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Siqueira JAM, Teixeira DM, da Piedade GJL, Souza CDO, Moura TCF, Bahia MDNM, Brasiliense DM, Santos DSADS, Morais LLCDS, da Silva DDFL, Carneiro BS, Pinheiro KDC, Junior ECS, Catete CP, Souza E Guimarães RJDP, Ferreira JL, Chagas Junior WDD, Machado RS, Tavares FN, Resque HR, Dos Santos Lobo P, Guerra SDFDS, Soares LS, da Silva LD, Gabbay YB. Environmental health of water bodies from a Brazilian Amazon Metropolis based on a conventional and metagenomic approach. J Appl Microbiol 2024; 135:lxae101. [PMID: 38627246 DOI: 10.1093/jambio/lxae101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 04/03/2024] [Accepted: 04/15/2024] [Indexed: 05/03/2024]
Abstract
AIMS The present study aimed to use a conventional and metagenomic approach to investigate the microbiological diversity of water bodies in a network of drainage channels and rivers located in the central area of the city of Belém, northern Brazil, which is considered one of the largest cities in the Brazilian Amazon. METHODS AND RESULTS In eight of the analyzed points, both bacterial and viral microbiological indicators of environmental contamination-physical-chemical and metals-were assessed. The bacterial resistance genes, drug resistance mechanisms, and viral viability in the environment were also assessed. A total of 473 families of bacteria and 83 families of viruses were identified. Based on the analysis of metals, the levels of three metals (Cd, Fe, and Mn) were found to be above the recommended acceptable level by local legislation. The levels of the following three physicochemical parameters were also higher than recommended: biochemical oxygen demand, dissolved oxygen, and turbidity. Sixty-three bacterial resistance genes that conferred resistance to 13 different classes of antimicrobials were identified. Further, five mechanisms of antimicrobial resistance were identified and viral viability in the environment was confirmed. CONCLUSIONS Intense human actions combined with a lack of public policies and poor environmental education of the population cause environmental degradation, especially in water bodies. Thus, urgent interventions are warranted to restore the quality of this precious and scarce asset worldwide.
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Affiliation(s)
| | - Dielle Monteiro Teixeira
- Laboratório de Vírus Gastroentéricos, Seção de Virologia, Instituto Evandro Chagas (SVSA/MS), CEP 67030-000, Brazil
| | | | - Cintya de Oliveira Souza
- Laboratório de Enteroinfecções Bacterianas II, Seção de Bacteriologia e Micologia, Instituto Evandro Chagas (SVSA/MS), CEP 67030-000, Brazil
| | - Tuane Carolina Ferreira Moura
- Laboratório de Enteroinfecções Bacterianas II, Seção de Bacteriologia e Micologia, Instituto Evandro Chagas (SVSA/MS), CEP 67030-000, Brazil
| | - Marcia de Nazaré Miranda Bahia
- Laboratório de Enteroinfecções Bacterianas II, Seção de Bacteriologia e Micologia, Instituto Evandro Chagas (SVSA/MS), CEP 67030-000, Brazil
| | - Danielle Murici Brasiliense
- Laboratório de Patógenos Especiais, Seção de Bacteriologia e Micologia, Instituto Evandro Chagas (SVSA/MS), CEP 67030-000, Brazil
| | | | | | | | - Bruno Santana Carneiro
- Laboratório de Indicadores Físico-Químicos de Qualidade da Água, Seção de Meio Ambiente, Instituto Evandro Chagas (SVSA/MS), CEP 67030-000, Brazil
| | - Kenny da Costa Pinheiro
- Laboratório de Bioinformática, Seção de Virologia, Instituto Evandro Chagas (SVSA/MS), CEP 67030-000, Brazil
| | - Edivaldo Costa Sousa Junior
- Laboratório de Epidemiologia em Leishmanioses, Seção de Parasitologia, Instituto Evandro Chagas (SVSA/MS), CEP 67030-000, Brazil
| | - Clístenes Pamplona Catete
- Laboratório de Geoprocessamento, Seção de Epidemiologia, Instituto Evandro Chagas (SVSA/MS), CEP 67030-000, Brazil
| | | | - James Lima Ferreira
- Laboratório de Enterovírus, Seção de Virologia, Instituto Evandro Chagas (SVSA/MS), CEP 67030-000, Brazil
| | | | - Raiana Scerni Machado
- Laboratório de Enterovírus, Seção de Virologia, Instituto Evandro Chagas (SVSA/MS), CEP 67030-000, Brazil
| | - Fernando Neto Tavares
- Laboratório de Enterovírus, Seção de Virologia, Instituto Evandro Chagas (SVSA/MS), CEP 67030-000, Brazil
| | - Hugo Reis Resque
- Laboratório de Vírus Gastroentéricos, Seção de Virologia, Instituto Evandro Chagas (SVSA/MS), CEP 67030-000, Brazil
| | - Patrícia Dos Santos Lobo
- Laboratório de Vírus Gastroentéricos, Seção de Virologia, Instituto Evandro Chagas (SVSA/MS), CEP 67030-000, Brazil
| | | | - Luana Silva Soares
- Laboratório de Vírus Gastroentéricos, Seção de Virologia, Instituto Evandro Chagas (SVSA/MS), CEP 67030-000, Brazil
| | - Luciana Damascena da Silva
- Laboratório de Vírus Gastroentéricos, Seção de Virologia, Instituto Evandro Chagas (SVSA/MS), CEP 67030-000, Brazil
| | - Yvone Benchimol Gabbay
- Laboratório de Vírus Gastroentéricos, Seção de Virologia, Instituto Evandro Chagas (SVSA/MS), CEP 67030-000, Brazil
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da Costa JN, Siqueira JAM, Teixeira DM, Lobo PDS, Guerra SDFDS, Souza IM, Cardoso BTM, Farias LSS, Resque HR, Gabbay YB, da Silva LD. Epidemiological and molecular surveillance of norovirus in the Brazilian Amazon: description of recombinant genotypes and improvement of evolutionary analysis. Rev Inst Med Trop Sao Paulo 2024; 66:e22. [PMID: 38656038 PMCID: PMC11027490 DOI: 10.1590/s1678-9946202466022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Accepted: 01/12/2024] [Indexed: 04/26/2024] Open
Abstract
Noroviruses are highly infectious, genetically diverse viruses. Global outbreaks occur frequently, making molecular surveillance important for infection monitoring. This cross-sectional descriptive study aimed to monitor cases of norovirus gastroenteritis in the Brazilian Amazon. Fecal samples were tested by immunoenzymatic assay, RT-PCR and genetic sequencing for the ORF1/ORF2 and protease regions. Bayesian inference with a molecular clock was employed to construct the phylogeny. The norovirus prevalence was 25.8%, with a higher positivity rate among children aged 0-24 months. Genogroup GII accounted for 98.1% of the sequenced samples, while GI accounted for 1.9% of them. The GII.P16/GII.4 genotype was the most prevalent, with an evolution rate of 2.87x10-3 and TMRCA estimated in 2012. This study demonstrates that norovirus is a primary causative agent of gastroenteritis and provides data on viral genetic diversity that may facilitate infection surveillance and vaccine development.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Hugo Reis Resque
- Instituto Evandro Chagas, Seção de Virologia, Ananindeua, Pará, Brazil
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das Neves Costa LCP, Siqueira JAM, Teixeira DM, da Piedade GJL, Júnior ECS, Ferreira JL, da Silva LD, Gabbay YB. Circulation of adenovirus and other viruses in urban drainage channels: an environmental surveillance in Belém, Amazon region, Brazil. Braz J Microbiol 2023; 54:2939-2949. [PMID: 37747624 PMCID: PMC10689653 DOI: 10.1007/s42770-023-01125-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Accepted: 09/06/2023] [Indexed: 09/26/2023] Open
Abstract
Urban channels in amazon cities are very polluted, with garbage and sewage disposal in these aquatic environments, favoring the high dissemination of waterborne viruses such as human adenovirus (HAdV). The aim of this study was to perform the detection and molecular characterization of adenovirus in urban channels and in a wastewater treatment plant located in a metropolitan city in the Amazon. Additionally, metagenomic analyses were performed to assess viral diversity. Samples were concentrated by organic flocculation, analyzed by quantitative real time PCR (qPCR) and sequenced (Sanger e next generation sequencing). Cell culture was performed to verify the viability of HAdV particles. A total of 104 samples were collected, being the HAdV positivity of 76% (79/104). Among the positive samples, 29.1% (23/79) were characterized as HAdV-F40 (87%, 20/23), HAdV-F41 (8.7%, 2/23), and HAdV-B (4.3%, 1/23). Average precipitation rates ranged from 163 to 614 mm, while the pH ranged from 6.9 to 7.6. Eight positive samples were inoculated into A549 cells and in 4 of these, was observed changes in the structure of the cell monolayer, alteration in the structure of the cell monolayer was observed, but without amplification when analyzed by PCR. The metagenomic data demonstrated the presence of 14 viral families, being the most abundant: Myoviridae (41% of available reads), Siphoviridae (24.5%), Podoviridae (14.1%), and Autographiviridae (6.9%) with more than 85% of the total number of identified reads. This study reinforcing that continuous surveillance may contribute to monitoring viral diversity in aquatic environments and provide early warning of potential outbreaks.
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Affiliation(s)
| | - Jones Anderson Monteiro Siqueira
- Virology Section, Evandro Chagas Institute, Health and Environment Surveillance Secretariat, Brazilian Ministry of Health, Ananindeua, PA, Brazil
| | - Dielle Monteiro Teixeira
- Virology Section, Evandro Chagas Institute, Health and Environment Surveillance Secretariat, Brazilian Ministry of Health, Ananindeua, PA, Brazil
| | - Guilherme Junior Leite da Piedade
- Postgraduate Program in Virology, Evandro Chagas Institute, Health and Environment Surveillance Secretariat, Brazilian Ministry of Health, Ananindeua, PA, Brazil
| | - Edivaldo Costa Sousa Júnior
- Virology Section, Evandro Chagas Institute, Health and Environment Surveillance Secretariat, Brazilian Ministry of Health, Ananindeua, PA, Brazil
| | - James Lima Ferreira
- Virology Section, Evandro Chagas Institute, Health and Environment Surveillance Secretariat, Brazilian Ministry of Health, Ananindeua, PA, Brazil
| | - Luciana Damascena da Silva
- Virology Section, Evandro Chagas Institute, Health and Environment Surveillance Secretariat, Brazilian Ministry of Health, Ananindeua, PA, Brazil
| | - Yvone Benchimol Gabbay
- Virology Section, Evandro Chagas Institute, Health and Environment Surveillance Secretariat, Brazilian Ministry of Health, Ananindeua, PA, Brazil
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Cardoso BTM, de Deus DR, Sousa EC, Pinheiro KDC, da Costa JN, Maués MAC, Mesquita MJDF, Teixeira DM, Siqueira JAM, Resque HR, Gabbay YB, da Silva LD. Molecular analysis of canine circovirus in dogs from animal shelters in Belém, Pará, northern Brazil: first detection at the amazon region. Braz J Vet Med 2023; 45:e000723. [PMID: 37859867 PMCID: PMC10583600 DOI: 10.29374/2527-2179.bjvm000723] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Accepted: 08/03/2023] [Indexed: 10/21/2023] Open
Abstract
The canine circovirus (CanCV) is a single-stranded DNA virus that has become an important emerging virus associated with gastroenteritis in dogs worldwide. In the present study, the CanCV was detected by PCR in 15% (22/147) of dogs from animal shelters in Belém, between 2019 and 2020. We observed an association between the CanCV infection and the presence of diarrhea in animals younger than one year of age (p > 0.01). The Brazilian strains were grouped in Chinese genotypes, with 99.54 to 100% nucleotilde homology. The GMRF Bayesian Skyride used the molecular clock model, which was the best suited technique to plot the dataset. The most recent common ancestor (TMRCA) was estimated in 2017, with the evolution rate of 1.6 x 10-3 s/s/y. The viral family diversity was also investigated, with emphasis on the families of the enteric pathogenic viruses Parvoviridae, Picornaviridae and Astroviridae, which were detected in the CanCV positive pooled samples. This study highlights the importance of the CanCV as an emergent virus that causes diarrhea in Brazilian dogs. The results found herein contribute to the understanding of the role of CanCV in enteric diseases and in the evolutionary molecular characterization of the circulating genotypes. Furthermore, we increased the understanding of the fecal virome in dogs with diarrhea, providing data for the monitoring and prevention viral gastroenteric diseases in domestic animals.
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Affiliation(s)
- Bruna Trindade Moreira Cardoso
- Biomedical Scientist, Programa de Pós-graduação em Biologia Parasitária da Amazônia (PPGBPA), Centro de Ciências Biológicas e da Saúde (CCBS), Universidade do Estado do Pará, Belém, PA, Brazil.
| | - Danielle Rodrigues de Deus
- Biologist, MSc., Programa de Pós-graduação em Virologia, Instituto Evandro Chagas, Ananindeua, PA, Brazil.
| | - Edivaldo Costa Sousa
- Biomedical Scientist, DSc., Seção de Parasitologia, Instituto Evandro Chagas, Ananindeua, PA, Brazil.
| | - Kenny da Costa Pinheiro
- Biomedical Scientist, DSc., Seção de Virologia, Instituto Evandro Chagas, Ananindeua, PA, Brazil.
| | - Jonaia Novaes da Costa
- Biomedical Scientist, Programa de Pós-graduação em Biologia Parasitária da Amazônia (PPGBPA), Centro de Ciências Biológicas e da Saúde (CCBS), Universidade do Estado do Pará, Belém, PA, Brazil.
| | | | | | - Dielle Monteiro Teixeira
- Biomedical Scientist, DSc., Seção de Virologia, Instituto Evandro Chagas, Ananindeua, PA, Brazil.
| | | | - Hugo Reis Resque
- Biomedical Scientist, DSc., Seção de Virologia, Instituto Evandro Chagas, Ananindeua, PA, Brazil.
| | - Yvone Benchimol Gabbay
- Biomedical Scientist, DSc., Seção de Virologia, Instituto Evandro Chagas, Ananindeua, PA, Brazil.
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Coutinho CRM, Cardoso JF, Siqueira JAM, Machado RS, Chagas Júnior WDD, Tavares FN, Gabbay YB. Diversity of picornaviruses detected in diarrheal samples from children in Belém, Brazilian Amazon (1982-2019). J Med Virol 2023; 95:e28873. [PMID: 37349989 DOI: 10.1002/jmv.28873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 05/06/2023] [Accepted: 06/02/2023] [Indexed: 06/24/2023]
Abstract
In this investigation, fecal specimens from children with diarrhea were collected from four community studies conducted between 1982 and 2019 in Belém, Brazilian Amazon. A total of 234 samples were tested by quantitative reverse transcription polymerase chain reaction (RT-qPCR) to detect infections by picornaviruses of the Enterovirus (EV), Parechovirus (HPeV), Cosavirus (HCoSV), Kobuvirus (Aichivirus - AiV) and Salivirus (SalV) genera. The positive samples were subjected to different amplification protocols of the VP1 region of the genome, such as nested PCR or snPCR, and were subsequently genotyped by sequencing VP1 and VP3 of the viral genome. Positivity was observed in 76.5% (179/234) of the samples tested using RT-qPCR for at least one virus, and co-infection was observed in 37.4% (67/179) of the cases. EV was detected in 50.8% (119/234), HPeV in 29.9% (70/234), HCoSV in 27.3% (64/234), and AiV/SalV in 2.1% (5/234) of the specimens tested by RT-qPCR. Using nested PCR and/or snPCR techniques, the positivity rates were 94.11% (112/119) for EV, 72.85% (51/70) for HPeV, and 20.31% (13/64) for HCoSV. It was not possible to amplify the samples that were positive for AiV/SalV. Sequencing revealed 67.2% (80/119) EV, 51.4% (36/70) HPeV, and 20.31% (13/64) HCoSV. Forty-five different types of EV were found among species A, B, and C; HCoSV identified five species, including a possible recombinant strain; all HPeV were identified as belonging to species A, in two samples a possible recombination involving three different strains was verified. This study demonstrated the high circulation and diversity of different types of picornaviruses in fecal samples, including those collected more than 30 years ago. This endorsed the evaluation of important points in the epidemiology of these viruses, such as the presence of co-infection and the possibility of knowing more about these agents, considering that some were recently described; therefore, their detection in older samples can provide more data about their ancestry.
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Affiliation(s)
| | - Jedson Ferreira Cardoso
- Laboratório de Bioinformática-BIOINFO, Seção de Virologia-SAVIR, Instituto Evandro Chagas-IEC, Secretaria de Vigilância em Saúde e Ambiente-SVSA, Ministério da Saúde, Ananindeua, Pará, Brazil
| | - Jones Anderson Monteiro Siqueira
- Laboratório de Vírus Gastroentéricos-LVG, Seção de Virologia-SAVIR, Instituto Evandro Chagas-IEC, Secretaria de Vigilância em Saúde e Ambiente-SVSA, Ministério da Saúde, Ananindeua, Pará, Brazil
| | - Raiana Scerni Machado
- Programa de Pós-graduação em Medicina Tropical, Instituto Oswaldo Cruz-FIOCRUZ, Rio de Janeiro, Brazil
| | - Wanderley Dias das Chagas Júnior
- Laboratório de Enterovírus-LEV, Seção de Virologia-SAVIR, Instituto Evandro Chagas-IEC, Secretaria de Vigilância em Saúde e Ambiente-SVSA, Ministério da Saúde, Ananindeua, Pará, Brazil
| | - Fernando Neto Tavares
- Laboratório de Enterovírus-LEV, Seção de Virologia-SAVIR, Instituto Evandro Chagas-IEC, Secretaria de Vigilância em Saúde e Ambiente-SVSA, Ministério da Saúde, Ananindeua, Pará, Brazil
| | - Yvone Benchimol Gabbay
- Laboratório de Vírus Gastroentéricos-LVG, Seção de Virologia-SAVIR, Instituto Evandro Chagas-IEC, Secretaria de Vigilância em Saúde e Ambiente-SVSA, Ministério da Saúde, Ananindeua, Pará, Brazil
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Albuquerque MA, Deus DRD, Lobo PS, Teixeira DM, Maués MAC, Cardoso JF, Silva LDD, Gabbay YB, Resque HR, Silva Soares LD, Siqueira JAM, Guerra SFS. Detection of G3 human-like rotavirus in institutionalized dogs from Brazil. Braz J Microbiol 2023; 54:1295-1301. [PMID: 37076753 PMCID: PMC10234945 DOI: 10.1007/s42770-023-00972-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2023] [Accepted: 04/07/2023] [Indexed: 04/21/2023] Open
Abstract
Viral gastroenteritis is a common clinical problem in dogs and group A rotavirus (RVA) is one of the agents involved in this etiology. It mainly affects dogs in the first 6 months of life, and these animals are considered an important reservoir and potential transmitters of the virus to other susceptible hosts, such as humans. Among the different types of RVA, G3 is the most detected in dogs, and this genotype is also involved in infections in other animals, including humans. Thus, the present study aims to investigate the presence of RVA in samples of dogs from a public kennel. A total of 64 fecal samples from dogs with diarrhea were analyzed, collected from April 2019 to March 2020, from the kennel of the Zoonosis Control Center, located in Belém, a city in the North of Brazil. The extracted genetic material was subjected to reverse transcription followed by real-time PCR (RT-qPCR); the positives were tested by RT-PCR with a specific primer for the RVA VP7 gene, after nucleotide sequencing and phylogenetic analysis. One sample was subjected to high-performance sequencing. A positivity of 7.8% (5/64) was observed for RVA, all characterized as G3, grouping in the G3-III lineage, with greater similarity to human samples. Different regions of the RVA genome fragments were found. These results emphasize the need for animal health surveillance to better understand the global strain dispersion of RVA and elucidate possible interspecies transmission events, monitoring the genetic diversity of this pathogen.
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Affiliation(s)
| | | | - Patrícia Santos Lobo
- Evandro Chagas Institute, Health Surveillance Secretariat, Brazilian Ministry of Health, Pará, Ananindeua, Brazil
| | - Dielle Monteiro Teixeira
- Evandro Chagas Institute, Health Surveillance Secretariat, Brazilian Ministry of Health, Pará, Ananindeua, Brazil
| | | | - Jedson Ferreira Cardoso
- Evandro Chagas Institute, Health Surveillance Secretariat, Brazilian Ministry of Health, Pará, Ananindeua, Brazil
| | - Luciana Damascena da Silva
- Evandro Chagas Institute, Health Surveillance Secretariat, Brazilian Ministry of Health, Pará, Ananindeua, Brazil
| | - Yvone Benchimol Gabbay
- Evandro Chagas Institute, Health Surveillance Secretariat, Brazilian Ministry of Health, Pará, Ananindeua, Brazil
| | - Hugo Reis Resque
- Evandro Chagas Institute, Health Surveillance Secretariat, Brazilian Ministry of Health, Pará, Ananindeua, Brazil
| | - Luana da Silva Soares
- Evandro Chagas Institute, Health Surveillance Secretariat, Brazilian Ministry of Health, Pará, Ananindeua, Brazil
| | | | - Sylvia Fátima Santos Guerra
- Evandro Chagas Institute, Health Surveillance Secretariat, Brazilian Ministry of Health, Pará, Ananindeua, Brazil.
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Portela AR, Hernandez JM, Bandeira RS, Junior ECS, de Melo TC, Lucena MSS, Teixeira DM, Siqueira JAM, Gabbay YB, Silva LD. Retrospective molecular analysis of norovirus recombinant strains in the amazon region, Brazil. Infect Genet Evol 2021; 96:105130. [PMID: 34742933 DOI: 10.1016/j.meegid.2021.105130] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 10/18/2021] [Accepted: 10/31/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND Noroviruses are enteric viruses that cause acute gastroenteritis worldwide. Over two decades, GII.4 genotype was responsible for most cases. However, recombinant strains have emerged and changed the epidemiological context of these infections. OBJECTIVES The aim of this study was to identify the recombinant genetic strains of norovirus causing gastroenteritis in Brazilian children from the Amazon region. METHODS We analyzed 534 cases of gastroenteritis between 2015 and 2016. Genotypic characterization was performed by partial sequencing of ORF1 and ORF2. Evolutionary history was inferred by Bayesian inference using MrBayes. Recombinant strains were confirmed by Simplot and RDP4 analysis. FINDINGS We performed viral detection tests and identified a norovirus frequency of 31.8% (175/534). Based on viral RdRp and VP1 genes, nine genotypes were identified: GIIP31/GII.4, GII·P16/GII.4, GII·P7/GII.6, GII·P21/GII.13, GII·P33/GII.1, GII·P17/GII.17, GI·P7/GI.7, GII·P4/NT, and GII.7/NT. The phylogenetic tree showed evolutionary relationships among the genotypes, including the recombinant strains. This is the first description of GII·P33/GII.1 and GII·P21/GII.13 genotypes in Brazil. CONCLUSION Norovirus evolution has been characterized by the continuous replacement of variants that have new antigenic properties. In recent years, recombinant strains have displaced GII.4, improving the viral fitness and influencing the viral transmissibility and pathogenicity.
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Affiliation(s)
| | - Juliana Merces Hernandez
- Postgraduate Program in Biology of Infectious and Parasitic Agents, Federal University of Pará, Belém, Pará, Brazil
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Macêdo O, Freitas FB, Dos Reis RM, Bensabath G, Nunes HM, Siqueira JAM, Gabbay YB. Prevalence and epidemiological characteristics of human immunodeficiency virus-1 infection in an iron mining area with intense migratory flow in Pará State, Brazilian amazon, 2005-2014. Braz J Microbiol 2020; 51:1737-1745. [PMID: 32892253 DOI: 10.1007/s42770-020-00361-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Accepted: 08/07/2020] [Indexed: 02/08/2023] Open
Abstract
Acquired immunodeficiency syndrome (AIDS) caused by human immunodeficiency virus (HIV) is a major global public health problem. The aim of this study is to determine the prevalence of HIV-1 infection in four municipalities of Pará State (Marabá, Parauapebas, Curionópolis, and Canaã dos Carajás), in northern, Brazil. The municipalities are located in the Carajás Complex iron mining area. The employment opportunities result in extensive migratory flow of people. A total of 4771 serum samples were obtained from 2005 to 2014 and were sent to Evandro Chagas Institute, Belém-Pará, where they were tested by enzyme-linked immunosorbent assay, with reactive samples confirmed by Western blot analysis. The samples were from individuals from 23 Brazilian states and the Federal District, mainly Maranhão (39.53%) and other municipalities of Pará (34.25%). The total positivity rate was 0.48% (23/4771). The rate was 0.47% (14/2975) in males and 0.50% (9/1796) in females. Of these, 0.33% (14/4275) were from asymptomatic individuals whose serum were collected during the serological survey, 1.81% (9/497) were from cases featuring clinical symptoms including fever/diarrhea/jaundice, which were included in febrile, diarrheal, and icteric syndromes analyzed during the study. The findings indicated the presence of HIV-1 infection in the general population studied. The majority of cases (60.9%, 14 of 23 positive cases) were asymptomatic.
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Affiliation(s)
- Olinda Macêdo
- Seção de Virologia/Instituto Evandro Chagas, Secretaria de Vigilância em Saúde, Ministério da Saúde, Rodovia BR-316 km 7 s/n, Levilândia,, Ananindeua, Pará, 67030-000, Brazil
| | - Felipe Bonfim Freitas
- Seção de Virologia/Instituto Evandro Chagas, Secretaria de Vigilância em Saúde, Ministério da Saúde, Rodovia BR-316 km 7 s/n, Levilândia,, Ananindeua, Pará, 67030-000, Brazil
| | - Raimundo Macedo Dos Reis
- Seção de Virologia/Instituto Evandro Chagas, Secretaria de Vigilância em Saúde, Ministério da Saúde, Rodovia BR-316 km 7 s/n, Levilândia,, Ananindeua, Pará, 67030-000, Brazil
| | - Gilberta Bensabath
- Seção de Hepatologia /Instituto Evandro Chagas, Secretaria de Vigilância em Saúde, Ministério da Saúde,, Rodovia BR-316 Km 7 s/n, Levilândia, Ananindeua, Pará, 67030-000, Brazil
| | - Heloisa Marciliano Nunes
- Seção de Hepatologia /Instituto Evandro Chagas, Secretaria de Vigilância em Saúde, Ministério da Saúde,, Rodovia BR-316 Km 7 s/n, Levilândia, Ananindeua, Pará, 67030-000, Brazil
| | - Jones Anderson Monteiro Siqueira
- Seção de Virologia/Instituto Evandro Chagas, Secretaria de Vigilância em Saúde, Ministério da Saúde, Rodovia BR-316 km 7 s/n, Levilândia,, Ananindeua, Pará, 67030-000, Brazil
| | - Yvone Benchimol Gabbay
- Seção de Virologia/Instituto Evandro Chagas, Secretaria de Vigilância em Saúde, Ministério da Saúde, Rodovia BR-316 km 7 s/n, Levilândia,, Ananindeua, Pará, 67030-000, Brazil.
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Coutinho CRM, Siqueira JAM, Machado RS, Bandeira RDS, Ferreira JL, Alves JCDS, Gabbay YB, Tavares FN. Enterovirus detection and serotyping of fecal material collected from three children living on the outskirts of Belém city, Amazon region, Brazil, during the first 3 years of life (1983-1986). J Med Virol 2020; 92:1075-1084. [PMID: 31840822 DOI: 10.1002/jmv.25656] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Accepted: 12/12/2019] [Indexed: 12/17/2022]
Abstract
In the current investigation, fecal material was obtained during a community-based longitudinal study conducted from 1983 to 1986. This study consisted of 71 children aged newborn to 3 years. A total of 216 samples from three of these children were screened by real-time quantitative polymerase chain reaction (RT-qPCR) for the presence of enteroviruses, and positive samples were serotyped by VP1 and VP3 sequencing of the viral genome. Of these, 12 (5.6%) came from symptomatic cases, and the remaining asymptomatic cases were collected fortnightly during the 3 years of study. A positivity of 63.4% (137/216) was obtained by RT-qPCR, with 58.3% (7/12) in relation to the symptomatic group and 63.7% (130/204) in relation to the asymptomatic group. The 137 positive samples were inoculated into the RD, HEp2C, and L20B cell lines, and the cytopathic effect was observed in 37.2% (51/137) samples. It was also possible to identify 40.9% (56/137), between isolated (n = 46) and nonisolated (n = 10). Enterovirus serotype diversity (n = 25) was identified in this study, with the predominant species being B (80.3%), followed by C (16.1%) and A (3.6%). Cases of reinfection by different serotypes were also observed in the three children studied. Analyses involving different age groups of these minors confirmed that the most affected age was between 12 to 24 months, with a prevalence of 77.6% (52/67). The enterovirus (EV) circulated in the 3 years of research, showed peaks in some months, without defined seasonality. This study demonstrated a high circulation and serotype diversity of EV in fecal samples, collected over 30 years ago. This endorsed the evaluation of important points of the epidemiology of these viruses, such as the presence of coinfection and reinfection of the same individual by different circulating serotypes. Understanding the frequency and duration of EV infections is important in determining their association with persistent diarrhea.
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Affiliation(s)
- Carla Rafaela Monteiro Coutinho
- Programa de Pós-graduação em Biologia Parasitária na Amazônia (PPGBPA), Universidade do Estado do Pará - UEPA, Belém, Pará, Brazil
| | - Jones Anderson Monteiro Siqueira
- Laboratório de Norovírus e outros Vírus Gastroentéricos-LNOV, Seção de Virologia-SAVIR, Instituto Evandro Chagas-IEC, Secretaria de Vigilância em Saúde, Ministério da Saúde, Ananindeua, Pará, Brazil
| | - Raiana Scerni Machado
- Laboratório de Enterovírus-LEV, Seção de Virologia-SAVIR, Instituto Evandro Chagas-IEC, Secretaria de Vigilância em Saúde, Ministério da Saúde, Ananindeua, Pará, Brazil
| | - Renato Da Silva Bandeira
- Laboratório de Rotavírus, Seção de Virologia-SAVIR, Instituto Evandro Chagas-IEC, Secretaria de Vigilância em Saúde, Ministério da Saúde, Ananindeua, Pará, Brazil
| | - James Lima Ferreira
- Laboratório de Enterovírus-LEV, Seção de Virologia-SAVIR, Instituto Evandro Chagas-IEC, Secretaria de Vigilância em Saúde, Ministério da Saúde, Ananindeua, Pará, Brazil
| | - Jainara Cristina Dos Santos Alves
- Laboratório de Enterovírus-LEV, Seção de Virologia-SAVIR, Instituto Evandro Chagas-IEC, Secretaria de Vigilância em Saúde, Ministério da Saúde, Ananindeua, Pará, Brazil
| | - Yvone Benchimol Gabbay
- Laboratório de Norovírus e outros Vírus Gastroentéricos-LNOV, Seção de Virologia-SAVIR, Instituto Evandro Chagas-IEC, Secretaria de Vigilância em Saúde, Ministério da Saúde, Ananindeua, Pará, Brazil
| | - Fernando Neto Tavares
- Laboratório de Enterovírus-LEV, Seção de Virologia-SAVIR, Instituto Evandro Chagas-IEC, Secretaria de Vigilância em Saúde, Ministério da Saúde, Ananindeua, Pará, Brazil
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das Neves Costa LCP, Teixeira DM, Portela ACR, de Lima ICG, da Silva Bandeira R, Sousa Júnior EC, Siqueira JAM, Resque HR, da Silva LD, Gabbay YB. Molecular and evolutionary characterization of norovirus GII.17 in the northern region of Brazil. BMC Infect Dis 2019; 19:1021. [PMID: 31791261 PMCID: PMC6889554 DOI: 10.1186/s12879-019-4628-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Accepted: 11/11/2019] [Indexed: 01/06/2023] Open
Abstract
Background Currently, norovirus (NoV) is associated with one-fifth of all acute gastroenteritis (AGE) cases worldwide. The NoV GII.17_2014 variant has been associated with gastroenteritis outbreaks in several Asian countries, replacing the previously dominant Sydney 2012 variant. There is limited data about circulation of this new strain in Brazil. This study aimed to describe the phylogenetic and evolutionary characteristics of the GII.17_2014 strains in the Northern region of Brazil. Methods NoV was detected by enzyme immunoassay (EIA) in 645 stool samples of AGE cases that were reported in Pará and Amazonas states during 2015–2016. All positive samples were tested for NoV GI and GII by reverse transcription polymerase chain reaction (RT-PCR) and the amplicons were subjected to genome sequencing. The GII.17-positive samples were retested by PCR using different sets of designed primers, which target a highly conserved capsid gene region. Next, the amplicons were sequenced and phylogenetically analyzed using Bayesian inferences. Results Of the 645 samples tested, 208 (32.2%) tested were positive for NoV by EIA, among which 95 (45.7%) were genotyped. Among the genotyped samples, 12 (12.6%) were characterized as GII.17_2014 with the first case detected in November 2015 (1/30, 3.3%) and the others in 2016 (11/65, 16.9%). All strains found in our study were clustered in clade D (epidemic strain). The uncorrelated log-normal model estimations calculated the rate of evolution for GII-17 strains as 1.95 × 10− 3 (1.28 × 10− 3–2.63 × 10− 3). In total, 36 nucleotide changes were observed after analyzing the VP1 sequence, among which 28 occurred in the P2 region. Conclusions These data demonstrate the evolutionary dynamics in NoV GII.17_2014 strains, which indicated high mutation rates with nucleotide substitutions and indels that are related to the elevated levels of antigenic diversity. This partly explains the increase in viral prevalence.
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Affiliation(s)
- Larissa Cristina Prado das Neves Costa
- Postgraduate Program in Parasitic Biology in the Amazon, Universidade do Estado do Pará, Instituto Evandro Chagas, Belém, PA, Brazil. .,Virology Section, Evandro Chagas Institute, Brazilian Ministry of Health, Rodovia BR-316, Km 7 s/n, Levilândia, Ananindeua, Pará, 67030-000, Brazil.
| | - Dielle Monteiro Teixeira
- Postgraduate Program in Virology, Instituto Evandro Chagas, Secretaria de Vigilância em Saúde, Ministério da Saúde, Ananindeua, PA, Brazil
| | - Ana Caroline Rodrigues Portela
- Virology Section, Instituto Evandro Chagas, Secretaria de Vigilância em Saúde, Ministério da Saúde, Ananindeua, PA, Brazil
| | - Ian Carlos Gomes de Lima
- Virology Section, Instituto Evandro Chagas, Secretaria de Vigilância em Saúde, Ministério da Saúde, Ananindeua, PA, Brazil
| | - Renato da Silva Bandeira
- Postgraduate Program in Virology, Instituto Evandro Chagas, Secretaria de Vigilância em Saúde, Ministério da Saúde, Ananindeua, PA, Brazil
| | - Edivaldo Costa Sousa Júnior
- Postgraduate Program in Virology, Instituto Evandro Chagas, Secretaria de Vigilância em Saúde, Ministério da Saúde, Ananindeua, PA, Brazil
| | | | - Hugo Reis Resque
- Virology Section, Instituto Evandro Chagas, Secretaria de Vigilância em Saúde, Ministério da Saúde, Ananindeua, PA, Brazil
| | - Luciana Damascena da Silva
- Virology Section, Instituto Evandro Chagas, Secretaria de Vigilância em Saúde, Ministério da Saúde, Ananindeua, PA, Brazil
| | - Yvone Benchimol Gabbay
- Virology Section, Instituto Evandro Chagas, Secretaria de Vigilância em Saúde, Ministério da Saúde, Ananindeua, PA, Brazil
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de Deus DR, Teixeira DM, Dos Santos Alves JC, Smith VC, da Silva Bandeira R, Siqueira JAM, de Sá Morais LLC, Resque HR, Gabbay YB. Occurrence of norovirus genogroups I and II in recreational water from four beaches in Belém city, Brazilian Amazon region. J Water Health 2019; 17:442-454. [PMID: 31095519 DOI: 10.2166/wh.2019.304] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
This study aimed to investigate the presence of norovirus (NoV) in recreational waters of four estuarine beaches located in Mosqueiro Island, Belém city, Brazilian Amazon, during two years of monitoring (2012 and 2013). NoV particles were concentrated on filtering membrane by the adsorption-elution method and detected by semi-nested RT-PCR (reverse transcription polymerase chain reaction) and sequencing. NoV positivity was observed in 37.5% (39/104) of the surface water samples, with genogroup GI (69.2%) occurring at a higher frequency than GII (25.7%), with a cocirculation of both genogroups in two samples (5.1%). This virus was detected in all sampling points analyzed, showing the highest detection rate at the Paraíso Beach (46.2%). Statistically, there was a dependence relationship between tide levels and positive detection, with a higher frequency at high tide (46.7%) than at low tide (25%) periods. Months with the highest detection rates (April 2012 and April/May 2013) were preceded by periods of higher precipitation (March 2012 and February/March 2013). Phylogenetic analysis showed the circulation of the old pandemic variant (GII.4-US_95-96) and GI.8. The NoV detection demonstrated viral contamination on the beaches and evidenced the health risk to bathers, mainly through recreational activities such as bathing, and highlighted the importance of including enteric viruses research in the recreational water quality monitoring.
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Affiliation(s)
- Danielle Rodrigues de Deus
- Postgraduate Program in Parasitary Biology in the Amazon, State University of Pará, Tv. Perebebui, 2623, Marco, Belém, PA CEP 66087-662, Brazil
| | - Dielle Monteiro Teixeira
- Virology Section, Evandro Chagas Institute, Health Surveillance Secretariat, Brazilian Ministry of Health, Br. 316 Km 07 S/N, Levilandia, Ananindeua, PA CEP 67030-000, Brazil E-mail:
| | - Jainara Cristina Dos Santos Alves
- Virology Section, Evandro Chagas Institute, Health Surveillance Secretariat, Brazilian Ministry of Health, Br. 316 Km 07 S/N, Levilandia, Ananindeua, PA CEP 67030-000, Brazil E-mail:
| | - Vanessa Cavaleiro Smith
- Postgraduate Program in Virology, Evandro Chagas Institute, Health Surveillance Secretariat, Brazilian Ministry of Health, Br. 316 Km 07 S/N, Levilandia, Ananindeua, PA CEP 67030-000, Brazil
| | - Renato da Silva Bandeira
- Virology Section, Evandro Chagas Institute, Health Surveillance Secretariat, Brazilian Ministry of Health, Br. 316 Km 07 S/N, Levilandia, Ananindeua, PA CEP 67030-000, Brazil E-mail:
| | - Jones Anderson Monteiro Siqueira
- Virology Section, Evandro Chagas Institute, Health Surveillance Secretariat, Brazilian Ministry of Health, Br. 316 Km 07 S/N, Levilandia, Ananindeua, PA CEP 67030-000, Brazil E-mail:
| | - Lena Líllian Canto de Sá Morais
- Environment Section, Evandro Chagas Institute, Health Surveillance Secretariat, Brazilian Ministry of Health, Br. 316 Km 07 S/N, Levilandia, Ananindeua, PA CEP 67030-000, Brazil
| | - Hugo Reis Resque
- Virology Section, Evandro Chagas Institute, Health Surveillance Secretariat, Brazilian Ministry of Health, Br. 316 Km 07 S/N, Levilandia, Ananindeua, PA CEP 67030-000, Brazil E-mail:
| | - Yvone Benchimol Gabbay
- Virology Section, Evandro Chagas Institute, Health Surveillance Secretariat, Brazilian Ministry of Health, Br. 316 Km 07 S/N, Levilandia, Ananindeua, PA CEP 67030-000, Brazil E-mail:
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Bitencurt ELR, Siqueira JAM, Medeiros TB, Bandeira RDS, de Souza Oliveira D, de Paula Souza E Guimarães RJ, da Silva Soares L, Macarenhas JDP, Teixeira DM, Silva RSU, Loureiro ECB, de Moraes Silva MC, da Silva LD, Gabbay YB. Epidemiological and molecular investigation of norovirus and astrovirus infections in Rio Branco, Acre, Northern Brazil: A retrospective study. J Med Virol 2019; 91:997-1007. [PMID: 30624790 DOI: 10.1002/jmv.25395] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Revised: 11/06/2018] [Accepted: 12/06/2018] [Indexed: 01/18/2023]
Abstract
Norovirus (NoV) is a major cause of nonbacterial acute gastroenteritis (AGE) outbreaks worldwide, with infections reported in semiclosed environments, particularly in hospitals and nursing homes. Astrovirus (HAstV) is prevalent worldwide, especially in developing countries. We aimed to determine the prevalence, spatial distribution, and genetic diversity of NoV and HAstV in children under 5 years of age in Rio Branco city, Acre State, Amazon Region, Brazil. Stool samples from children with (n = 240) and without (n = 248) AGE were collected from January to December 2012 from seven neighborhoods. The overall NoV prevalence was 12.3% (60 of 488); representing 15.8% (38 of 240) of the symptomatic samples and 8.9% (22 of 248) of the controls. HAstVs infection was observed in 4.7% (23 of 488) of the samples tested, 6.2% (15 of 240) of AGE cases, and 2.4% (6 of 248) of the controls (plus two without information about feces consistency). Infections were found in all age groups with higher frequency in children less than two years of age, for both viruses. NoV was detected in all neighborhoods, with a higher concentration in the fourth (30%; 18 of 60). NoV nucleotide sequencing performed in 86.7% (52 of 60) of the positive samples showed the circulation of the strains GII.4 (57.7%; 30 of 52), GIIPe/GII.4 (19.2%; 10 of 52), GII.7, GII.Pg/GII.1, and GII.Pc (3.8%; 2 of 52 for each), GII.6 and GII.Pg (1.9%; 1 of 52 for each), and GI.3 (7.7%; 4 of 52). Three GII.4 variants were detected: Den Haag_2006b (n = 1), New Orleans_2009 (n = 1), and Sydney_2012 (n = 14). HAstV types HAstV-1a (81.8%; 9 of 11) and HAstV-2c (18.2%; 2 of 11) were observed in the 47.8% (11 of 23) of characterized samples. This is the first data obtained in Acre State regarding the prevalence of these viruses and provides epidemiological and molecular information for a better understanding of their role among children with and without AGE.
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Affiliation(s)
| | | | - Tallyta Barros Medeiros
- Evandro Chagas Institute; Health Surveillance Secretariat, Brazilian Ministry of Health, Ananindeua, Pará, Brazil
| | - Renato da Silva Bandeira
- Evandro Chagas Institute; Health Surveillance Secretariat, Brazilian Ministry of Health, Ananindeua, Pará, Brazil
| | - Darleise de Souza Oliveira
- Evandro Chagas Institute; Health Surveillance Secretariat, Brazilian Ministry of Health, Ananindeua, Pará, Brazil
| | | | - Luana da Silva Soares
- Evandro Chagas Institute; Health Surveillance Secretariat, Brazilian Ministry of Health, Ananindeua, Pará, Brazil
| | | | - Dielle Monteiro Teixeira
- Evandro Chagas Institute; Health Surveillance Secretariat, Brazilian Ministry of Health, Ananindeua, Pará, Brazil
| | - Rita S U Silva
- Municipality Secretary of Health of Rio Branco, Acre, Brazil
| | | | | | - Luciana Damascena da Silva
- Evandro Chagas Institute; Health Surveillance Secretariat, Brazilian Ministry of Health, Ananindeua, Pará, Brazil
| | - Yvone Benchimol Gabbay
- Evandro Chagas Institute; Health Surveillance Secretariat, Brazilian Ministry of Health, Ananindeua, Pará, Brazil
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Costa LCPDN, Siqueira JAM, Portal TM, Sousa Júnior EC, Linhares ADC, Gabbay YB, Resque HR. Detection and genotyping of human adenovirus and sapovirus in children with acute gastroenteritis in Belém, Pará, between 1990 and 1992: first detection of GI.7 and GV.2 sapoviruses in Brazil. Rev Soc Bras Med Trop 2017; 50:621-628. [DOI: 10.1590/0037-8682-0198-2017] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2017] [Accepted: 09/19/2017] [Indexed: 01/12/2023] Open
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Siqueira JAM, Oliveira DDS, Carvalho TCND, Portal TM, Justino MCA, da Silva LD, Resque HR, Gabbay YB. Astrovirus infection in hospitalized children: Molecular, clinical and epidemiological features. J Clin Virol 2017; 94:79-85. [PMID: 28772169 DOI: 10.1016/j.jcv.2017.07.01] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2017] [Revised: 06/19/2017] [Accepted: 07/24/2017] [Indexed: 05/26/2023]
Abstract
BACKGROUND Astrovirus (HAstV) is a common viral pathogen that causes gastroenteritis worldwide. It is classified into eight classical human types (HAstV-1/8) and seven other less prevalent types, described as HAstV VA1, VA2, VA3, VA4, MLB-1, MLB-2 and MLB-3. During outbreaks, the elderly and children are the most affected, and the spread of the virus is associated with person-to-person contact, food ingestion and contaminated water. OBJECTIVES The aim of the present study was to investigate the prevalence of infection and genetic diversity of HAstV strains. Samples were collected from children with acute gastroenteritis admitted to a large pediatric hospital during a surveillance period of three years (2008-2011) in Belém city, Pará State, Amazon Region, Northern Brazil. STUDY DESIGN Screening and genotyping tests were conducted using RT-PCR to detect the classical and non-classical HAstV types using specific primers. A semi-nested RT-PCR protocol was developed to improve viral detection in samples with a low viral load. RESULTS The overall positivity observed in this study was 3.9% (19/483). The age distribution showed a high prevalence of positive cases in children under one year old (5.3%). We found vomiting associated with 75% of the positive cases, fever with 82.3%, and dehydration with 76.9%. Most patients with positive cases demonstrated two to five days of diarrhea, two to three episodes of vomiting during hospitalization, and three bowel movements per day. Co-infection with HAstV and norovirus was observed in three cases (15.8%), and no pattern of seasonality or any relationship between the HAstV positivity rate and climate variables was observed. Eighteen positive samples (94.7%-18/19) were genotyped based on the ORF 2 region, and the greatest prevalence was of HAstV-1a (66.6%-12/18), followed by HAstV-2 (22.2%-4/18, comprising two type-2b and two type-2c genotypes), HAstV-3c (5.6%-1/18) and HAstV-4c (5.6%-1/18). No non-classical types were detected in the clinical samples analyzed. CONCLUSIONS The present study showed that although HAstV infections occur at low frequency, they are involved in severe pediatric cases of acute gastroenteritis presenting with a high diversity of strains, including the lineages 3c and 4c, which were never before detected in Brazil.
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Affiliation(s)
- Jones Anderson Monteiro Siqueira
- Virology Section, Evandro Chagas Institute, Health Surveillance Secretariat, Brazilian Ministry of Health, Ananindeua, Pará, Brazil.
| | - Darleise de Souza Oliveira
- Virology Section, Evandro Chagas Institute, Health Surveillance Secretariat, Brazilian Ministry of Health, Ananindeua, Pará, Brazil.
| | | | - Thayara Morais Portal
- Postgraduate Program in Virology, Evandro Chagas Institute, Ananindeua, Pará, Brazil.
| | - Maria Cleonice Aguiar Justino
- Virology Section, Evandro Chagas Institute, Health Surveillance Secretariat, Brazilian Ministry of Health, Ananindeua, Pará, Brazil.
| | - Luciana Damascena da Silva
- Virology Section, Evandro Chagas Institute, Health Surveillance Secretariat, Brazilian Ministry of Health, Ananindeua, Pará, Brazil.
| | - Hugo Reis Resque
- Virology Section, Evandro Chagas Institute, Health Surveillance Secretariat, Brazilian Ministry of Health, Ananindeua, Pará, Brazil.
| | - Yvone Benchimol Gabbay
- Virology Section, Evandro Chagas Institute, Health Surveillance Secretariat, Brazilian Ministry of Health, Ananindeua, Pará, Brazil.
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Costa STPD, Fumian TM, Lima ICGD, Siqueira JAM, Silva LDD, Hernández JDM, Lucena MSSD, Reymão TKA, Soares LDS, Mascarenhas JDP, Gabbay YB. High prevalence of norovirus in children with sporadic acute gastroenteritis in Manaus, Amazon Region, northern Brazil. Mem Inst Oswaldo Cruz 2017; 112:391-395. [PMID: 28591398 PMCID: PMC5446227 DOI: 10.1590/0074-02760160357] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2016] [Accepted: 02/10/2017] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND Norovirus (NoV) is a major cause of acute gastroenteritis (AGE) worldwide, especially in children under five years. Studies involving the detection and molecular characterisation of NoV have been performed in Brazil, demonstrating its importance as an etiological agent of AGE. OBJECTIVES The objectives of this study were to investigate the frequency of human NoV and to genotype the strains isolated from 0-14-year-old patients of AGE in Manaus, Brazil, over a period of two years. METHODS A total of 426 faecal samples were collected between January 2010 and December 2011. All samples were tested for the presence of NoV antigens using a commercial enzyme immunoassay kit. RNA was extracted from all faecal suspensions and reverse transcription-polymerase chain reaction (RT-PCR) for the NoV-polymerase partial region was performed as a trial test. Positive samples were then subjected to PCR with specific primers for partial capsid genes, which were then sequenced. FINDINGS NoV was detected in 150 (35.2%) faecal samples, for at least one of the two techniques used. NoV was detected in children from all age groups, with the highest positivity observed among the group of 1-2 years old. Clinically, fever was verified in 43% of the positive cases and 46.3% of the negative cases, and vomiting was observed in 75.8% and 70.8% cases in these groups, respectively. Monthly distribution showed that the highest positivity was observed in January 2010 (81.2%), followed by February and April 2010 and March 2011, when the positivity rate reached almost 50%. Phylogenetic analyses performed with 65 positive strains demonstrated that 58 (89.2%) cases of NoV belonged to genotype GII.4, five (7.7%) to GII.6, and one (1.5%) each to GII.7 and GII.3. MAIN CONCLUSIONS This research revealed a high circulation of NoV GII.4 in Manaus and contributed to the understanding of the importance of this virus in the aetiology of AGE cases, especially in a region with such few studies available.
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Affiliation(s)
| | - Tulio Machado Fumian
- Fundação Oswaldo Cruz-Fiocruz, Instituto Oswaldo Cruz, Laboratório de Virologia Comparada e Ambiental, Rio de Janeiro, RJ, Brasil
| | - Ian Carlos Gomes de Lima
- Secretaria de Vigilância em Saúde, Instituto Evandro Chagas, Seção de Virologia, Ananindeua, PA, Brasil
| | | | | | | | | | | | - Luana da Silva Soares
- Secretaria de Vigilância em Saúde, Instituto Evandro Chagas, Seção de Virologia, Ananindeua, PA, Brasil
| | | | - Yvone Benchimol Gabbay
- Secretaria de Vigilância em Saúde, Instituto Evandro Chagas, Seção de Virologia, Ananindeua, PA, Brasil
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Siqueira JAM, Júnior ECS, Linhares ADC, Gabbay YB. Molecular analysis of norovirus in specimens from children enrolled in a 1982-1986 study in Belém, Brazil: A community-based longitudinal study. J Med Virol 2017; 89:1894-1903. [PMID: 28321885 DOI: 10.1002/jmv.24812] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Accepted: 03/08/2017] [Indexed: 01/05/2023]
Abstract
Fecal specimens were collected during a longitudinal, community-based study in the city of Belém, North Brazil, that was conducted over 3 years (October 1982 to March 1986), in which 20 children were included from birth to 3 years of age. A total of 229 fecal samples were screened by real time RT-PCR targeting the junction region (ORF 1/2) of the norovirus (NoV) genome. NoV-positive samples were subjected to PCR and sequencing of the viral polymerase (ORF1) and viral protein 1 (VP1) genes (ORF2). The junction region was also sequenced to assess for recombination when ORF1 and ORF2 genotyping results were dissimilar. Samples classified as GII.P4/GII.4 were further characterized by sequencing the P2 subdomain of the viral capsid to determine possible alterations. An overall positivity of 16.1% (37/229) was observed, including GI (16.2%-6/37) and GII (83.8%-31/37) genogroups. Cases of NoV reinfection in at least 2-month intervals were observed, and 12 children developed at least one case of asymptomatic NoV infection. In total, 48.6% (18/37) NoV-positive samples were subjected to nucleotide sequencing analysis targeting the following polymerase genes: GI.P3 (n = 1), GII.Pa (n = 1), GII.Pc (n = 1), GII.P4 (n = 5), GII.P6 (n = 5), GII.P7 (n = 3), GII.P12 (n = 1), and GII.P22 (n = 1). For the VP1 gene, characterization was performed in 14 (77.8%) samples: GI.3 (n = 1), GII.2 (n = 1), GII.4 (n = 4), GII.6 (n = 4), GII.7 (n = 1), GII.12 (n = 1), GII.14 (n = 1), and GII.23 (n = 1). Recombination events were confirmed in three cases (GII.P12/GII.2, GII.P7/GII.14, and GII.Pa/GII.12), and four samples genotyped as GII.P4/GII.4 were analyzed to identify variants. None had contemporary counterparts. Three children developed consecutive NoV infections by different genotypes. The present report documents the importance of NoV as a cause of childhood infection during a longitudinal study conducted more than 30 years ago.
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Affiliation(s)
| | | | - Alexandre da Costa Linhares
- Virology Section, Evandro Chagas Institute, Health Surveillance Secretariat, Brazilian Ministry of Health. Ananindeua, Pará, Brazil
| | - Yvone Benchimol Gabbay
- Virology Section, Evandro Chagas Institute, Health Surveillance Secretariat, Brazilian Ministry of Health. Ananindeua, Pará, Brazil
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Siqueira JAM, Bandeira RDS, Oliveira DDS, dos Santos LFP, Gabbay YB. Genotype diversity and molecular evolution of noroviruses: A 30-year (1982-2011) comprehensive study with children from Northern Brazil. PLoS One 2017; 12:e0178909. [PMID: 28604828 PMCID: PMC5467842 DOI: 10.1371/journal.pone.0178909] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2017] [Accepted: 05/19/2017] [Indexed: 01/19/2023] Open
Abstract
A chronologically comprehensive 30-year study was conducted that involved children living in Belém, in the Amazon region of Northern Brazil, who participated in eight different studies from October 1982 to April 2011. The children were followed either in the community or in health units and hospitals in order to identify the norovirus genotypes involved in infections during this time. A total of 2,520 fecal specimens were obtained and subjected to RT-PCR and nucleotide sequencing for regions A, B, C, D and P2 of the viral genome. An overall positivity of 16.9% (n = 426) was observed, and 49% of the positive samples were genotyped (208/426), evidencing the presence of several genotypes as follows: Polymerase gene (GI.P4, GII.Pa, GII.Pc, GII.Pe, GII.Pg, GII.Pj, GII.P3, GII.P4, GII.P6, GII.P7, GII.P8, GII.P12, GII.P13, GII.P14, GII.P21, GII.P22), and VP1 gene (GI.3, GI.7, GII.1, GII.2, GII.3, GII.4, GII.6, GII.7, GII.8, GII.10, GII.12, GII.14, GII.17, GII.23). The GII.P4/GII.4 genotype determined by both open reading frames (ORFs) (partial polymerase and VP1 genes) was found for 83 samples, and analyses of the subdomain P2 region showed 10 different variants: CHDC (1970s), Tokyo (1980s), Bristol_1993, US_95/96, Kaiso_2003, Asia_2003, Hunter_2004, Yerseke_2006a, Den Haag_2006b (subcluster “O”) and New Orleans_2009. Recombination events were confirmed in 47.6% (n = 20) of the 42 samples with divergent genotyping by ORF1 and ORF2 and with probable different breakpoints within the viral genome. The evolutionary analyses estimated a rate of evolution of 1.02 x 10−2 and 9.05 x 10−3 subs./site/year using regions C and D from the VP1 gene, respectively. The present research shows the broad genetic diversity of the norovirus that infected children for 30 years in Belém. These findings contribute to our understanding of noroviruses molecular epidemiology and viral evolution and provide a baseline for vaccine design.
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Affiliation(s)
- Jones Anderson Monteiro Siqueira
- Laboratório de Norovírus e outros Vírus Gastroentéricos—LNVE, Seção de Virologia—SAVIR, Instituto Evandro Chagas—IEC, Secretaria de Vigilância em Saúde, Ministério da Saúde, Ananindeua, Pará, Brazil
- * E-mail:
| | - Renato da Silva Bandeira
- Seção de Virologia–SAVIR, Instituto Evandro Chagas—IEC, Secretaria de Vigilância em Saúde, Ministério da Saúde, Ananindeua, Pará, Brazil
| | - Darleise de Souza Oliveira
- Seção de Virologia–SAVIR, Instituto Evandro Chagas—IEC, Secretaria de Vigilância em Saúde, Ministério da Saúde, Ananindeua, Pará, Brazil
| | - Liann Filiphe Pereira dos Santos
- Laboratório de Norovírus e outros Vírus Gastroentéricos—LNVE, Seção de Virologia—SAVIR, Instituto Evandro Chagas—IEC, Secretaria de Vigilância em Saúde, Ministério da Saúde, Ananindeua, Pará, Brazil
| | - Yvone Benchimol Gabbay
- Laboratório de Norovírus e outros Vírus Gastroentéricos—LNVE, Seção de Virologia—SAVIR, Instituto Evandro Chagas—IEC, Secretaria de Vigilância em Saúde, Ministério da Saúde, Ananindeua, Pará, Brazil
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Siqueira JAM, Sousa Júnior EC, Linhares ADC, Gabbay YB. Molecular analysis of norovirus in specimens from children enrolled in a 1982-1986 study in Belém, Brazil: A community-based longitudinal study. J Med Virol 2017; 89:1539-1549. [DOI: 10.1002/jmv.24817] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2016] [Accepted: 03/08/2017] [Indexed: 11/05/2022]
Affiliation(s)
| | | | - Alexandre da Costa Linhares
- Virology Section, Evandro Chagas Institute; Health Surveillance Secretariat, Brazilian Ministry of Health; Ananindeua Pará Brazil
| | - Yvone Benchimol Gabbay
- Virology Section, Evandro Chagas Institute; Health Surveillance Secretariat, Brazilian Ministry of Health; Ananindeua Pará Brazil
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Silva LDD, Bandeira RDS, Junior ECS, Lima ICGD, da Penha Júnior ET, Teixeira DM, Siqueira JAM, Resque HR, de Abreu Campos EMN, Justino MCA, Linhares AC, Gabbay YB. Detection and genetic characterization of the emergent GII.17_2014 norovirus genotype among children with gastroenteritis from Northern Brazil. Infect Genet Evol 2016; 48:1-3. [PMID: 27923768 DOI: 10.1016/j.meegid.2016.11.027] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2016] [Revised: 10/21/2016] [Accepted: 11/27/2016] [Indexed: 12/23/2022]
Abstract
Norovirus is the most important cause of viral gastroenteritis outbreaks worldwide. Recently, a novel GII.17 norovirus variant emerged and caused epidemics in Asian countries, replacing the GII.4 Sydney 2012 strain in hospitalized cases. In this study we describe the emergence of this novel NoV GII.17_2014 strain in Brazil.
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Siqueira JAM, Bandeira RDS, Justino MCA, Linhares ADC, Gabbay YB. Characterization of novel intragenotype recombination events among norovirus pandemic GII.4 variants. Infection, Genetics and Evolution 2016; 44:361-366. [DOI: 10.1016/j.meegid.2016.07.037] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Revised: 07/28/2016] [Accepted: 07/28/2016] [Indexed: 12/17/2022]
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Portal TM, Siqueira JAM, Costa LCPDN, Lima ICGD, Lucena MSSD, Bandeira RDS, Linhares ADC, Luz CRNED, Gabbay YB, Resque HR. Caliciviruses in hospitalized children, São Luís, Maranhão, 1997-1999: detection of norovirus GII.12. Braz J Microbiol 2016; 47:724-30. [PMID: 27161199 PMCID: PMC4927645 DOI: 10.1016/j.bjm.2016.04.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2015] [Accepted: 01/04/2016] [Indexed: 01/12/2023] Open
Abstract
Gastroenteritis is one of the most common diseases during childhood, with norovirus (NoV) and sapovirus (SaV) being two of its main causes. This study reports for the first time the incidence of these viruses in hospitalized children with and without gastroenteritis in São Luís, Maranhão. A total of 136 fecal samples were tested by enzyme immunoassays (EIA) for the detection of NoV and by reverse transcription-polymerase chain reaction (RT-PCR) for detection of both NoV and SaV. Positive samples for both agents were subjected to sequencing. The overall frequency of NoV as detected by EIA and RT-PCR was 17.6% (24/136) and 32.6% (15/46), respectively in diarrheic patients and 10.0% (9/90) in non-diarrheic patients (p<0.01). Of the diarrheic patients, 17% had fever, vomiting and anorexia, and 13% developed fever, vomiting and abdominal pain. Of the 24 NoV-positive samples, 50% (12/24) were sequenced and classified as genotypes GII.3 (n=1), GII.4 (6), GII.5 (1), GII.7 (2), GII.12 (1) and GII.16 (1). SaV frequency was 9.8% (11/112), with 22.6% (7/31) in diarrheic patients and 4.9% (4/81) in nondiarrheic (p=0.04) ones. In diarrheic cases, 27.3% had fever, vomiting and anorexia, whereas 18.2% had fever, anorexia and abdominal pain. One SaV-positive sample was sequenced and classified as GII.1. These results show a high genetic diversity of NoV and higher prevalence of NoV compared to SaV. Our data highlight the importance of NoV and SaV as enteropathogens in São Luís, Maranhão.
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Affiliation(s)
- Thayara Morais Portal
- Programa de Pós-Graduação em Biologia Parasitária na Amazônia, Universidade do Estado do Pará, Belém, Pará, Brazil
| | | | | | | | | | | | | | | | | | - Hugo Reis Resque
- Seção de Virologia, Instituto Evandro Chagas/SVS/MS, Ananindeua, Pará, Brazil.
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Lobo PDS, Guerra SDFDS, Siqueira JAM, Soares LDS, Gabbay YB, Linhares AC, Mascarenhas JDP. Phylogenetic analysis of human group C rotavirus in hospitalized children with gastroenteritis in Belém, Brazil. J Med Virol 2015; 88:728-33. [PMID: 26369400 DOI: 10.1002/jmv.24379] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/10/2015] [Indexed: 11/10/2022]
Abstract
Group C rotavirus (RVC) is potentially an important pathogen associated with acute gastroenteritis (AG), especially in outbreaks. This study aims to detect and molecularly characterize RVC in hospitalized children with AG in Belém, Brazil. From May 2008 to April 2011, 279 stools were subjected to reverse-transcription polymerase chain reaction targeting VP7, VP6, VP4, and NSP4 genes. RVC positivity rate was 2.1% (6/279) and phylogenetic analysis of positive samples yields genotype G4-P[2]-I2-E2. No evidence of zoonotic transmission and VP7 gene demonstrated close relationship with Asian strains. RVC surveillance is worth to expand information on evolutionary and epidemiological features of this virus.
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Siqueira JAM, Linhares ADC, Gonçalves MDS, Carvalho TCND, Justino MCA, Mascarenhas JDP, Gabbay YB. Group A rotavirus and norovirus display sharply distinct seasonal profiles in Belém, northern Brazil. Mem Inst Oswaldo Cruz 2014; 108:661-4. [PMID: 23903985 DOI: 10.1590/s0074-02762013000500020] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2012] [Accepted: 02/14/2013] [Indexed: 11/22/2022] Open
Abstract
Several viruses have been associated with acute gastroenteritis (AGE), and group A rotavirus (RVA) and norovirus (NoV) are the most prevalent. This study aimed to assess their prevalence among children hospitalised for diarrhoea during a three-year surveillance study. From May 2008-April 2011, overall positivity rates of 21.6% (628/2904) and 35.4% (171/483) were observed for RVA and NoV, respectively. The seasonality observed indicated distinct patterns when both viruses were compared. This finding may explain why hospitalisation for AGE remains constant throughout the year. Continuous AGE monitoring is needed to better assess the patterns of infection.
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Carvalho TCND, Gabbay YB, Siqueira JAM, Linhares ADC, Parente AT. Conhecimento sobre gastroenterite viral pelos profissionais de saúde de um hospital materno-infantil de referência no Estado do Pará, Brasil. ACTA ACUST UNITED AC 2014. [DOI: 10.5123/s2176-62232014000300002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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Gabbay YB, Siqueira JAM, Lima ICGD, Teixeira DM, Aragão GC, Barbagelata LS, Oliveira DDS, Garcia CGR, Galindo DDB, Mascarenhas JDP, Linhares AC. Norovirus outbreak in a cruise ship along the Brazilian coast, March 2011. ACTA ACUST UNITED AC 2014. [DOI: 10.5123/s2176-62232014000100005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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Siqueira JAM, Linhares ADC, Gonçalves MDS, de Carvalho TCN, Justino MCA, Mascarenhas JDP, Gabbay YB. Group A rotavirus and norovirus display sharply distinct seasonal profiles in Belém, northern Brazil. Mem Inst Oswaldo Cruz 2013. [PMID: 23903985 PMCID: PMC3970597 DOI: 10.1590/0074-0276108052013020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Several viruses have been associated with acute gastroenteritis (AGE), and group A rotavirus (RVA) and norovirus (NoV) are the most prevalent. This study aimed to assess their prevalence among children hospitalised for diarrhoea during a three-year surveillance study. From May 2008-April 2011, overall positivity rates of 21.6% (628/2904) and 35.4% (171/483) were observed for RVA and NoV, respectively. The seasonality observed indicated distinct patterns when both viruses were compared. This finding may explain why hospitalisation for AGE remains constant throughout the year. Continuous AGE monitoring is needed to better assess the patterns of infection.
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Aragão GC, Mascarenhas JDP, Kaiano JHL, de Lucena MSS, Siqueira JAM, Fumian TM, Hernandez JDM, de Oliveira CS, Oliveira DDS, Araújo EDC, Soares LDS, Linhares AC, Gabbay YB. Norovirus diversity in diarrheic children from an African-descendant settlement in Belém, Northern Brazil. PLoS One 2013; 8:e56608. [PMID: 23457593 PMCID: PMC3574080 DOI: 10.1371/journal.pone.0056608] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2012] [Accepted: 01/15/2013] [Indexed: 11/18/2022] Open
Abstract
Norovirus (NoV), sapovirus (SaV) and human astrovirus (HAstV) are viral pathogens that are associated with outbreaks and sporadic cases of gastroenteritis. However, little is known about the occurrence of these pathogens in relatively isolated communities, such as the remnants of African-descendant villages ("Quilombola"). The objective of this study was the frequency determination of these viruses in children under 10 years, with and without gastroenteritis, from a "Quilombola" Community, Northern Brazil. A total of 159 stool samples were obtained from April/2008 to July/2010 and tested by an enzyme immunoassay (EIA) and reverse transcription-polymerase chain reaction (RT-PCR) to detect NoV, SaV and HAstV, and further molecular characterization was performed. These viruses were detected only in the diarrheic group. NoV was the most frequent viral agent detected (19.7%-16/81), followed by SaV (2.5%-2/81) and HAstV (1.2%-1/81). Of the 16 NoV-positive samples, 14 were sequenced with primers targeting the B region of the polymerase (ORF1) and the D region of the capsid (ORF2). The results showed a broad genetic diversity of NoV, with 12 strains being classified as GII-4 (5-41.7%), GII-6 (3-25%), GII-7 (2-16.7%), GII-17 (1-8.3%) and GI-2 (1-8.3%), as based on the polymerase region; 12 samples were classified, based on the capsid region, as GII-4 (6-50%, being 3-2006b variant and 3-2010 variant), GII-6 (3-25%), GII-17 (2-16.7%) and GII-20 (1-8.3%). One NoV-strain showed dual genotype specificity, based on the polymerase and capsid region (GII-7/GII-20). This study provides, for the first time, epidemiological and molecular information on the circulation of NoV, SaV and HAstV in African-descendant communities in Northern Brazil and identifies NoV genotypes that were different from those detected previously in studies conducted in the urban area of Belém. It remains to be determined why a broader NoV diversity was observed in such a semi-isolated community.
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Siqueira JAM, Linhares ADC, de Carvalho TCN, Aragão GC, Oliveira DDS, Dos Santos MC, de Sousa MS, Justino MCA, Mascarenhas JDP, Gabbay YB. Norovirus infection in children admitted to hospital for acute gastroenteritis in Belém, Pará, Northern Brazil. J Med Virol 2013; 85:737-44. [PMID: 23359323 DOI: 10.1002/jmv.23506] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/22/2012] [Indexed: 11/05/2022]
Abstract
Noroviruses are the leading cause of epidemic, non-bacterial outbreaks of acute gastroenteritis, and are also a major cause of sporadic acute gastroenteritis in infants. The aim of the present study was to identify norovirus infections in children not infected by rotavirus admitted to hospital for acute gastroenteritis in Belém. A total of 348 fecal specimens were obtained from children with diarrhea aged less than 5 years, all of whom had tested negative for rotavirus, between May 2008 and April 2010. Fecal samples were screened for norovirus antigen using enzyme-immunoassay (EIA). Specimens were subjected to reverse-transcription polymerase chain reaction (RT-PCR) using the primers Mon432/434-Mon431/433 for detection of the GI and GII norovirus strains, respectively. Based on both methods, the overall norovirus positivity rate was 36.5% (127/348). Of the 169 samples collected in the first year, 44.4% (n = 75) tested positive for norovirus using both methods, 35.5% (n = 60) by EIA and 40.8% (n = 69) by RT-PCR. Using RT-PCR as a reference standard, a sensitivity of 78.3%, specificity of 94%, and agreement of 87.6% were recorded. Genome sequencing was obtained for 22 (31.9%) of the 69 positive samples, of which 90.9% (20/22) were genotype GII.4d and 9.1% (2/22) were genotype GII.b. Norovirus infection was most frequent in children under 2 years of age (41.5%-115/277). The peak incidence (62.1%) of norovirus-related acute gastroenteritis in these patients (not infected by rotavirus) was observed in February 2010. These findings emphasize the importance of norovirus as a cause of severe acute gastroenteritis among children in Belém, Pará, Northern Brazil.
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Siqueira JAM, Linhares ADC, Oliveira DDS, Soares LDS, Lucena MSS, Wanzeller ALM, Mascarenhas JDP, Gabbay YB. Evaluation of third-generation RIDASCREEN enzyme immunoassay for the detection of norovirus antigens in stool samples of hospitalized children in Belém, Pará, Brazil. Diagn Microbiol Infect Dis 2011; 71:391-5. [PMID: 22001621 DOI: 10.1016/j.diagmicrobio.2011.08.023] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2011] [Revised: 08/03/2011] [Accepted: 08/27/2011] [Indexed: 11/25/2022]
Abstract
Noroviruses (NoVs) are major agents of gastroenteritis outbreaks and hospitalization worldwide. This study evaluated the sensitivity and specificity of the commercially available third-generation RIDASCREEN® Norovirus Enzyme Immunoassay (EIA) kit in comparison to the reverse transcription-polymerase chain reaction (RT-PCR) to detect NoVs in hospitalized children with gastroenteritis. An agreement of 88% (81/92) was observed when comparing EIA with RT-PCR. A sensitivity of 92% and a specificity of 83.3% were demonstrated. Eleven samples were positive by 1 method only (4 RT-PCR/7 EIA). Fourteen samples were sequenced and all classified as NoV genogroup GII-4. The 7 positive only by EIA were also evaluated by electron microscopy, and in 3 (42.9%) samples viral particles with a suggestive morphology of NoVs were visualized. These same samples were tested by seminested-RT-PCR with a positivity of 85.7%. The results obtained in this study demonstrated a significant improvement in the sensitivity and specificity of this updated assay.
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