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de Sant'Anna RR, Nunes PCG, Dos Santos FB. Urban arbovirus exposure in blood donations from an endemic area of Brazil. Vox Sang 2024; 119:1006-1011. [PMID: 38970294 DOI: 10.1111/vox.13707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Revised: 06/06/2024] [Accepted: 06/13/2024] [Indexed: 07/08/2024]
Abstract
BACKGROUND AND OBJECTIVES In Brazil, urban arboviruses, such as dengue virus (DENV), Zika virus (ZIKV) and chikungunya virus (CHIKV), constitute a major public health problem, and due to their endemicity and asymptomatic cases, they pose a potential threat to blood donations. Rio de Janeiro (RJ), Brazil, has been impacted by extensive DENV epidemics over the last 30 years and, after 2015, by CHIKV and ZIKV. MATERIALS AND METHODS Urban arboviruses DENV, ZIKV and CHIKV were investigated in blood donations (n = 778) at the State Institute of Hematology, HEMORIO (RJ) from 2019 to 2022 by serological and molecular methods. RESULTS An overall arbovirus exposure was observed in 26.1% of the blood donations. Anti-DENV IgM was detected in 4.0% of samples and two donations were DENV NS1 positive. Positive anti-CHIKV IgM was observed in 4.7% of the donations. Co-detection of anti-CHIKV IgM and anti-DENV IgM was observed in 1.0% of donors, and CHIKV prevalence was 21.3%. All blood donations tested were negative for the DENV, ZIKV and CHIKV RNA. CONCLUSION IgM seroprevalence to the arboviruses analyzed here is an indicator of recent infection in asymptomatic donors, showing that the population of blood donors can be a vehicle for new infections, especially during epidemic periods.
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Affiliation(s)
- Rhayany Redon de Sant'Anna
- Laboratório das Interações Vírus-Hospedeiros, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz (Fiocruz), Rio de Janeiro, Brazil
- Instituto Estadual de Hematologia Arthur de Siqueira Cavalcanti, Hemorio, Rio de Janeiro, Brazil
| | - Priscila Conrado Guerra Nunes
- Laboratório das Interações Vírus-Hospedeiros, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz (Fiocruz), Rio de Janeiro, Brazil
| | - Flavia Barreto Dos Santos
- Laboratório das Interações Vírus-Hospedeiros, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz (Fiocruz), Rio de Janeiro, Brazil
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Slavov SN. Viral Metagenomics for Identification of Emerging Viruses in Transfusion Medicine. Viruses 2022; 14:v14112448. [PMID: 36366546 PMCID: PMC9699440 DOI: 10.3390/v14112448] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 10/24/2022] [Accepted: 10/26/2022] [Indexed: 11/06/2022] Open
Abstract
Viral metagenomics has revolutionized our understanding for identification of unknown or poorly characterized viruses. For that reason, metagenomic studies gave been largely applied for virus discovery in a wide variety of clinical samples, including blood specimens. The emerging blood-transmitted virus infections represent important problem for public health, and the emergence of HIV in the 1980s is an example for the vulnerability of Blood Donation systems to such infections. When viral metagenomics is applied to blood samples, it can give a complete overview of the viral nucleic acid abundance, also named "blood virome". Detailed characterization of the blood virome of healthy donors could identify unknown (emerging) viral genomes that might be assumed as hypothetic transfusion threats. However, it is impossible only by application of viral metagenomics to assign that one viral agent could impact blood transfusion. That said, this is a complex issue and will depend on the ability of the infectious agent to cause clinically important infection in blood recipients, the viral stability in blood derivatives and the presence of infectious viruses in blood, making possible its transmission by transfusion. This brief review summarizes information regarding the blood donor virome and some important challenges for use of viral metagenomics in hemotherapy for identification of transfusion-transmitted viruses.
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Affiliation(s)
- Svetoslav Nanev Slavov
- Department of Cellular and Molecular Therapy (NuCeL), Butantan Institute, São Paulo 05503-900, SP, Brazil; ; Tel.: +55-(16)-2101-9300 (ext. 9365)
- Laboratory of Bioinformatics, Blood Center of Ribeirão Preto, Faculty of Medicine of Ribeirão Preto, University of São Paulo, Rua Tenente Catão Roxo 2501, Ribeirão Preto CEP 14051-140, SP, Brazil
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Valença IN, Rós FA, Zucherato VS, Silva-Pinto AC, Covas DT, Kashima S, Slavov SN. Comparative metavirome analysis in polytransfused patients. ACTA ACUST UNITED AC 2021; 54:e11610. [PMID: 34669783 PMCID: PMC8521540 DOI: 10.1590/1414-431x2021e11610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Accepted: 08/13/2021] [Indexed: 11/22/2022]
Abstract
Due to the high transfusion volume, polytransfused patients with sickle cell disease (SCD) and beta-thalassemia are constantly exposed to parenterally transmitted infections. Currently, we have little information about the virome of such patients and how the virological composition might be influenced by the hemotherapy procedures that these patients receive. The objective of this study was to compare the viral diversity between these two groups with respect to the viral abundance and how it might be affected by the specific conditions of these groups. We sequenced by next-generation sequencing (NGS) and compared the virome of 30 patients with beta-thalassemia major, 45 with SCD, and 16 blood donors from the Blood Center of Ribeirão Preto, Brazil. Predominantly, commensal viruses including Torque teno virus (TTV) genotypes and human pegiviris-1 (HPgV-1) were identified in each group. Strikingly, while HPgV-1 reads were dominant in the SCD group, thalassemic patients showed high TTV abundance, expressed both in viral reads and genotypes. We speculated that the commensal virome of polytransfused patients might be influenced by the transfusion frequency and disease characteristics and that commensal viruses might be used as important genetic biomarkers for these hematological disturbances. Nevertheless, more specific studies are necessary to confirm a relationship between blood virome and transfusion treatment.
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Affiliation(s)
- I N Valença
- Programa de Pós-Graduação em Oncologia Clínica, Células Tronco e Terapia Celular, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brasil.,Hemocentro de Ribeirão Preto, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brasil
| | - F A Rós
- Programa de Pós-Graduação em Oncologia Clínica, Células Tronco e Terapia Celular, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brasil.,Hemocentro de Ribeirão Preto, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brasil
| | - V S Zucherato
- Hemocentro de Ribeirão Preto, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brasil
| | - A C Silva-Pinto
- Hemocentro de Ribeirão Preto, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brasil
| | - D T Covas
- Hemocentro de Ribeirão Preto, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brasil
| | - S Kashima
- Hemocentro de Ribeirão Preto, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brasil
| | - S N Slavov
- Hemocentro de Ribeirão Preto, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brasil.,Instituto Butantan, São Paulo, SP, Brasil
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Slavov SN, Santos EV, Hespanhol MR, Rodrigues ES, Haddad R, Ubiali EMA, Covas DT, Kashima S. Dengue RNA detection and seroprevalence in blood donors during an outbreak in the São Paulo State, Brazil, 2016. J Med Virol 2021; 93:3344-3349. [PMID: 33090520 DOI: 10.1002/jmv.26619] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 10/05/2020] [Accepted: 10/20/2020] [Indexed: 11/10/2022]
Abstract
Most dengue virus (DENV) infections remain asymptomatic. This increases the risk of DENV transfusion transmission (TT-DENV) during outbreaks. We evaluated DENV viremia in 8475 blood donations assembled in minipools for the presence of DENV RNA. The tested samples were obtained between February and May, 2016, during a large DENV outbreak in Ribeirão Preto city, northeast region of the São Paulo State, Brazil. The DENV RNA + samples were serotyped and screened for DENV NS1. We also tested a significant number of plasma samples (n = 372) to estimate the DENV seroprevalence among blood donors in the region. We detected three DENV RNA + samples in the tested blood donations (n = 3/8475, 0.04%). From these, two samples were further serotyped as DENV-1 and one sample as DENV-2. All DENV RNA positive samples were negative for anti-DENV IgG, indicating the presence of primary acute infection. Moreover, two of the DENV RNA + samples were also NS1 antigen positive (antigenemia). The anti-DENV IgG seroprevalence among blood donor population was 50.8% (n = 189/372). Our results are in accordance with the presence of DENV primary infection in blood donors which can lead to transfusion transmission of the infection to recipients. Measures to exclude such donors should be adopted to prevent TT-DENV.
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Affiliation(s)
- Svetoslav N Slavov
- Blood Center of Ribeirão Preto, Faculty of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
- Department of Internal Medicine, Faculty of Medicine of Ribeirão Preto, University of São Paulo, Brazil
| | - Elaine V Santos
- Blood Center of Ribeirão Preto, Faculty of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Marta R Hespanhol
- Blood Center of Ribeirão Preto, Faculty of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Evandra S Rodrigues
- Blood Center of Ribeirão Preto, Faculty of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Rodrigo Haddad
- Laboratory of Clinical Analyses, Faculty of Ceilandia, University of Brasilia, Brasilia, Federal District, Brazil
- Center for Tropical Medicine, Faculty of Medicine, University of Brasilia, Brasilia, Federal District, Brazil
| | - Eugênia M A Ubiali
- Blood Center of Ribeirão Preto, Faculty of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Dimas T Covas
- Blood Center of Ribeirão Preto, Faculty of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
- Department of Internal Medicine, Faculty of Medicine of Ribeirão Preto, University of São Paulo, Brazil
| | - Simone Kashima
- Blood Center of Ribeirão Preto, Faculty of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
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Virome comparison of deferred blood donations obtained from different geographic regions in the Sao Paulo State, Brazil. Transfus Apher Sci 2021; 60:103106. [PMID: 33726974 DOI: 10.1016/j.transci.2021.103106] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 02/11/2021] [Accepted: 02/18/2021] [Indexed: 12/27/2022]
Abstract
The virome composition of blood units deferred due to symptomatic disease of the donors reported after blood donation may reveal novel or unsuspected viral agents which may have impact in the area of hemotherapy. The objective of this study was to compare the virome of blood donations obtained from two distantly located blood collecting institutions in the Saqo Paulo State and deferred from use due to post donation illness reports (PDIR). Plasma samples with PDIR due to different symptoms were collected in two cities of the Sao Paulo State (Sao Paulo city, 28 samples and Ribeirao Preto city, 11 samples). The samples were assembled in pools and sequenced in Illumina NextSeq 550 sequencer. The obtained raw sequencing data was analyzed using bioinformatic pipeline aiming viral identification. Phylogenetic classification of the most important contigs was also performed. The virome composition of the plasma samples obtained in both cities was different. This was more pronounced for some specific anellovirus types and the human pegivirus-1 (HPgV-1) which were exclusively found among donations obtained from the city of Sao Paulo. On the other hand, in PDIR samples from Ribeirao Preto, Dengue -2 reads were more abundant compared to commensal viral representatives. The obtained virome findings show that the differential viral abundance is related to geographic localization and specific disease endemicity. The virome of PDIR samples may be used to more profoundly analyze the hypothetic transfusion threats in a given location.
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Stanley J, Chongkolwatana V, Duong PT, Kitpoka P, Stramer SL, Dung NTT, Grimm KE, Pojanasingchod A, Suksomboonvong P, Galel SA. Detection of dengue, chikungunya, and Zika RNA in blood donors from Southeast Asia. Transfusion 2021; 61:134-143. [PMID: 33026130 PMCID: PMC7821136 DOI: 10.1111/trf.16110] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 09/11/2020] [Accepted: 09/12/2020] [Indexed: 12/11/2022]
Abstract
BACKGROUND Chikungunya (CHIKV), dengue (DENV), and Zika (ZIKV) viruses are of concern due to the potential of transfusion transmission in blood, especially in regions such as Southeast Asia where the viruses are endemic. The recent availability of nucleic acid testing (NAT) to screen blood donations on an automated platform provides the opportunity to detect potentially infectious units in asymptomatic donors. STUDY DESIGN AND METHODS Three thousand blood donations from Vietnam and 6000 from Thailand were screened with a real-time polymerase chain reaction (PCR) test (cobas CHIKV/DENV, Roche Diagnostics, Indianapolis, IN) and equal numbers on cobas Zika (Roche Diagnostics). Reactive samples were tested by alternative NAT with resolution of discordant results by heminested PCR. Throughput of simultaneous testing of the two assays on the cobas 8800 system (Roche Diagnostics) was evaluated. RESULTS In Vietnam, 9 of 3045 samples were reactive for DENV and all were confirmed, for a prevalence (with 95% confidence interval [CI]) of 0.296% (0.135-0.560). In Thailand, 2 of 6000 samples were reactive for CHIKV, 4 of 6000 for DENV, and 1 of 6005 for ZIKV, and all confirmed. The prevalence of CHIKV is 0.033% (0.004-0.120), DENV 0.067% (0.018-0.171), and ZIKV 0.017% (0.000-0.093). The overall specificity for the cobas CHIKV/DENV and cobas Zika tests was 100% (99.959-100). For the simultaneous assay testing, 960 test results were available in 7 hours and 53 minutes. CONCLUSION Detection of CHIKV, DENV, and ZIKV RNA in donor samples in Vietnam and Thailand indicate the presence of the virus in asymptomatic blood donors. The cobas 6800/8800 systems (Roche Molecular Systems, Pleasanton, CA) enable screening blood donations in endemic areas for these viruses together or separately.
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Affiliation(s)
- Jean Stanley
- Medical and Scientific AffairsRoche Molecular DiagnosticsPleasantonCaliforniaUSA
| | | | - Pham Tuan Duong
- Blood ScreeningNational Institute of Hematology and Blood TransfusionHanoiVietnam
| | - Pimpun Kitpoka
- Faculty of MedicineRamathibodi Hospital, Mahidol UniversityBangkokThailand
| | | | | | - Kacie E. Grimm
- Scientific AffairsAmerican Red CrossGaithersburgMarylandUSA
| | | | | | - Susan A. Galel
- Medical and Scientific AffairsRoche Molecular DiagnosticsPleasantonCaliforniaUSA
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