Publications by authors named "Juliana Guerra"

Paracoccidioidomycosis (PCM) is an endemic fungal disease that occurs in Latin America and primarily affects humans. The disease has been rarely documented in non-human primates. This report details a disseminated and fatal case of PCM caused by Paracoccidioides brasiliensis in a western black-handed tamarin (Saguinus niger) under human care.

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Emerald tree boas (Corallus batesii) are boids that in situ occurs in forested habitats in the Amazon Basin. The mycobacterial species can infect reptiles but the species Mycolicibacterium fortuitum was identified only in feces samples of ex situ Python regius and was isolated from granulomatous lesions of an ex situ Iguana iguana when was still part of the genus Mycobacterium. This article aims to report a mycobacteria infection case in a female Corallus batesii kept under human care.

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Article Synopsis
  • Neotropical primates, like brown howler monkeys, usually don't show signs of active tuberculosis (TB).
  • An injured brown howler monkey was discovered in an urban area, and medical examinations showed inflammation in its lungs, lymph nodes, and liver.
  • Testing confirmed the monkey was infected with Mycobacterium tuberculosis, emphasizing the need for TB monitoring in nonhuman primates.
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A senile male black capuchin monkey (Sapajus nigritus) kept under human care in a Zoo was found dead after 2 weeks presenting signals of weight loss and hyporexia. Histopathological revealed a necrotizing encephalitis. Although it was not observed microscopically, Sarcocystis sp infection was detected in brain tissue from molecular assays.

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Yellow Fever (YF) is a viral arbovirosis of Public Health importance. In Brazil, surveillance is focused mainly on detecting epizootic events of Platyrrhini. Herein, we compared the detection and phylogenetic analysis of YF virus in two neotropical primates (NTP), a Callithrix detected in the previous epidemic period (2016-2020), and a Callicebus nigrifons, showing a new introduction of YF in 2023.

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Background: The Vieira's titi monkey (Plecturocebus vieirai) was recently described and characterized as endemic to Brazil. According to the IUCN red list, this species is classified as critically endangered (CR). At the date of the publication of this manuscript, there are no published data on the health aspects of this species.

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Opossums are considered resistant to rabies. Nonhematophagous bats are reservoirs of rabies in urban areas of South America. We analyzed bats and opossums tested for rabies during 2021 in a highly urbanized city in Brazil to understand spillover in an urban setting.

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Brazil was one of the most affected countries by the COVID-19 pandemic. Instituto Adolfo Lutz (IAL) is the reference laboratory for COVID-19 in São Paulo, the most populous state in Brazil. In April 2020, a secondary diagnostic pole named IAL-2 was created to enhance IAL's capacity for COVID-19 diagnosis.

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Article Synopsis
  • * Out of 242 examined primates, 25.6% tested positive for herpesvirus, with varying prevalence among different species and a significant correlation with adult age and human care.
  • * The results emphasize the need for ongoing monitoring of herpesvirus infections in these primate populations to prevent future outbreaks and protect both wildlife and human health.
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This report presents anatomo-histopathological, immunohistochemical and molecular analyses of an asymptomatic female dog naturally infected with Leishmania (Leishmania) infantum and her four pups. In addition to routine serological tests, the mother's positivity was confirmed by real-time PCR of a bone marrow sample; the placenta and ovaries, however, were negative with the same analysis. The pups presented no positivity in any of the techniques used.

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New-generation sequencing (NGS) techniques have brought the opportunity for genomic monitoring of several microorganisms potentially relevant to public health. The establishment of different methods with different mechanisms provides a wide choice, taking into account several aspects. With that in mind, the present aim of the study was to compare basic genomic sequencing metrics that could potentially impact genotyping by nanopores from Oxford Nanopore Technologies and by synthesis from Illumina in clinical samples positive for Chikungunya (CHIKV).

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A 12-year-old Saanen goat presented with a history of hyporexia and sudden recumbency. Euthanasia was indicated due to suspicion of hepatic neoplasia associated with senility. Necropsy revealed generalized oedema and increased liver size and weight (33 × 38 × 17 cm and 10.

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Acute respiratory distress syndrome (ARDS) is a life-threatening condition due to acute lung injury (ALI), characterized by rapid-onset respiratory failure, leading to the clinical manifestations of poor lung compliance, severe hypoxemia, and dyspnea. ARDS/ALI has many causes, most commonly related to infections (sepsis, pneumonia), traumas, and multiple transfusions. The objective of this study is to assess the performance of postmortem anatomopathological examination in identifying etiological agents associated with ARDS or ALI in deceased patients from the State of São Paulo from 2017 to 2018.

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Ulcerative Colitis (UC) is an inflammatory disease characterized by colonic mucosal lesions associated with an increased risk of carcinogenesis. UC pathogenesis involves environmental and genetic factors. Genetic studies have indicated the association of gene variants coding for the divalent metal ion transporter SLC11A1 protein (formerly NRAMP1) with UC susceptibility in several animal species.

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Article Synopsis
  • The case describes a hoary fox pup in Brazil, co-infected with canine distemper virus (CDV) and canine adenovirus type 1 (CAdV-1), which showed severe health issues leading to euthanasia.
  • Pathological findings included mild hepatitis, bronchopneumonia, and corneal problems, with CDV and CAdV-1 antigens identified in various organs through immunohistochemistry.
  • The study highlights the importance of monitoring wildlife diseases to recognize potential conservation threats and the need for mitigation measures.
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Mucormycosis is rarely described in Platyrrhines. Herein, we describe the pathologic and molecular features of a gastric and hepatic infection by Mucor indicus in a marmoset (Callithrix sp.).

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Entomopathogenic fungi, widely available biological agents used to control agricultural pests, are sporadically reported to cause focal or disseminated infection in reptiles and mammals, including humans. This study summarizes the clinical presentation, histopathological and molecular findings by panfungal polymerase chain reaction and sequencing of four cases of hypocrealean fungal infections in captive common green iguanas (Iguana, iguana). One case of granulomatous pneumonia, hepatitis and serositis was related to Metarhizium flavoviride complex infection.

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Article Synopsis
  • Capybaras, the largest rodents in the world, are highly adaptable to urban environments in South America and can carry various zoonotic diseases.
  • A study conducted in São Paulo, Brazil, aimed to check for the presence of fecal-borne viruses in capybara feces by collecting 337 samples from 2018 to 2020 and testing for multiple virus types.
  • Results showed all samples tested negative for fecal-borne viruses, suggesting that they pose a minor public health risk in the studied areas, but ongoing monitoring of wildlife is vital to manage potential viral threats.
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Knowledge of reproductive health in wild southern tamanduas (; Mammalia: Myrmecophagidae) is fragmentary. During necropsies of roadkill xenarthran species in Brazil, a case of ovarian filariasis in an adult female southern tamandua was observed. Macroscopically, both ovaries were irregularly enlarged and had numerous smooth protuberances.

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  • Brazilian porcupine poxvirus (BPoPV) was identified in a free-ranging adult male hairy dwarf porcupine exhibiting severe skin lesions and lethargy in Brazil.
  • Diagnosis was confirmed through various methodologies, including histopathology and electron microscopy, which revealed characteristic viral inclusion bodies and large brick-shaped virions.
  • Following a comprehensive treatment plan that involved antibiotics and supportive therapies, the porcupine's skin lesions regressed, and post-treatment evaluations showed no remaining viral presence or significant pathology.
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Dengue infection is the most prevalent arthropod-borne viral disease in subtropical and tropical regions, whose primary vector is Aedes aegypti mosquitoes. The mechanisms of dengue virus (DENV) pathogenesis are little understood because we have no good disease models. Only humans develop symptoms (dengue fever, DF, or dengue hemorrhagic fever, DHF) and research has been limited to studies involving patients.

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This article aims to identify and map the actions to promote, protect and support breastfeeding that are carried out within the prison system. Scope review, whose searches were performed in the Latin American and Caribbean Health Sciences Literature and Nursing databases, Virtual Health Library, Medical Literature, Analysis, and Retrieval System Online, via PubMed, Scientific Electronic Library Online and the Capes Periodicals Portal. A total of 465 studies were obtained, 177 duplicates and 175 by title exclusion were removed, 56 articles were eliminated by abstract, and eight articles were not found.

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Keeping Neotropical primates in captivity puts them at great risk of illness because of their susceptibility to human herpesvirus. This is the first report on herpesvirus in Callicebus nigrifrons that developed clinical disease and was confirmed by immunohistochemical and RT-PCR. Diagnosis and prevention are essential for the conservation of species.

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Article Synopsis
  • Two new cases of Sabiá virus (SABV) infection were diagnosed in Brazil, marking the first instances in over 20 years.
  • The infected patients exhibited severe symptoms, including hepatitis and neurological issues, leading to their deaths, with unique histopathological features observed in autopsies.
  • Despite the possibility of transmission in healthcare settings, contact tracing showed no additional infections among hospital staff and contacts, highlighting the rarity of this virus.
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Toxoplasmosis is a zoonotic disease caused by the ubiquitous coccidia Toxoplasma gondii. Rodents play an important role in maintaining its life cycle, as they are one of the main diet sources for felids (wild and domestic), the unique definitive hosts. However, reports of toxoplasmosis in porcupines (Order Rodentia) are uncommon, with gaps concerning its pathophysiology.

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