Resultados de Búsqueda por Autor

1

artículo

Co-infection with Bartonella bacilliformis and Mycobacterium spp. in a coastal region of Peru

Publicado por
Silva-Caso W., Mazulis F., Weilg C., Aguilar-Luis M.A., Sandoval I., Correa-Nuñez G., Li D., Song X., Liu Q., Del Valle-Mendoza J.

Publicado 2017

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Objective: This study investigated an outbreak of Bartonellosis in a coastal region in Peru.Results: A total of 70 (n = 70) samples with clinical criteria for the acute phase of Bartonellosis and a positive peripheral blood smear were included. 22.85% (n = 16) cases of the samples were positive for Bartonella bacilliformis by PCR and automatic sequencing. Of those positive samples, 62.5% (n = 10) cases were positive only for B. bacilliformis and 37.5% (n = 6) cases were positive to both Mycobacterium spp. and B. bacilliformis. The symptom frequencies were similar in patients diagnosed with Carrion's disease and those co-infected with Mycobacterium spp. The most common symptoms were headaches, followed by malaise and arthralgia.

2

artículo

Molecular identification of Bartonella bacilliformis in ticks collected from two species of wild mammals in Madre de Dios: Peru

Publicado por
Del Valle-Mendoza J., Rojas-Jaimes J., Vásquez-Achaya F., Aguilar-Luis M.A., Correa-Nuñez G., Silva-Caso W., Lescano A.G., Song X., Liu Q., Li D.

Publicado 2018

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ObjectiveTo study the presence of Bartonella bacilliformis in ticks collected from two wild mammals in Madre de Dios, Peru.ResultsA total of 110 ticks were collected. Among the 43 Amblyomma spp. extracted from the 3 Tapirus terrestris only 3 were positive for B. bacilliformis. In addition, 12 out of the 67 Rhipicephalus (Boophilus) microplus obtained from the 3 Pecari tajacu were positive for B. bacilliformis. For the first time B. bacilliformis have been detected in arthropods other than Lutzomyia spp. Further studies are required to elucidate the possible role of ticks in the spread of South American Bartonellosis.

3

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Molecular detection and clinical characteristics of Bartonella bacilliformis, Leptospira spp., and Rickettsia spp. in the Southeastern Peruvian Amazon basin

Publicado por
Ricapa-Antay F., Diaz-Melon K., Silva-Caso W., Del Valle L.J., Aguilar-Luis M.A., Vasquez-Achaya F., Palomares-Reyes C., Weilg P., Li D., Manrique C., Del Valle-Mendoza J.

Publicado 2018

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Acute febrile illness (AFI) represent a significant health challenge in the Peruvian Amazon basin population due to their diverse etiologies and the unavailability of specific on-site diagnostic methods, resulting in underreporting of cases. In Peru, one of the most endemic regions to dengue and leptospirosis is Madre de Dios, a region also endemic to emergent bacterial etiologic agents of AFI, such as bartonellosis and rickettsiosis, whose prevalence is usually underreported.We aimed to molecularly identify the presence of Leptospira spp., Bartonella bacilliformis, and Rickettsia spp. by Polymerase Chain Reaction in serum samples from patients with AFI from Puerto Maldonado-Madre de Dios in Peru.

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artículo

Utilizing Multilingual Methods and Rapid Analysis for Global Qualitative Research During a Pandemic

Publicado por
Graetz, DE, Sniderman, E, Villegas, C, Ragab, I, Laptsevich, A, Maliti, B, Naidu, G, Zhang, H, Gassant, P, Nunes, L, Arce, D, Vasquez, JM, Arora, RS, Alcasabas, AP, Rusmawatiningtyas, D, Raza, MR, Hamid, SA, Velasco, P, Kambugu, J, Vinitsky, A, Bolous, NS, Haidar, CE, Bihannic, L, Sa da Bandeira, D, Wang, JX, Li, D, Graca, F, Vasilyeva, A, Lesmana, H, Galindo, CR, Agulnik, A, Moreira, DC

Publicado 2022

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Historically, qualitative research has complemented quantitative biologic and epidemiologic studies to provide a more complete understanding of pandemics. The COVID-19 pandemic has generated unique and novel challenges for qualitative researchers, who have embraced creative solutions including virtual focus groups and rapid analyses to continue their work. We present our experience conducting a multilingual global qualitative study of healthcare resilience among teams of pediatric oncology professionals during the COVID-19 pandemic. We provide an in-depth description of our methodology and an analysis of factors we believe contributed to our study’s success including our use of technology, engagement of a large multilingual team, global partnerships, and framework-based rapid analysis. We hope these techniques may be useful to qualitative researchers conducting studies during the curre...