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Chernova TM, Timchenko VN, Pavlova EB, Baracina EV, Subbotina MD. Parvovirus В19 infection: lecture. CHILDREN INFECTIONS 2022. [DOI: 10.22627/2072-8107-2022-21-3-39-46] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Parvovirus B19 infection is best known as erythema infectiosum. However, infection with parvovirus B19 can lead to damage to various organs and systems, the development of severe complications up to death. The infection is most dangerous for people with immunodeficiency and hematological diseases. Serious consequences are possible with intrauterine infection of the fetus. Knowledge about the characteristics of the pathogen, the pathogenesis of the disease, the variety of clinical manifestations will allow the doctor to avoid diagnostic errors and provide the patient with timely medical care.
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Sánchez-Vizcaíno F, Tamayo C, Ramos F, Láinez-González D, Serrano-López J, Barba R, Martin MD, Llamas P, Alonso-Dominguez JM. Identification of seasonal variation in the diagnosis of acute myeloid leukaemia: a population-based study. Br J Haematol 2022; 198:545-555. [PMID: 35639095 PMCID: PMC9542150 DOI: 10.1111/bjh.18279] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 05/10/2022] [Accepted: 05/11/2022] [Indexed: 12/17/2022]
Abstract
Until now, the role that seasonal factors play in the aetiology of acute myeloid leukaemia (AML) has been unclear. Demonstration of seasonality in AML diagnosis would provide supportive evidence of an underlying seasonal aetiology. To investigate the potential seasonal and long‐term trends in AML diagnosis in an overall population and in subgroups according to sex and age, we used population‐based data from a Spanish hospital discharge registry. We conducted a larger study than any to date of 26 472 cases of AML diagnosed in Spain between 2004 and 2015. Using multivariable Poisson generalized linear autoregressive moving average modelling, we found an upward long‐term trend, with monthly incidence rates of AML annually increasing by 0.4% [95% confidence interval (CI), 0.2%–0.6%; p = 0.0011]. January displayed the highest incidence rate of AML, with a minimum average difference of 7% when compared to February (95% CI, 2%–12%; p = 0.0143) and a maximum average difference of 16% compared to November (95% CI, 11%–21%; p < 0.0001) and August (95% CI, 10%–21%; p < 0.0001). Such seasonal effect was consistent among subgroups according to sex and age. Our finding that AML diagnosis is seasonal strongly implies that seasonal factors, such as infectious agents or environmental triggers, influence the development and/or proliferation of disease, pointing to prevention opportunities.
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Affiliation(s)
| | - Carmen Tamayo
- Bristol Veterinary School, Faculty of Health Sciences, University of Bristol, Bristol, UK
| | - Fernando Ramos
- Department of Hematology, Hospital Universitario de León, León, Spain
| | | | | | - Raquel Barba
- Department of Internal Medicine, Hospital Rey Juan Carlos, Madrid, Spain
| | - Maria Dolores Martin
- Department of Epidemiology, Hospital Universitario Fundación Jiménez Díaz, Madrid, Spain
| | - Pilar Llamas
- Instituto Investigación Sanitaria FJD (IIS-FJD), Madrid, Spain.,Department of Hematology, Hospital Universitario Fundación Jiménez Díaz, Madrid, Spain
| | - Juan Manuel Alonso-Dominguez
- Instituto Investigación Sanitaria FJD (IIS-FJD), Madrid, Spain.,Department of Hematology, Hospital Universitario Fundación Jiménez Díaz, Madrid, Spain
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Fard MB, Atashi A, Amiri S, Kaviani S, Gholampour MA, Ajami M. Parvovirus B19 affects thrombopoietin and IL-11 gene expression in human bone marrow mesenchymal stem cells. Future Virol 2021. [DOI: 10.2217/fvl-2021-0020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Aim: Human bone marrow mesenchymal stem cells (hBMSCs) may be infected by parvovirus B19 (B19V). hBMSCs support bone marrow hematopoiesis by producing stromal cells, secretion of cytokines and growth factors, etc. Because of the lifetime persistent infection of the virus in healthy individual’s bone marrow, this study aims to evaluate B19V effects on hBMSCs gene expression of some crucial hematopoietic cytokines. Materials & methods: hBMSCs were transfected with pHI0 plasmid containing the B19V genome. The quantitative mRNA expression of target genes was evaluated 24 h after transfection. Results: Our findings demonstrated a significant increase in expression levels of IL-11 and TPO (p < 0.05). Conclusion: We concluded that alteration in the gene expressions in B19V-infected hBMSCs might have significant effects on the bone marrow microenvironment as well as hematopoiesis.
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Affiliation(s)
- Mahin Behzadi Fard
- Department of Medical Laboratory Sciences, School of Allied Medical Sciences, Dezful University of Medical Sciences, Dezful, Iran
| | - Amir Atashi
- Stem Cell & Tissue Engineering Research Center, Shahroud University of Medical Sciences, Shahroud, Iran
| | - Shahin Amiri
- Department of Medical Biotechnology, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran
- Student Research Committee, Pasteur Institute of Iran, Tehran, Iran
| | - Saeid Kaviani
- Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | | | - Mansoureh Ajami
- Department of Medical Laboratory Sciences, School of Allied Medical Sciences, Shahroud University of Medical Sciences, Shahroud, Iran
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Olivier-Gougenheim L, Dijoud F, Traverse-Glehen A, Benezech S, Bertrand Y, Latour S, Frobert E, Domenech C. Aggressive large B-cell lymphoma triggered by a parvovirus B19 infection in a previously healthy child. Hematol Oncol 2019; 37:483-486. [PMID: 31408541 DOI: 10.1002/hon.2665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2019] [Revised: 07/17/2019] [Accepted: 08/07/2019] [Indexed: 11/07/2022]
Abstract
In absence of red blood cells disease or immune defect, parvovirus B19 (PVB-19) is usually considered as a benign condition. Here, we report the case of a 10-year-old boy, previously healthy, presenting with a PVB-19 infection revealed by a bicytopenia and a voluminous axillary adenopathy. Pathophysiology examination showed reactional lymphoid population. Nine months later and in the absence of remission, a new biopsy of the same adenopathy revealed a Hodgkin lymphoma with area of T-cell rich aggressive large B-cell lymphoma. This case suggests PVB-19 as potential trigger of this malignant childhood hemopathy. Although no definitive conclusion can be drawn, our clinical case questions the role of PVB-19 in lymphomagenesis.
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Affiliation(s)
- Laura Olivier-Gougenheim
- Institute of Pediatric Hematology and Oncology, Hospices Civils de Lyon, Claude Bernard Lyon I University, Lyon, France
| | - Frederique Dijoud
- Anatomy-Cytology-Pathology Department, Women-Mother and Child Hospital, Hospices Civils de Lyon, Lyon, France
| | - Alexandra Traverse-Glehen
- Anatomy-Pathology Unit, Lyon Sud Hospital, Hospices Civils de Lyon, Claude Bernard Lyon I University, Lyon, France
| | - Sarah Benezech
- Institute of Pediatric Hematology and Oncology, Center Léon Bernard, Lyon, France
| | - Yves Bertrand
- Institute of Pediatric Hematology and Oncology, Hospices Civils de Lyon, Claude Bernard Lyon I University, Lyon, France
| | - Sylvain Latour
- Laboratory of Lymphocyte Activation and Susceptibility to EBV, INSERM UMR 1163-Imagine Institute, Paris, France
| | - Emilie Frobert
- Virology Laboratory, Infectious Agent Institute, Croix-Rousse Hospital, Hospices Civils de Lyon, Claude Bernard Lyon I University, Virpath, CIRI, INSERM U1111, CNRS 5308, ENS Lyon, Lyon, France
| | - Carine Domenech
- Institute of Pediatric Hematology and Oncology, Hospices Civils de Lyon, Claude Bernard Lyon I University, Lyon, France
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Kishore J, Kishore D. Clinical impact & pathogenic mechanisms of human parvovirus B19: A multiorgan disease inflictor incognito. Indian J Med Res 2019; 148:373-384. [PMID: 30666000 PMCID: PMC6362725 DOI: 10.4103/ijmr.ijmr_533_18] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Human parvovirus B19 (B19V) causes myriads of clinical diseases; however, owing to lack of awareness and undetermined clinical impact, it has failed to become a virus pathogen of global concern. Cryptically, B19V causes significant morbidity and mortality. Half of the world population and 60 per cent of Indians are known to be serologically naive and are at risk of acquiring B19V infections. Cumulatively, our data showed 21.3 per cent B19V-infected patients with juvenile chronic arthropathy, recurrent abortions, multi-transfused thalassaemia and leukaemia. In addition, B19V-infected cases that ended fatally included patients with pure red cell aplasia, fulminant hepatitis and haemophagocytic syndrome. Novel clinical associations of B19V observed were amegakaryocytic thrombocytopaenia, myositis and non-occlusive ischaemic gangrene of bowel. B19V possesses multiple receptors which are distributed widely in human tissues. Vascular endothelial cell infection by B19V causes endothelialitis and vasculitic injuries besides antibody-dependent enhancement which empowered B19V to cause multiorgan diseases. Owing to lack of suitable animal model for B19V, true causal role remains to be determined, but numerous reports on B19V infections substantiate a causal role in multiorgan diseases. Hence, B19V infections need to be recognized, investigated and treated besides making efforts on vaccine developments.
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Affiliation(s)
- Janak Kishore
- Division of Virology, Department of Microbiology, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, India
| | - Divya Kishore
- Guru Nanak Eye Centre, Maulana Azad Medical College, New Delhi, India
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Ramanathan S, Narula G, Prasad M, Vora T, Chinnaswamy G, Banavali S. Parvoviral disease in childhood cancer: Clinical outcomes and impact on therapy at a tertiary cancer center in India. Pediatr Blood Cancer 2018; 65:e27357. [PMID: 30058287 DOI: 10.1002/pbc.27357] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2018] [Revised: 06/16/2018] [Accepted: 06/18/2018] [Indexed: 12/12/2022]
Abstract
BACKGROUND AND AIM Parvovirus-B19 disease in immunocompromised children can cause myelosuppression and therapeutic delays. We studied the clinical profiles of children having symptoms suggestive of parvoviral disease at our institution, a large tertiary cancer center. METHODS Children below age 15 years undergoing treatment for malignancies with clinical features suggestive of parvoviral infection, and/or unexplained drop in hemoglobin, and/or prolonged cytopenia were screened for parvovirus infection using DNA-PCR for parvovirus-B19 (PB19) in the peripheral blood. Patients testing positive from September 2014 till February 2017 were studied. RESULTS Of the 59 patients (36 patients with hematolymphoid malignancies, 23 with solid tumors) screened for suspected parvoviral infections, 27 tested positive. Median age was 9.6 years (2.25-15 years), 18 (66%) had hematolymphoid malignancies, while 7 (33%) had solid tumors. Six patients (26%) were on intensive phases, 16 (60%) patients developed the symptoms during maintenance chemotherapy, and 4 (15%) after completion of therapy. Isolated anemia was the commonest feature seen in 10 patients (37%) while bicytopenia and pancytopenia were noticed in 8 (30%) and 9 (33%) patients respectively. Fifty percent of patients those who received rituximab (3/6) developed persistent parvoviremia (>4 weeks) as compared with 24% (5/21) of those who did not. Two patients (7%) developed hemophagocytic lymphohistiocytosis (HLH). Treatment delay by more than 14 days was encountered in a majority (62%), with 5 patients requiring treatment modification or even suspension. CONCLUSIONS Parvoviral infection in children who are on or have recently completed chemotherapy can lead to multiple cytopenias and significant treatment delays. Rituximab exposure may lead to persistent parvoviral disease (p < 0.05). HLH, though occasional, can be a serious complication.
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Affiliation(s)
- Subramaniam Ramanathan
- Department of Pediatric Oncology, Tata Memorial Hospital, Mumbai, Maharashtra, India.,Homi Bhabha National Institute, Mumbai, Maharashtra, India
| | - Gaurav Narula
- Department of Pediatric Oncology, Tata Memorial Hospital, Mumbai, Maharashtra, India.,Homi Bhabha National Institute, Mumbai, Maharashtra, India
| | - Maya Prasad
- Department of Pediatric Oncology, Tata Memorial Hospital, Mumbai, Maharashtra, India.,Homi Bhabha National Institute, Mumbai, Maharashtra, India
| | - Tushar Vora
- Department of Pediatric Oncology, Tata Memorial Hospital, Mumbai, Maharashtra, India.,Homi Bhabha National Institute, Mumbai, Maharashtra, India
| | - Girish Chinnaswamy
- Department of Pediatric Oncology, Tata Memorial Hospital, Mumbai, Maharashtra, India.,Homi Bhabha National Institute, Mumbai, Maharashtra, India
| | - Shripad Banavali
- Department of Pediatric Oncology, Tata Memorial Hospital, Mumbai, Maharashtra, India.,Homi Bhabha National Institute, Mumbai, Maharashtra, India
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The seasonality in the diagnosis of acute leukemia: A single center data from Turkey. MARMARA MEDICAL JOURNAL 2018. [DOI: 10.5472/marumj.474176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Tharwat Abou El-Khier N, Darwish A, El Sayed Zaki M. Molecular Study of Parvovirus B19 Infection in Children with
Acute Myeloid Leukemia. Asian Pac J Cancer Prev 2018; 19:337-342. [PMID: 29479965 PMCID: PMC5980917 DOI: 10.22034/apjcp.2018.19.2.337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
Background: Parvovirus B19 is a common viral infection in children. Nearby evidences are present about its association with acute leukemia, especially acute lymphoblast leukemia. Nevertheless, scanty reports have discussed any role in acute myeloid leukemia (AML). Purpose: To evaluate the frequency of virological markers of B19 infection including its DNA along with specific immunoglobulins G (IgG) and M (IgM) among children with newly diagnosed AML. Besides, describing the clinical importance of Parvovirus B19 infection in those patients. Patients and methods: A case-control retrospective study was conducted on 48 children recently diagnosed with AML before and during chemotherapy induction and 60 healthy control. Specific serum IgM and IgG levels were determined by enzyme linked immunosorbant assay (ELISA) and DNA detection by polymerase chain reaction (PCR). Results: Parvovirus DNA was detected in 20 patients with AML. IgM was found in sera of four patients and one case had positive DNA and IgG (5%). Patients with recent parvovirus B19 infection had a significantly reduced hemoglobin levels, RBCs counts, platelet counts, neutrophil counts and absolute lymphocytosis (p=0.01, p=0.0001, p=0.01, p=0.02, p=0.0003, respectively). There were no clinical findings with statistically significant association to recent infection. Half of the patients with AML had positive PCR and/or IgM for parvovirus B19. Among children with AML under chemotherapy, there were reduced hemoglobin levels (P=0.03), reduced platelet counts (P=0.0001) and absolute neutropenia (mean±SD, 1.200 ±1.00) in those with parvovirus B19 infection. More than half of patients with parvovirus B19 (72.2%) had positive PCR and/or IgM and 36.4% of them had positive IgG. Conclusion: This study highlights that parvovirus B19 is common in children with AML either at diagnosis or under chemotherapy. There are no clinical manifestations that can be used as markers for its presence, but hematological laboratory findings can provide evidence for infection in the presence of anemia and neutropenia. Detection of parvovirus B19 by combined molecular and serological markers is required in such patients for accurate diagnosis.
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Thvilum M, Brandt F, Brix TH, Hegedüs L. Month of birth is associated with the subsequent diagnosis of autoimmune hypothyroidism. A nationwide Danish register-based study. Clin Endocrinol (Oxf) 2017; 87:832-837. [PMID: 28727153 DOI: 10.1111/cen.13425] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Revised: 06/28/2017] [Accepted: 07/15/2017] [Indexed: 02/02/2023]
Abstract
BACKGROUND The triggering of thyroid autoimmunity in the genetically susceptible remains a conundrum. Environmental exposures during gestation and/or early postnatally have proponents, as suggested in diabetes mellitus, with a higher incidence of births during spring and summer. Whether the development of autoimmune hypothyroidism (AIT) is influenced by month or season of birth is less clear. METHOD Nationwide cohort study of 111 565 individuals diagnosed with AIT and four euthyroid controls per case, matched according to age and sex, were identified from Danish health registers. Differences in month of birth across the year were evaluated by the Walter-Elwood test. The risk of patients with AIT being born in a certain month or season of the year was calculated using a Cox regression model. RESULTS There was a significant difference in birth month between cases and controls, P<.001. Individuals with AIT had a significantly increased risk of being born in June (Hazard ratio 1.04; 95% Confidence interval (CI): 1.02-1.08) and in the summer (June-August; HR 1.02; 95%CI: 1.01-1.04). CONCLUSION In this large-scale nationwide cohort study, we found a higher risk of AIT when born in the summer season or more specifically in June, supporting the hypothesis that seasonal variations in exposures-gestationally and/or early postnatally-may contribute to the development of AIT.
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Affiliation(s)
- Marianne Thvilum
- Department of Endocrinology and Metabolism, Odense University Hospital, Odense C, Denmark
| | - Frans Brandt
- Department of Internal Medicine, Hospital of Southern Denmark, Sonderborg, Denmark
| | - Thomas Heiberg Brix
- Department of Endocrinology and Metabolism, Odense University Hospital, Odense C, Denmark
| | - Laszlo Hegedüs
- Department of Endocrinology and Metabolism, Odense University Hospital, Odense C, Denmark
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Hwee J, Tait C, Sung L, Kwong JC, Sutradhar R, Pole JD. A systematic review and meta-analysis of the association between childhood infections and the risk of childhood acute lymphoblastic leukaemia. Br J Cancer 2017; 118:127-137. [PMID: 29065105 PMCID: PMC5765221 DOI: 10.1038/bjc.2017.360] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2017] [Revised: 09/19/2017] [Accepted: 09/21/2017] [Indexed: 01/02/2023] Open
Abstract
Background: To determine whether childhood infections were associated with the development of childhood acute lymphoblastic leukaemia (ALL). Methods: We included studies that assessed any infection in childhood prior to the diagnosis of ALL in children aged 0–19 years compared to children without cancer. The primary analysis synthesised any infection against the odds of ALL, and secondary analyses assessed the frequency, severity, timing of infections, and specific infectious agents against the odds of ALL. Subgroup analyses by data source were investigated. Results: In our primary analysis of 12 496 children with ALL and 2 356 288 children without ALL from 38 studies, we found that any infection was not associated with ALL (odds ratio (OR)=1.10, 95% CI: 0.95–1.28). Among studies with laboratory-confirmed infections, the presence of infections increased the odds of ALL by 2.4-fold (OR=2.42, 95% CI: 1.54–3.82). Frequency, severity, and timing of infection were not associated with ALL. Conclusions: The hypothesis put forward by Greaves and others about an infectious aetiology are neither confirmed nor refuted and the overall evidence remains inadequate for good judgement. The qualitative difference in the subgroup effects require further study, and future research will need to address the challenges in measuring infectious exposures.
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Affiliation(s)
- Jeremiah Hwee
- Dalla Lana School of Public Health, University of Toronto, Health Sciences Building, 155 College Street, Toronto, ON, Canada
| | - Christopher Tait
- Dalla Lana School of Public Health, University of Toronto, Health Sciences Building, 155 College Street, Toronto, ON, Canada
| | - Lillian Sung
- Division of Haematology/Oncology, Department of Pediatrics, The Hospital for Sick Children, 555 University Avenue, Toronto, ON, Canada.,Program in Child Health Evaluative Sciences, The Hospital for Sick Children, Peter Gilgan Centre for Research and Learning, 686 Bay Street, Toronto, ON, Canada.,Institute of Health Policy, Management and Evaluation, University of Toronto, Health Sciences Building, 155 College Street, Toronto, ON, Canada
| | - Jeffrey C Kwong
- Dalla Lana School of Public Health, University of Toronto, Health Sciences Building, 155 College Street, Toronto, ON, Canada.,Institute for Clinical Evaluative Sciences, 2075 Bayview Avenue, Toronto, ON, Canada.,Department of Family and Community Medicine, University of Toronto, Toronto, ON Canada.,Public Health Ontario, Toronto, ON, Canada.,Toronto Western Family Health Team, University Health Network, Toronto, ON, Canada
| | - Rinku Sutradhar
- Dalla Lana School of Public Health, University of Toronto, Health Sciences Building, 155 College Street, Toronto, ON, Canada.,Institute for Clinical Evaluative Sciences, 2075 Bayview Avenue, Toronto, ON, Canada
| | - Jason D Pole
- Dalla Lana School of Public Health, University of Toronto, Health Sciences Building, 155 College Street, Toronto, ON, Canada.,Pediatric Oncology Group of Ontario, 480 University Avenue, Suite 1014, Toronto, ON, Canada
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Kerr JR. A review of blood diseases and cytopenias associated with human parvovirus B19 infection. Rev Med Virol 2015; 25:224-40. [PMID: 25962796 DOI: 10.1002/rmv.1839] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2015] [Revised: 03/24/2015] [Accepted: 03/25/2015] [Indexed: 12/12/2022]
Abstract
Parvovirus B19 is a single-stranded DNA virus which preferentially targets the erythroblast resulting in red cell aplasia, which is temporary in immunocompetent persons. Since the discovery of B19 virus in 1975, a wide variety of blood diseases and cytopenias affecting several blood cell lineages have been documented during or following B19 infection. These include cytopenias affecting the erythroid, megakaryoblastoid, myeloid and lymphoid lineages, as well as a variety of bicytopenias, pancytopenia, bone marrow necrosis / fat embolism syndrome, myelodysplastic syndrome, leucoerythroblastopenia, and hemophagocytic lymphohistiocytosis. B19 infection may also complicate and precede the course of acute leukemia, the significance of which remains to be determined. This review describes the current state of knowledge of the abnormalities of individual blood cell lineages encountered during parvovirus B19 infection, over the almost 40 years since its discovery, and reveals some very interesting themes, which improve our understanding of the pathogenesis of B19 infection with particular reference to the bone marrow.
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Affiliation(s)
- Jonathan R Kerr
- Escuela de Medicina y Ciencias de la Salud, Universidad del Rosario, Bogotá, Colombia
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