Introduction Muscle mass assessment of critically ill patients is essential to be part of the nutritional diagnosis in hospital care. Thus, the evaluation of more specific techniques for that purpose is needed. The present study aimed to investigate the association of quadriceps muscle thickness (QMT), measured by ultrasound (US), with the nutritional status of critically ill patients in a referral high-complexity trauma care hospital. Methods A cross-sectional observational study was conducted in the intensive care units (ICUs) in a tertiary hospital in Brazil. The sample comprised 30 critically ill trauma patients admitted between February and March 2022. The methodology involved evaluating muscle mass and comparing nutritional status through mid-upper arm circumference measurements and US assessments. Specifically, the QMT was quantified using US at a predefined site between the iliac crest and the proximal border of the patella. Results The Kruskal-Wallis test indicated variability in QMT between the nutritional status groups, with statistical significance reached after excluding the overweight group (H(2) = 7.532, p = 0.023). The moderate malnutrition group exhibited notably lower QMT. Sensitivity analyses using bootstrap and Monte Carlo methods showed moderate trends toward significance. A positive correlation was found between QMT and mid-upper arm circumference adequacy (p < 0.05), demonstrating fair to moderate correlation (rs = 0.531). Conclusion Significant changes in QMT were detected by ultrasound assessment in moderate malnutrition patients compared to patients of other nutritional statuses. Ultrasound may be a valuable technique for monitoring muscle integrity in critically ill patients.

Objectives: To summarize evidence-based cognitive-behavioral therapy (CBT) treatment and propose clinical interventions for adult patients with obsessive-compulsive disorder (OCD). Methods: The literature on CBT interventions for adult OCD, including BT and exposure and response prevention, was systematically reviewed to develop updated clinical guidelines for clinicians, providing comprehensive details about the necessary procedures for the CBT protocol. We searched the literature from 2013-2020 in five databases (PubMed, Cochrane, Embase, PsycINFO, and Lilacs) regarding study design, primary outcome measures, publication type, and language. Selected articles were assessed for quality with validated tools. Treatment recommendations were classified according to levels of evidence developed by the American College of Cardiology and the American Heart Association. Results: We examined 44 new studies used to update the 2013 American Psychiatric Association guidelines. High-quality evidence supports CBT with exposure and response prevention techniques as a first-line treatment for OCD. Protocols for Internet-delivered CBT have also proven efficacious for adults with OCD. Conclusion: High-quality scientific evidence supports the use of CBT with exposure and response prevention to treat adults with OCD.

ABSTRACT Introduction For the reduction of PTH levels, two classes of drugs are available in the Brazilian market: non-selective and selective vitamin D receptor activators and calcimimetics. Among the mentioned drugs, the SUS provides oral calcitriol, paricalcitol and cinacalcet. Objectives: Develop cost-effectiveness (CE) and budgetary impact (BI) analysis of cinacalcet versus paricalcitol for patients on dialysis with SHPT, from the perspective of SUS. Methodology: A decision tree model was constructed for CE analysis, which considered the outcome of avoided parathyroidectomy and a time horizon of 1 year. As for the BI analysis, two scenarios were considered, one of which was measured demand and other epidemiological, based on data from the Brazilian Society of Nephrology (BSN). Results: The CE analysis showed that the use of cinacalcet results in one-off savings of R$1,394.64 per year and an incremental effectiveness of 0.08, in relation to avoided parathyroidectomy. The incremental CE ratio (ICER) was - R$ 17,653.67 per avoided parathyroidectomy for cinacalcet, as it was more effective and cheaper compared to paricalcitol. As for the BI analysis, it was estimated that the incremental BI with the expansion of the use of cinacalcet in the SUS will be between - R$ 1,640,864.62 and R$ 166,368.50 in the first year, considering the main and the epidemiological scenarios. At the end of 5 years after the expansion of use, an BI was estimated between - R$ 10,740,743.86 and - R$ 1,191,339.37; considering the same scenarios. Conclusion: Cinacalcet was dominant to avoid parathyroidectomies, being cost-effective.

RESUMO Introdução: Para a redução dos níveis do paratormônio (PTH) estão disponíveis no mercado brasileiro duas classes de medicamentos: ativadores do receptor da vitamina D (não seletivos e seletivos) e calcimiméticos. Dentre os medicamentos supracitados, o SUS disponibiliza calcitriol oral, paricalcitol e cinacalcete. Objetivos: Desenvolver análise de custo-efetividade (CE) e de impacto orçamentário (IO) do cinacalcete versus paricalcitol para pacientes em diálise com HPTS, na perspectiva do SUS. Metodologia: Foi construído um modelo de árvore de decisão para a análise de CE, que considerou o desfecho paratireoidectomia evitada e um horizonte temporal de 1 ano. Quanto à análise de IO, foram considerados dois cenários, um de demanda aferida e outro de abordagem epidemiológica, baseado nos dados da Sociedade Brasileira de Nefrologia (SBN). Resultados: A análise de CE mostrou que o uso de cinacalcete resulta em economia de R$ 1.394,64 ao ano e efetividade incremental de 0,08, em relação a paratireoidectomia evitada. A razão de CE incremental (RCEI) foi de - R$ 17.653,67 por paratireoidectomia evitada para o cinacalcete, já que se mostrou mais efetivo e mais barato comparado ao paricalcitol. Estimou-se que o IO incremental com a ampliação do uso do cinacalcete no SUS estará entre - R$ 1.640.864,62 e R$ 166.368,50 no primeiro ano, considerando os cenários principal e epidemiológico baseado nos dados da SBN. Já ao final de 5 anos após a ampliação do uso, estimou-se um impacto incremental entre - R$ 10.740.743,86 e - R$ 1.191.339,37; considerando os mesmos cenários. Conclusão: Cinacalcete foi dominante para evitar paratireoidectomias, sendo custo-efetivo.

Abstract The scope of this article was to identify the social representations of children in a municipal public school in Rio de Janeiro, with respect to the blood sampling procedure and to discuss the social representations that emerge, in the light of the performance of the family health team in carrying out this procedure. Moscovisci’s method/theory of analysis of social representations based on a qualitative approach was used. For data collection, the projective technique of the esthetic production scene and the student’s speech was used. The results were grouped into four categories: 1) structural dimensions involved in the blood sampling procedure; 2) dimension of the human component and its interface in the blood sampling procedure; 3) the psycho-emotional dimension portrayed in the blood sampling procedure; and 4) blood sampling: the importance for student health. With respect to the importance of blood sampling, we highlight the perception of students regarding the importance of actions aimed at prevention and health care promotion.

Resumo Objetivou-se identificar as representações sociais de crianças de uma escola pública municipal do Rio de Janeiro acerca do procedimento de coleta sanguínea e discutir as representações sociais emergidas, à luz da atuação da equipe de saúde da família na realização desse procedimento. Utilizou-se o método e a teoria de análise das representações sociais fundamentadas por Moscovisci e Jodelet, numa abordagem qualitativa. Para a coleta de dados, empregou-se a técnica projetiva de cena de produção estética e do discurso do escolar. Os resultados foram agrupados em quatro categorias: 1) dimensões estruturais que envolvem o procedimento de coleta sanguínea; 2) dimensão do componente humano e sua interface no procedimento de coleta sanguínea; 3) a dimensão psicoemocional retratada no procedimento de coleta sanguínea e 4) a coleta de sangue: a importância para a saúde do escolar. No que diz respeito à importância da coleta sanguínea, evidenciamos a percepção de escolares para a importância de ações voltadas à prevenção e promoção da saúde.

Abstract The scope of this article is to investigate the prevalence of the experience of forced sexual intercourse on life and its possible consequences on mental and sexual health among undergraduate students at a public university in Brazil. It is a quantitative cross-sectional study with 996 undergraduate students. Sampling was carried out systematically by single-stage clusters. Descriptive, bivariate and multivariate analyses were performed using the Poisson Regression model, and the etiological fractions of the consequences of forced sexual intercourse were calculated. The lifetime prevalence of forced sexual intercourse was 12.1%. Female sex, non-heterosexual sexual orientation, first sexual intercourse before the age of 14, child food insecurity and domestic violence were associated with a higher prevalence of the outcome. Individuals who experienced forced sexual intercourse were more likely to be diagnosed with sexually transmitted infections and to represent a potential suicide risk. The study revealed the problems of sexual violence in the university context.

Resumo O objetivo deste artigo é investigar a prevalência de relação sexual forçada na vida e suas possíveis consequências na saúde mental e sexual em acadêmicos de cursos de graduação de uma universidade pública no Brasil. Estudo transversal quantitativo com 996 estudantes de graduação. A amostragem realizada de forma sistemática por conglomerados. Foi usado o modelo de Regressão de Poisson, e foram calculadas as frações etiológicas das consequências de relação sexual forçada. A prevalência de relação sexual forçada ao longo da vida foi de 12,1%. Sexo feminino, orientação sexual não heterossexual, primeira relação sexual antes de 14 anos de idade, insegurança alimentar e violência no contexto doméstico na infância foram associados à maior prevalência do desfecho. Indivíduos que sofreram relação sexual forçada foram mais propensos a apresentar diagnóstico de infecções sexualmente transmissíveis e de ter risco de suicídio. O estudo evidenciou a problemática da violência sexual no contexto universitário.

Objectives: To summarize evidence-based pharmacological treatments and provide guidance on clinical interventions for adult patients with obsessive-compulsive disorder (OCD). Methods: The American Psychiatric Association (APA) guidelines for the treatment of OCD (2013) were updated with a systematic review assessing the efficacy of pharmacological treatments for adult OCD, comprising monotherapy with selective serotonin reuptake inhibitors (SSRIs), clomipramine, serotonin and norepinephrine reuptake inhibitors (SNRIs), and augmentation strategies with clomipramine, antipsychotics, and glutamate-modulating agents. We searched for the literature published from 2013-2020 in five databases, considering the design of the study, primary outcome measures, types of publication, and language. Selected articles had their quality assessed with validated tools. Treatment recommendations were classified according to levels of evidence developed by the American College of Cardiology and the American Heart Association (ACC/AHA). Results: We examined 57 new studies to update the 2013 APA guidelines. High-quality evidence supports SSRIs for first-line pharmacological treatment of OCD. Moreover, augmentation of SSRIs with antipsychotics (risperidone, aripiprazole) is the most evidence-based pharmacological intervention for SSRI-resistant OCD. Conclusion: SSRIs, in the highest recommended or tolerable doses for 8-12 weeks, remain the first-line treatment for adult OCD. Optimal augmentation strategies for SSRI-resistant OCD include low doses of risperidone or aripiprazole. Pharmacological treatments considered ineffective or potentially harmful, such as monotherapy with antipsychotics or augmentation with ketamine, lamotrigine, or N-acetylcysteine, have also been detailed.

Abstract Hereditary Hemochromatosis is a disorder characterized by iron deposition in several organs and hyperferritinemia. The most studied variants are linked to the HFE gene. In Brazil, surveys that characterize this population are scarce, with no sampling in the state of Rio Grande do Sul. Our objective is to carry out a data collection focusing on the profile of this population and the influence of the most frequently HFE variants. Two centers were enrolled: Hospital de Clínicas de Porto Alegre and Hospital São Vicente de Paulo. Patients with hyperferritinemia and undergoing phlebotomy were invited. Clinical data were collected, including HFE investigation. Among the descriptive data, the allele frequency of the C282Y variant (0.252) stands out, which differs from the national scenario. Systemic arterial hypertension was the most cited comorbidity. Differences between centers were observed, highlighting higher frequency of H63D cases in HSVP (p<0.01). Genotypes were stratified according to deleterious effect of C282Y variant. Higher transferrin saturation and number of phlebotomies were observed in the C282Y/C282Y cases (p<0.001). Positive family history for hyperferritinemia was more prevalent in compound heterozygotes (p<0.01). The results presented confirm the importance of encouraging such studies and reiterate the need for greater attention to this population.

Resumo A despeito da diversidade socioespacial, localidades rurais remotas têm em comum pequenos povoados dispersos em um vasto território, populações isoladas e longas distâncias em relação aos centros urbanos. O objetivo do estudo é analisar as especificidades da organização e do acesso à atenção primária à saúde (APS) no Sistema Único de Saúde (SUS) em municípios rurais remotos (MRR) brasileiros. Para tanto, realizou-se um estudo de abordagem qualitativa, com base em estudo de casos múltiplos em 27 MRR. Foi feita uma análise de conteúdo temática de 211 entrevistas semiestruturadas com gestores e profissionais de saúde, e uma triangulação de informações para explorar e reconhecer as formas de organização, estratégias e desafios para o acesso à saúde. Os resultados indicam que: as características dos contextos rurais remotos condicionam a provisão da APS; há diferenças nas formas de ofertar ações de saúde e maiores falhas de cobertura assistencial nas áreas mais rarefeitas e remotas dos municípios; existem contradições entre o financiamento da APS nacional e as características dos territórios marcado por rarefação populacional e longas distâncias; e a escassez da força de trabalho é um desafio comum nos municípios estudados. É necessário, portanto, considerar as características territoriais, sociais e de acesso aos serviços de saúde para a proposição de políticas públicas que atendam às necessidades dos MRR.

Abstract Despite the socio-spatial diversity, remote rural locations have in common small villages dispersed over a vast territory, isolated populations, and long distances from urban centers. The objective of the study is to analyze the specificities of the organization and access to primary health care (PHC) in the Brazilian National Health System (SUS) in remote rural municipalities (MRR). To that end a study with a qualitative approach, based on a multiple case study in 27 MRR was carried out. Thematic content analysis of 211 semi-structured interviews with managers and health professionals and a triangulation of information to explore and recognize the forms of organization, strategies, and challenges for the access to health were performed. The results indicate that: the characteristics of remote rural contexts condition the provision of PHC; there are differences in the ways of offering health actions and greater gaps in care coverage in the most rarefied and remote areas of the municipalities; there are contradictions between national PHC funding and the characteristics of territories marked by sparcely populated areas and long distances; and the shortage of the workforce is a common challenge among the cities studied. It is, thus, necessary to consider the territorial, social, and access characteristics to health services to propose public policies that meet the needs of the MRR.

RESUMO OBJETIVO Estimar a prevalência da exposição ao vírus SARS-CoV-2 entre indivíduos vivendo em restrição de liberdade. MÉTODOS Foi realizado inquérito de soroprevalência com a população da penitenciária feminina do Centro de Progressão Penitenciária (CPP) do Butantan (município de São Paulo), entre 24 de junho e 20 de agosto de 2020. Nesse período, segundo a Secretaria de Administração Penitenciária (SAP), a positividade dos testes rápidos entre detentos variou de 65 a 78%. O método de avaliação utilizado no estudo foi o teste rápido “One Step COVID-19” (cromatografia), da empresa Wondfo, empregando-se também o método RT-PCR em participantes sintomáticos para confirmação do quadro viral. A população do estudo foi constituída por 879 reeducandas e 170 funcionários da instituição. RESULTADOS A prevalência de anticorpos totais (IgG/IgM) contra o vírus SARS-CoV-2 na população total de 1.049 participantes do estudo foi de 6,1%; entre a população de 879 reeducandas foi observada prevalência de 5,8% e entre os servidores da instituição, 7,5%. CONCLUSÃO Houve baixa prevalência de covid-19 no CPP do Butantan, o que se deve à implementação de medidas de prevenção simples na instituição, como o uso de máscaras (com trocas adequadas), ênfase na higiene, lavagem das mãos e distanciamento social, além de outras estratégias, como suspensão de visitas de familiares e amigos das reeducandas, cortes de consultas médicas eletivas e do trabalho externo.

ABSTRACT OBJECTIVE To estimate the prevalence of exposure to the SARS-CoV-2 virus among individuals living in restricted freedom. METHODS A seroprevalence survey was carried out with the population of the female penitentiary of the Centro de Progressão Penitenciária (CPP) in Butantan (municipality of São Paulo), between June 24 and August 20, 2020. During this period, according to the Secretariat of Penitentiary Administration (SAP), the positivity of rapid tests among inmates ranged from 65% to 78%. The evaluation method used in the study was the “One Step COVID-19” rapid test (chromatography), from the company Wondfo, also using the RT-PCR method in symptomatic participants to confirm the viral condition. The study population consisted of 879 female inmates and 170 employees of the institution. RESULTS The prevalence of total antibodies (IgG/IgM) against the SARS-CoV-2 virus in the total population of 1049 study participants was 6.1%; among the population of 879 inmates,a prevalence of 5.8% was observed, and among the institution’s employees, 7.5%. CONCLUSIONS The prevalence of covid-19 at the Butantan CPP was low, which is due to the implementation of simple prevention measures at the institution, such as the use of masks (with appropriate changes), emphasis on hygiene, hand washing and social distancing, in addition to other strategies, such as suspending inmates’ visits from relatives and friends and cutting back on elective medical appointments and outside work.

RESUMO Introdução: Para a redução dos níveis do paratormônio (PTH) estão disponíveis no mercado brasileiro duas classes de medicamentos: ativadores do receptor da vitamina D (não seletivos e seletivos) e calcimiméticos. Dentre os medicamentos supracitados, o SUS disponibiliza calcitriol oral, paricalcitol e cinacalcete. Objetivos: Desenvolver análise de custo-efetividade (CE) e de impacto orçamentário (IO) do cinacalcete versus paricalcitol para pacientes em diálise com HPTS, na perspectiva do SUS. Metodologia: Foi construído um modelo de árvore de decisão para a análise de CE, que considerou o desfecho paratireoidectomia evitada e um horizonte temporal de 1 ano. Quanto à análise de IO, foram considerados dois cenários, um de demanda aferida e outro de abordagem epidemiológica, baseado nos dados da Sociedade Brasileira de Nefrologia (SBN). Resultados: A análise de CE mostrou que o uso de cinacalcete resulta em economia de R$ 1.394,64 ao ano e efetividade incremental de 0,08, em relação a paratireoidectomia evitada. A razão de CE incremental (RCEI) foi de - R$ 17.653,67 por paratireoidectomia evitada para o cinacalcete, já que se mostrou mais efetivo e mais barato comparado ao paricalcitol. Estimou-se que o IO incremental com a ampliação do uso do cinacalcete no SUS estará entre - R$ 1.640.864,62 e R$ 166.368,50 no primeiro ano, considerando os cenários principal e epidemiológico baseado nos dados da SBN. Já ao final de 5 anos após a ampliação do uso, estimou-se um impacto incremental entre - R$ 10.740.743,86 e - R$ 1.191.339,37; considerando os mesmos cenários. Conclusão: Cinacalcete foi dominante para evitar paratireoidectomias, sendo custo-efetivo.

ABSTRACT Introduction For the reduction of PTH levels, two classes of drugs are available in the Brazilian market: non-selective and selective vitamin D receptor activators and calcimimetics. Among the mentioned drugs, the SUS provides oral calcitriol, paricalcitol and cinacalcet. Objectives: Develop cost-effectiveness (CE) and budgetary impact (BI) analysis of cinacalcet versus paricalcitol for patients on dialysis with SHPT, from the perspective of SUS. Methodology: A decision tree model was constructed for CE analysis, which considered the outcome of avoided parathyroidectomy and a time horizon of 1 year. As for the BI analysis, two scenarios were considered, one of which was measured demand and other epidemiological, based on data from the Brazilian Society of Nephrology (BSN). Results: The CE analysis showed that the use of cinacalcet results in one-off savings of R$1,394.64 per year and an incremental effectiveness of 0.08, in relation to avoided parathyroidectomy. The incremental CE ratio (ICER) was - R$ 17,653.67 per avoided parathyroidectomy for cinacalcet, as it was more effective and cheaper compared to paricalcitol. As for the BI analysis, it was estimated that the incremental BI with the expansion of the use of cinacalcet in the SUS will be between - R$ 1,640,864.62 and R$ 166,368.50 in the first year, considering the main and the epidemiological scenarios. At the end of 5 years after the expansion of use, an BI was estimated between - R$ 10,740,743.86 and - R$ 1,191,339.37; considering the same scenarios. Conclusion: Cinacalcet was dominant to avoid parathyroidectomies, being cost-effective.

Resumo O objetivo deste artigo é investigar a prevalência de relação sexual forçada na vida e suas possíveis consequências na saúde mental e sexual em acadêmicos de cursos de graduação de uma universidade pública no Brasil. Estudo transversal quantitativo com 996 estudantes de graduação. A amostragem realizada de forma sistemática por conglomerados. Foi usado o modelo de Regressão de Poisson, e foram calculadas as frações etiológicas das consequências de relação sexual forçada. A prevalência de relação sexual forçada ao longo da vida foi de 12,1%. Sexo feminino, orientação sexual não heterossexual, primeira relação sexual antes de 14 anos de idade, insegurança alimentar e violência no contexto doméstico na infância foram associados à maior prevalência do desfecho. Indivíduos que sofreram relação sexual forçada foram mais propensos a apresentar diagnóstico de infecções sexualmente transmissíveis e de ter risco de suicídio. O estudo evidenciou a problemática da violência sexual no contexto universitário.

Abstract The scope of this article is to investigate the prevalence of the experience of forced sexual intercourse on life and its possible consequences on mental and sexual health among undergraduate students at a public university in Brazil. It is a quantitative cross-sectional study with 996 undergraduate students. Sampling was carried out systematically by single-stage clusters. Descriptive, bivariate and multivariate analyses were performed using the Poisson Regression model, and the etiological fractions of the consequences of forced sexual intercourse were calculated. The lifetime prevalence of forced sexual intercourse was 12.1%. Female sex, non-heterosexual sexual orientation, first sexual intercourse before the age of 14, child food insecurity and domestic violence were associated with a higher prevalence of the outcome. Individuals who experienced forced sexual intercourse were more likely to be diagnosed with sexually transmitted infections and to represent a potential suicide risk. The study revealed the problems of sexual violence in the university context.

Resumo Objetivou-se identificar as representações sociais de crianças de uma escola pública municipal do Rio de Janeiro acerca do procedimento de coleta sanguínea e discutir as representações sociais emergidas, à luz da atuação da equipe de saúde da família na realização desse procedimento. Utilizou-se o método e a teoria de análise das representações sociais fundamentadas por Moscovisci e Jodelet, numa abordagem qualitativa. Para a coleta de dados, empregou-se a técnica projetiva de cena de produção estética e do discurso do escolar. Os resultados foram agrupados em quatro categorias: 1) dimensões estruturais que envolvem o procedimento de coleta sanguínea; 2) dimensão do componente humano e sua interface no procedimento de coleta sanguínea; 3) a dimensão psicoemocional retratada no procedimento de coleta sanguínea e 4) a coleta de sangue: a importância para a saúde do escolar. No que diz respeito à importância da coleta sanguínea, evidenciamos a percepção de escolares para a importância de ações voltadas à prevenção e promoção da saúde.

Abstract The scope of this article was to identify the social representations of children in a municipal public school in Rio de Janeiro, with respect to the blood sampling procedure and to discuss the social representations that emerge, in the light of the performance of the family health team in carrying out this procedure. Moscovisci’s method/theory of analysis of social representations based on a qualitative approach was used. For data collection, the projective technique of the esthetic production scene and the student’s speech was used. The results were grouped into four categories: 1) structural dimensions involved in the blood sampling procedure; 2) dimension of the human component and its interface in the blood sampling procedure; 3) the psycho-emotional dimension portrayed in the blood sampling procedure; and 4) blood sampling: the importance for student health. With respect to the importance of blood sampling, we highlight the perception of students regarding the importance of actions aimed at prevention and health care promotion.

BACKGROUND Recurrence is a hallmark of ocular toxoplasmosis (OT), and conditions that influence its occurrence remain a challenge. Natural killer cells (NK) are effectors cells whose primary is cytotoxic function against many parasites, including Toxoplasma gondii. Among the NK cell receptors, immunoglobulin-like receptors (KIR) deserve attention due to their high polymorphism. OBJECTIVES This study aimed to analyse the influence of KIR gene polymorphism in the course of OT infection and its association with recurrences after an active episode. METHODS Ninety-six patients from the Ophthalmologic Clinic of the National Institute of Infectology Evandro Chagas were followed for up to five years. After DNA extraction, genotyping of the patients was performed by polymerase chain reaction sequence-specific oligonucleotide (PCR-SSO) utilising Luminex equipment for reading. During follow-up, 60.4% had a recurrence. FINDINGS We identified 25 KIR genotypes and found a higher frequency of genotype 1 (31.7%) with worldwide distribution. We note that the KIR2DL2 inhibitor gene and the gene activator KIR2DS2 were more frequent in patients without recurrence. Additionally, we observed that individuals who carry these genes progressed recurrence episodes slowly compared to individuals who do not carry these genes. MAIN CONCLUSIONS The KIR2DL2 and KIR2DS2 are associated as possible protection markers against ocular toxoplasmosis recurrence (OTR).

ABSTRACT New viruses of the Picornavirales order have been discovered with the increase in the number of sequences obtained by high-throughput sequencing, as well as human stool-associated RNA virus (husavirus [HuV]), found in human stool samples. However, there is much to be clarified about HuV. Its cellular host, evolutionary history, and other biological characteristics are still unknown. Therefore, samples collected from human beings and environmental samples in a watershed in Southern Brazil were processed for the metagenomic library. Upon metagenomic analysis, we identified a HuV (husavirus LMM_67754 OP019707) genome with 8,846 bp, which was reported for the first time in Southern Brazil. The new genome presents only 37% of nucleotide identity with Brazilian strains and more than 90% with genomes from China, Vietnam, Venezuela, and the Netherlands. The HuV phylogeny presents significant differences among genomes, probably because multiple introductions of the virus may have occurred. Many questions still need to be answered about HuV. Therefore, more sequences and studies on this virus are necessary to improve the comprehension of the unknown origin of Picornavirales.