pampa Galeras National Reserve in Peru, using molecular diagnosis. Tick-infested vicunas had a higher likelihood of being infected with Candidatus M. haemolamae compared to tick-free vicunas. Gender and age were not associated with infection.

ACTA TROPICA (2024)

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Article Infectious Diseases

Babesia negevi infection in dogs and response to treatment

Harold Salant, Yaarit Nachum-Biala, Doni Zivotofsky, Tsachi Even Tzur, Gad Baneth

Summary: This study describes the presentation, clinical signs, parasitemia levels, laboratory findings and treatment of dogs infected with B. negevi. Treatment with imidocarb dipropionate was helpful for recovery from clinical disease but did not facilitate parasite elimination, and it is therefore recommended to treat canine B. negevi infection with the combination of atovaquone and azithromycin.

TICKS AND TICK-BORNE DISEASES (2024)

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Article Infectious Diseases

Tick-borne infections in wolves from an expanding population in Eastern Europe

Aleksander Wymazal, Sabina Nowak, Robert W. Myslajek, Anna Bajer, Renata Welc-Faleciak, Maciej Szewczyk, Iga Kwiatkowska, Kinga M. Stepniak, Michal Figura, Agnieszka Kloch

Summary: The wolf population in Central and Eastern Europe has been increasing, but their frequent contacts with humans make them a potential zoonotic reservoir. This study found a high prevalence of tick-borne pathogens in free-ranging wolves from Poland.

TICKS AND TICK-BORNE DISEASES (2024)

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Article Parasitology

Spatial analysis of human and livestock anthrax in Lai Chau province, Vietnam (2004-2021)

Tan Luong, Do Kien Tran, Anh Hung Pham, Thi Thu-Ha Hoang, Van Khang Pham, Quang Thai Pham, Thi Mai Hung Tran, Minh Hoa Luong, Thanh Long Pham, Jason K. Blackburn

Summary: This study examined the epidemiology of anthrax in Lai Chau province, Vietnam, using historical data. Spatial clusters of human and livestock anthrax were identified, and the characteristics of the disease were described. The study found that there were distinct differences between the high-risk areas for human and livestock anthrax, and most human cases occurred during specific seasons. Additionally, the decrease in livestock anthrax vaccine coverage was associated with an increase in disease incidence.

ACTA TROPICA (2024)

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Article Parasitology

Epidemiological profile and genetic resistance of Neisseria gonorrhoeae infection in women in a poor region of Sao Paulo, Brazil

Gabriela Martinez Moura Tavares, Hannar Angelica de Melo Alverga, Estela Moraes Felix, Giovana de Oliveira Dichman, Gabriel Monteiro Pinheiro, Yara Juliano, Priscila Paruci, Dennis Minoru Fujita, Lucas Melo Neves, Marina Tiemi Shio, Luiz Henrique da Silva Nali

Summary: This study investigated the frequency of N. gonorrhoeae infection in women in a poor area of São Paulo and found that most of the strains detected showed resistance to one or more antimicrobials.

ACTA TROPICA (2024)

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Article Parasitology

Prevalence of zoonotic (brugian) filariasis in Asia: A proportional meta-analysis

Cho Naing, Maxine A. Whittaker, Wong Siew Tung, Htar Aung, Joon Wah Mak

Summary: This study aimed to estimate the prevalence of zoonotic brugian filariasis in animals and compare it with the prevalence in humans in the same area. The findings suggest that cats, dogs, and leaf-eating monkeys may serve as potential reservoirs for human brugian filariasis.

ACTA TROPICA (2024)

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Article Parasitology

Survey on tick infestation in stray dogs in localities of Malaysia

Lye Yi Yan, Tan Li Peng, Mohammed Dauda Goni

Summary: This study investigated the occurrence and intensity of ticks on stray dogs, and identified the preferred attachment sites for ticks. The findings highlight the importance of implementing tick control programs for stray dogs.

VETERINARY PARASITOLOGY- REGIONAL STUDIES AND REPORTS (2024)

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Article Parasitology

Epidemiology of Neospora caninum and Toxoplasma gondii infection in venison from Aguascalientes, Mexico

Adan Guido-Torres, Leticia Medina-Esparza, Carlos Cruz-Vazquez, Luis Fernando Cisneros-Guzman, Miguel Ramos-Parra

Summary: This study aimed to estimate the seroprevalence of Neospora caninum and Toxoplasma gondii in venison from Aguascalientes, Mexico, and to identify their possible association with some risk factors. The results showed that the venison populations included in the study are living in an environment highly contaminated with oocysts excreted by the definitive host.

VETERINARY PARASITOLOGY- REGIONAL STUDIES AND REPORTS (2024)

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Article Parasitology

Unusual parasitoses in urban dogs: Urinary capillariosis and linguatulosis, cases report

Dimitris Dimzas, Simone Morelli, Mariasole Colombo, Angela Di Cesare, Dimitrios Martinis, Georgios Dourdas, Anastasia Diakou

Summary: Parasitic diseases caused by uncommonly diagnosed parasites pose a threat to the health of companion animals in urban environments. This study describes two cases of uncommon parasitic infections in dogs living in the city of Athens, Greece. These infections, including urinary capillariosis and linguatulosis, are rare in owned dogs living in cities, but have zoonotic relevance.

VETERINARY PARASITOLOGY- REGIONAL STUDIES AND REPORTS (2024)

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Article Parasitology

Molecular Survey of Anaplasma capra in Goats in Van Province, Eastern Turkiye

Bekir Oguz, M. Serdar Deger, Ebtsam Al-Olayan, Saeed El-Ashram

Summary: This study reports the first detection of A. capra infection in goats in the Van province of Eastern Turkiye. Molecular analysis revealed a close relationship between the Eastern Turkiye isolate and A. capra isolates from wild and domestic ruminants in France, Turkiye, and Kyrgyzstan, forming a distinct clade.

ACTA PARASITOLOGICA (2023)

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Article Infectious Diseases

Can incorporating genotyping data into efficacy estimators improve efficiency of early phase malaria vaccine trials?

Gail E. Potter, Viviane Callier, Biraj Shrestha, Sudhaunshu Joshi, Ankit Dwivedi, Joana C. Silva, Matthew B. Laurens, Dean A. Follmann, Gregory A. Deye

Summary: This study investigated two alternative vaccine efficacy endpoints, VEmolFOI and VEC, incorporating genotyping information, and found that genotyping information can enhance the statistical power of vaccine efficacy evaluation.

MALARIA JOURNAL (2023)

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Article Infectious Diseases

Anopheles gambiae s.s. resistance to pyrethroids and DDT in semi-urban and rural areas of the Moyen-Ogooue Province, Gabon

Stravensky Terence Boussougou-Sambe, Barclaye Ngossanga, Ange Gatien Doumba-Ndalembouly, Lynda Nouage Boussougou, Tamirat Gebru Woldearegai, Fabrice Mougeni, Thierry Ndong Mba, Jean Ronald Edoa, Jean Claude Dejon-Agobe, Parfait Awono-Ambene, Peter G. Kremsner, Hilaire M. Kenguele, Steffen Borrmann, Benjamin Mordmueller, Ayola Akim Adegnika

Summary: This study provides evidence of widespread resistance to pyrethroids in An. gambiae s.s., the main malaria vector in the Moyen-Ogooue Province. Further investigation of the mechanisms underlining the resistance of An. gambiae s.s. to pyrethroids is needed to implement appropriate insecticide resistance management strategies.

MALARIA JOURNAL (2023)

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Article Parasitology

Performance evaluation of protocols for Taenia saginata and Ascaris suum egg recovery from the house fly's gastrointestinal tract and exoskeleton

Sophie De Bock, Luc Duchateau, Bruno Levecke, Sarah Gabriel

Summary: Effective and easy-to-use protocols for the recovery of Taenia saginata and Ascaris suum eggs from the gastrointestinal tract and exoskeleton of the synanthropic house fly, Musca domestica, were developed and validated. These protocols can help in investigating the role of flies as potential transmitters of parasite eggs in laboratory and field settings.

PARASITES & VECTORS (2023)

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