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Orb QT, Pesch M, Allen CM, Wilkes A, Ahmad I, Alfonso K, Antonio SM, Mithal LB, Brinkmeier JV, Carvalho D, Chan D, Cheng AG, Chi D, Cohen M, Discolo CM, Duran C, Germiller J, Gibson L, Grunstein E, Harrison G, Lee K, Hawley K, Kohlhoff S, Melvin A, MacArthur C, Nassar M, Neff L, Pecha P, Salvatore C, Schoem S, Virgin F, Saunders J, Schleiss M, Smith RJH, Sood S, Park AH. Congenital Cytomegalovirus Testing Outcomes From the ValEAR Trial. Otolaryngol Head Neck Surg 2024; 170:1430-1441. [PMID: 38415855 PMCID: PMC11060929 DOI: 10.1002/ohn.670] [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: 06/19/2023] [Revised: 11/13/2023] [Accepted: 12/02/2023] [Indexed: 02/29/2024]
Abstract
OBJECTIVE To determine the positivity rate of congenital cytomegalovirus (cCMV) testing among universal, hearing-targeted CMV testing (HT-cCMV) and delayed targeted dried blood spot (DBS) testing newborn screening programs, and to examine the characteristics of successful HT-cCMV testing programs. STUDY DESIGN Prospective survey of birth hospitals performing early CMV testing. SETTING Multiple institutions. METHODS Birth hospitals participating in the National Institutes of Health ValEAR clinical trial were surveyed to determine the rates of cCMV positivity associated with 3 different testing approaches: universal testing, HT-cCMV, and DBS testing. A mixed methods model was created to determine associations between successful HT-cCMV screening and specific screening protocols. RESULTS Eighty-two birth hospitals were surveyed from February 2019 to December 2021. Seven thousand six hundred seventy infants underwent universal screening, 9017 infants HT-cCMV and 535 infants delayed DBS testing. The rates of cCMV positivity were 0.5%, 1.5%, and 7.3%, respectively. The positivity rate for universal CMV screening was less during the COVID-19 pandemic than that reported prior to the pandemic. There were no statistically significant drops in positivity for any approach during the pandemic. For HT-cCMV testing, unique order sets and rigorous posttesting protocols were associated with successful screening programs. CONCLUSION Rates of cCMV positivity differed among the 3 approaches. The rates are comparable to cohort studies reported in the literature. Universal CMV prevalence decreased during the pandemic but not significantly. Institutions with specific order set for CMV testing where the primary care physician orders the test and the nurse facilitates the testing process exhibited higher rates of HT-cCMV testing.
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Affiliation(s)
- Quinn T Orb
- Division of Otolaryngology-Head and Neck Surgery, University of Utah School of Medicine, Salt Lake City, Utah, USA
| | - Megan Pesch
- ValEAR Study Group, Worcester, Massachusetts, USA
| | - Chelsea M Allen
- Department of Population Health Sciences, Division of Biostatistics, University of Utah School of Medicine, Salt Lake City, Utah, USA
| | - Ashlea Wilkes
- Department of Population Health Sciences, Division of Biostatistics, University of Utah School of Medicine, Salt Lake City, Utah, USA
| | - Iram Ahmad
- ValEAR Study Group, Worcester, Massachusetts, USA
| | | | | | | | | | | | - Dylan Chan
- ValEAR Study Group, Worcester, Massachusetts, USA
| | - Alan G Cheng
- ValEAR Study Group, Worcester, Massachusetts, USA
| | - David Chi
- ValEAR Study Group, Worcester, Massachusetts, USA
| | | | | | - Carlos Duran
- ValEAR Study Group, Worcester, Massachusetts, USA
| | | | - Laura Gibson
- ValEAR Study Group, Worcester, Massachusetts, USA
| | | | | | - Kenneth Lee
- ValEAR Study Group, Worcester, Massachusetts, USA
| | - Karen Hawley
- ValEAR Study Group, Worcester, Massachusetts, USA
| | | | - Ann Melvin
- ValEAR Study Group, Worcester, Massachusetts, USA
| | | | | | - Laura Neff
- ValEAR Study Group, Worcester, Massachusetts, USA
| | | | | | - Scott Schoem
- ValEAR Study Group, Worcester, Massachusetts, USA
| | - Frank Virgin
- ValEAR Study Group, Worcester, Massachusetts, USA
| | | | | | | | - Sunil Sood
- ValEAR Study Group, Worcester, Massachusetts, USA
| | - Albert H Park
- Division of Otolaryngology-Head and Neck Surgery, University of Utah School of Medicine, Salt Lake City, Utah, USA
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Ssentongo P, Hehnly C, Birungi P, Roach MA, Spady J, Fronterre C, Wang M, Murray-Kolb LE, Al-Shaar L, Chinchilli VM, Broach JR, Ericson JE, Schiff SJ. Congenital Cytomegalovirus Infection Burden and Epidemiologic Risk Factors in Countries With Universal Screening: A Systematic Review and Meta-analysis. JAMA Netw Open 2021; 4:e2120736. [PMID: 34424308 PMCID: PMC8383138 DOI: 10.1001/jamanetworkopen.2021.20736] [Citation(s) in RCA: 66] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
IMPORTANCE Congenital cytomegalovirus (cCMV) infection is the most common congenital infection and the leading acquired cause of developmental disabilities and sensorineural deafness, yet a reliable assessment of the infection burden is lacking. OBJECTIVES To estimate the birth prevalence of cCMV in low- and middle-income countries (LMICs) and high-income countries (HICs), characterize the rate by screening methods, and delineate associated risk factors of the infection. DATA SOURCES MEDLINE/PubMed, Scopus, and Cochrane Database of Systematic Reviews databases were searched from January 1, 1960, to March 1, 2021, and a total of 1322 studies were identified. STUDY SELECTION Studies that provided data on the prevalence of cCMV derived from universal screening of infants younger than 3 weeks were included. Targeted screening studies were excluded. DATA EXTRACTION AND SYNTHESIS Preferred Reporting Items for Systematic Reviews and Meta-analyses guideline was followed. Extraction was performed independently by 3 reviewers. Quality was assessed using the Newcastle-Ottawa Scale for cohort studies. Random-effects meta-analysis was undertaken. Metaregression was conducted to evaluate the association of sociodemographic characteristics, maternal seroprevalence, population-level HIV prevalence, and screening methods with the prevalence of cCMV. MAIN OUTCOMES AND MEASURES Birth prevalence of cCMV ascertained through universal screening of infants younger than 3 weeks for CMV from urine, saliva, or blood samples. RESULTS Seventy-seven studies comprising 515 646 infants met the inclusion criteria from countries representative of each World Bank income level. The estimated pooled overall prevalence of cCMV was 0.67% (95% CI, 0.54%-0.83%). The pooled birth prevalence of cCMV was 3-fold greater in LMICs (1.42%; 95% CI, 0.97%-2.08%; n = 23 studies) than in HICs (0.48%; 95% CI, 0.40%-0.59%, n = 54 studies). Screening methods with blood samples demonstrated lower rates of cCMV than urine or saliva samples (odds ratio [OR], 0.38; 95% CI, 0.23-0.66). Higher maternal CMV seroprevalence (OR, 1.19; 95% CI, 1.11-1.28), higher population-level HIV prevalence (OR, 1.22; 95% CI, 1.05-1.40), lower socioeconomic status (OR, 3.03; 95% CI, 2.05-4.47), and younger mean maternal age (OR, 0.85; 95% CI, 0.78-0.92, older age was associated with lower rates) were associated with higher rates of cCMV. CONCLUSIONS AND RELEVANCE In this meta-analysis, LMICs appeared to incur the most significant infection burden. Lower rates of cCMV were reported by studies using only blood or serum as a screening method.
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Affiliation(s)
- Paddy Ssentongo
- Center for Neural Engineering, The Pennsylvania State University, University Park
- Department of Engineering Science and Mechanics, The Pennsylvania State University, University Park
- Department of Public Health Sciences, The Pennsylvania State University College of Medicine, Hershey
| | - Christine Hehnly
- Institute for Personalized Medicine, Department of Biochemistry and Molecular Biology, The Pennsylvania State University College of Medicine, Hershey
| | - Patricia Birungi
- College of Human and Health Development, The Pennsylvania State University, University Park
| | - Mikayla A. Roach
- College of Engineering, The Pennsylvania State University, University Park
| | - Jada Spady
- College of Agricultural Sciences, The Pennsylvania State University, University Park
| | - Claudio Fronterre
- Centre for Health Informatics, Computing, and Statistics, Lancaster University, Lancaster, United Kingdom
| | - Ming Wang
- Department of Public Health Sciences, The Pennsylvania State University College of Medicine, Hershey
| | - Laura E. Murray-Kolb
- Department of Nutritional Sciences, The Pennsylvania State University, University Park
| | - Laila Al-Shaar
- Department of Public Health Sciences, The Pennsylvania State University College of Medicine, Hershey
| | - Vernon M. Chinchilli
- Department of Public Health Sciences, The Pennsylvania State University College of Medicine, Hershey
| | - James R. Broach
- Institute for Personalized Medicine, Department of Biochemistry and Molecular Biology, The Pennsylvania State University College of Medicine, Hershey
| | - Jessica E. Ericson
- Division of Pediatric Infectious Disease, The Pennsylvania State University College of Medicine, Hershey
| | - Steven J. Schiff
- Center for Neural Engineering, The Pennsylvania State University, University Park
- Department of Engineering Science and Mechanics, The Pennsylvania State University, University Park
- The Center for Infectious Disease Dynamics, The Pennsylvania State University, University Park
- Department of Neurosurgery, The Pennsylvania State University College of Medicine, Hershey
- Department of Physics, The Pennsylvania State University, University Park
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Yang TH, Huang HM, Hsu WC, Tsao PN, Liu TC, Hsu CJ, Huang LM, Wu CS, Weng SM, Lu CY, Wu CC. The prevalence and demographic features of congenital cytomegalovirus infection in an urban area of East Asia: A population-based study. PLoS One 2021; 16:e0248801. [PMID: 33765031 PMCID: PMC7993615 DOI: 10.1371/journal.pone.0248801] [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: 08/04/2020] [Accepted: 03/08/2021] [Indexed: 11/18/2022] Open
Abstract
Congenital cytomegalovirus (cCMV) infection is the leading environmental cause of childhood hearing impairment. However, its significance remains largely undocumented in many regions of the world. The purpose of this study was to investigate the prevalence and clinical features of cCMV infection in East Asia. Neonates born at a municipal hospital in Taipei were prospectively recruited and underwent concurrent hearing and CMV screenings. Those who failed the hearing screening or screened positive for CMV were subjected to a focused audiological and/or virological surveillance. The characteristics of the newborns and their mothers were compared between the CMV-positive and CMV-negative groups. Of the 1,532 newborns who underwent concurrent hearing and CMV screenings, seven (0.46%) were positive for cCMV infection. All seven CMV-positive newborns were asymptomatic at birth, and none of them developed hearing or other symptoms during a follow-up period of 14.4±6.3 months. The mothers of the CMV-positive newborns demonstrated higher gravidity (2.4 ± 1.4 vs. 2.1 ± 1.2) and parity (2.0 ± 1.2 vs. 1.6 ± 0.7) than those in the CMV-negative group; however, the difference did not reach statistical significance. The prevalence of cCMV infection in Taipei newborns was 0.46%, which is slightly lower than that of other populations and that of a previous report in the Taiwanese population. The relatively low prevalence in this study might be attributed to the improved public health system and decreased fertility rate in Taiwan.
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Affiliation(s)
- Tzong-Hann Yang
- Department of Otorhinolaryngology, Taipei City Hospital, Taipei, Taiwan.,Department of Speech Language Pathology and Audiology, National Taipei University of Nursing Health Sciences, Taipei, Taiwan.,General Education Center, University of Taipei, Taipei, Taiwan
| | - Hung-Meng Huang
- Department of Otorhinolaryngology, Taipei City Hospital, Taipei, Taiwan.,Department of Otolaryngology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Wei-Chung Hsu
- Department of Otolaryngology, National Taiwan University Hospital, Taipei, Taiwan
| | - Po-Nien Tsao
- Department of Pediatrics, National Taiwan University Hospital, Taipei, Taiwan
| | - Tien-Chen Liu
- Department of Otolaryngology, National Taiwan University Hospital, Taipei, Taiwan
| | - Chuan-Jen Hsu
- Department of Otolaryngology, National Taiwan University Hospital, Taipei, Taiwan
| | - Li-Min Huang
- Department of Pediatrics, National Taiwan University Hospital, Taipei, Taiwan
| | - Chuan-Song Wu
- Department of Otorhinolaryngology, Taipei City Hospital, Taipei, Taiwan.,College of Science and Engineering, Fu Jen University, New Taipei City, Taiwan
| | - Shih-Ming Weng
- Department of Speech Language Pathology and Audiology, National Taipei University of Nursing Health Sciences, Taipei, Taiwan.,Department of Pediatrics, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan
| | - Chun-Yi Lu
- Department of Pediatrics, National Taiwan University Hospital, Taipei, Taiwan
| | - Chen-Chi Wu
- Department of Otolaryngology, National Taiwan University Hospital, Taipei, Taiwan.,Department of Medical Research, National Taiwan University Biomedical Park Hospital, Hsinchu, Taiwan
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Lee CY, Lin KY, Chen TH, Sung CH, Fang YP, Sung PL, Chan YJ. Prevalence of cytomegalovirus DNAemia and genotypic distribution among childbearing mothers and neonates in Taiwan. Int J Infect Dis 2019; 91:240-245. [PMID: 31783095 DOI: 10.1016/j.ijid.2019.11.025] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Revised: 11/20/2019] [Accepted: 11/21/2019] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Congenital cytomegalovirus (CMV) infection is the leading cause of neurologic disabilities and sensorineural hearing loss in children. However, in Taiwan, there is limited information on the genotypic diversity and prevalence of perinatal CMV infection in both mothers and neonates. The aim of this study was to screen samples from both mothers and umbilical cord blood for CMV at the time of delivery and to determine the CMV genotypic distribution. METHODS Between June 2012 and July 2015, residual maternal and umbilical cord blood samples were collected from consenting participants admitted to the Chang Bing Show Chwan Memorial Hospital in central Taiwan. The blood samples were screened for CMV DNA using real-time PCR assay, and the genotypic classification of the CMV UL55, UL144, and US28 genes was determined by sequencing and phylogenetic analysis. RESULTS A total of 1282 mother-neonate paired samples were enrolled in the study, 95.3% of whom were Taiwanese. CMV DNA was detectable in 6.2% of the maternal blood samples, with a significantly higher rate noted in non-Taiwanese mothers (11.7%,p=0.027). For the 1,282 umbilical cord blood samples, CMV DNA was detectable in 5.3% of the samples. The presence of CMV DNA in maternal blood was positively associated with the presence of CMV DNA in umbilical cord blood (p=0.01). In addition, the UL55, UL144, and US28 genotypic distribution was similar between mothers and neonates. CONCLUSION The prevalence of CMV DNAemia in childbearing mothers and neonates is similar and their genotypic distribution implies potential CMV infection during pregnancy.
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Affiliation(s)
- Chun Yi Lee
- Department of Pediatrics, Chang Bing Show Chwan Memorial Hospital, Changhua, Taiwan; Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Kun Yi Lin
- Department of Obstetrics and Gynecology, Chang Bing Show Chwan Memorial Hospital, Changhua, Taiwan
| | - Tien Hui Chen
- Department of Obstetrics and Gynecology, Chang Bing Show Chwan Memorial Hospital, Changhua, Taiwan
| | - Chia Hsing Sung
- Department of Clinical Laboratory, Chang Bing Show Chwan Memorial Hospital, Changhua, Taiwan
| | - Yu Ping Fang
- Department of Pediatrics, Chang Bing Show Chwan Memorial Hospital, Changhua, Taiwan
| | - Pi Lin Sung
- Department of Obstetrics and Gynecology, Taipei Medical University, Taipei, Taiwan; Department of Obstetrics and Gynecology, Shuang Ho Hospital, Taipei, Taiwan
| | - Yu Jiun Chan
- Division of Microbiology, Department of Pathology and Laboratory Medicine, Taipei Veterans General Hospital, Taipei, Taiwan; Division of Infectious Diseases, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan; Institute of Public Health, National Yang-Ming University, Taipei, Taiwan.
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5
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Lu CY, Tsao PN, Ke YY, Lin YH, Lin YH, Hung CC, Su YN, Hsu WC, Hsieh WS, Huang LM, Wu CC, Hsu CJ. Concurrent Hearing, Genetic, and Cytomegalovirus Screening in Newborns, Taiwan. J Pediatr 2018; 199:144-150.e1. [PMID: 29681450 DOI: 10.1016/j.jpeds.2018.02.064] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Revised: 02/13/2018] [Accepted: 02/27/2018] [Indexed: 12/19/2022]
Abstract
OBJECTIVE To evaluate the feasibility and potential benefits of incorporating genetic and cytomegalovirus (CMV) screenings into the current newborn hearing screening (NHS) programs. STUDY DESIGN Newborns were recruited prospectively from a tertiary hospital and a maternity clinic between May 2016 and December 2016 and were subjected to hearing screening, CMV screening, and genetic screening for 4 common mutations in deafness genes (p.V37I and c.235delC of GJB2 gene, c.919-2A>G of SLC26A4 gene, and the mitochondrial m.1555A>G). Infants with homozygous nuclear mutations or homoplasmic/heteroplasmic mitochondrial mutation (referred to as "conclusively positive genotypes") and those who tested positive for CMV received diagnostic audiologic evaluations. RESULTS Of the total 1716 newborns enrolled, we identified 20 (1.2%) newborns with conclusively positive genotypes on genetic screening, comprising 15 newborns (0.9%) with GJB2 p.V37I/p.V37I and 5 newborns (0.3%) with m.1555A>G. Three (0.2%) newborns tested positive on CMV screening. Twelve of the 20 newborns (60%) with conclusively positive genotypes and all 3 newborns who tested positive for CMV (100%) passed NHS at birth. Diagnostic audiologic evaluations conducted at 3 months confirmed hearing impairment in 6 of the 20 infants (30%) with conclusively positive genotypes. CONCLUSIONS This study confirms the feasibility of performing hearing, genetic, and CMV screenings concurrently in newborns and provides evidence that the incorporation of these screening tests could potentially identify an additional subgroup of infants with impaired hearing that might not be detected by the NHS programs.
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Affiliation(s)
- Chun-Yi Lu
- Department of Pediatrics, National Taiwan University Hospital, Taipei, Taiwan
| | - Po-Nien Tsao
- Department of Pediatrics, National Taiwan University Hospital, Taipei, Taiwan
| | - Ying-Ying Ke
- Graduate Institute of Molecular Medicine, National Taiwan University College of Medicine, Taipei, Taiwan; Sofiva Genomics Co, Ltd, Taipei, Taiwan
| | - Yi-Hsin Lin
- Graduate Institute of Molecular Medicine, National Taiwan University College of Medicine, Taipei, Taiwan; Department of Otolaryngology, National Taiwan University Hospital, Taipei, Taiwan
| | - Yin-Hung Lin
- Graduate Institute of Molecular Medicine, National Taiwan University College of Medicine, Taipei, Taiwan; Graduate Institute of Medical Genomics and Proteomics, National Taiwan University College of Medicine, Taipei, Taiwan; Department of Medical Genetics, National Taiwan University Hospital, Taipei, Taiwan
| | | | - Yi-Ning Su
- Sofiva Genomics Co, Ltd, Taipei, Taiwan; Department of Gynecology and Maternity, Dianthus Maternal Fetal Medicine Clinic, Taipei, Taiwan; Department of Obstetrics and Gynecology, School of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Wei-Chung Hsu
- Department of Otolaryngology, National Taiwan University Hospital, Taipei, Taiwan
| | - Wu-Shiun Hsieh
- Department of Pediatrics, National Taiwan University Hospital, Taipei, Taiwan; Department of Pediatrics, Cathay General Hospital, Taipei, Taiwan
| | - Li-Min Huang
- Department of Pediatrics, National Taiwan University Hospital, Taipei, Taiwan
| | - Chen-Chi Wu
- Department of Otolaryngology, National Taiwan University Hospital, Taipei, Taiwan; Department of Medical Genetics, National Taiwan University Hospital, Taipei, Taiwan.
| | - Chuan-Jen Hsu
- Department of Otolaryngology, National Taiwan University Hospital, Taipei, Taiwan; Department of Otolaryngology, Taichung Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Taichung, Taiwan
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Congenital cytomegalovirus, parvovirus and enterovirus infection in Mozambican newborns at birth: A cross-sectional survey. PLoS One 2018. [PMID: 29538464 PMCID: PMC5851632 DOI: 10.1371/journal.pone.0194186] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Background Congenital cytomegalovirus (cCMV) infection is the most prevalent congenital infection acquired worldwide, with higher incidence in developing countries and among HIV-exposed children. Less is known regarding vertical transmission of parvovirus B19 (B19V) and enterovirus (EV). We aimed to assess the prevalence of CMV, B19V and EV vertical transmission and compare results of screening of congenital CMV obtained from two different specimens in a semirural Mozambican maternity. Methods A cross sectional study was conducted among pregnant mothers attending Manhiça District Hospital upon delivery. Information on maternal risk factors was ascertained. Dried umbilical cord (DUC) samples were collected in filter paper for CMV, B19V and EV detection by real-time polymerase chain reaction (RT-PCR), and nasopharyngeal aspirates (NPA) to test for CMV by RT-PCR. Maternal blood samples and placental biopsy samples were also obtained to investigate CMV maternal serology, HIV status and immunopathology. Results From September 2014 to January 2015, 118 mothers/newborn pairs were recruited. Prevalence of maternal HIV infection was 31.4% (37/118). CMV RT-PCR was positive in 3/115 (2.6%) of DUC samples and in 3/96 (6.3%) of NPA samples obtained from neonates. The concordance of the RT-PCR assay through DUC with their correspondent NPA sample was moderate (Kappa = 0.42 and p<0.001. No differences on cCMV prevalence were found among HIV-exposed and unexposed. All (100%) mothers were seropositive for CMV IgG. RT-PCR of EV and B19V in DUC were both negative in all screened cases. No histological specific findings were found in placental tissues. No risk factors associated to vertical transmission of these viral infections were found. Conclusions This study indicates the significant occurrence of vertical transmission of CMV in southern Mozambique. Larger studies are needed to evaluate the true burden, clinical relevance and consequences of congenital infections with such pathogens in resource-constrained settings.
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Advancing Our Understanding of Protective Maternal Immunity as a Guide for Development of Vaccines To Reduce Congenital Cytomegalovirus Infections. J Virol 2018; 92:JVI.00030-18. [PMID: 29343580 DOI: 10.1128/jvi.00030-18] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Human cytomegalovirus (HCMV) is the most common congenitally transmitted pathogen worldwide, impacting an estimated 1 million newborns annually. Congenital HCMV (cCMV) infection is a major global contributor to long-term neurologic deficits, including deafness, microcephaly, and neurodevelopmental delay, as well as to fetal loss and occasional infant mortality. Accordingly, design of a maternal vaccine to prevent cCMV continues to be a top public health priority. Nevertheless, we remain without a licensed vaccine. Maternal immunity provides partial protection, as the risk of vertical HCMV transmission from chronically infected mothers is reduced compared to settings in which the mother is newly infected during pregnancy. Therefore, an understanding of the maternal immune correlates of protection against cCMV is critical to informing design of an efficacious maternal vaccine. Although vaccine development is being assiduously pursued by a large number of pharmaceutical manufacturers, biotechnology organizations, and academic researchers, some pessimism has been expressed regarding the issue of whether a vaccine to protect against cCMV is possible. This pessimism is based on observations that natural immunity is not completely protective against maternal reinfection and congenital transmission. However, we assert that optimism regarding vaccine development is indeed justified, on the basis of accruing evidence of immune correlates of protection-readily achievable by vaccination-that are associated with reduced transmission of HCMV to the fetus in seronegative women. In light of the substantial burden on society conferred by cCMV infection, even a modest reduction in the occurrence of this fetal disease is an important public health goal and justifies aggressive clinical evaluation of vaccines currently in the pipeline.
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8
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Ross SA, Ahmed A, Palmer AL, Michaels MG, Sánchez PJ, Bernstein DI, Tolan RW, Novak Z, Chowdhury N, Fowler KB, Boppana SB. Detection of congenital cytomegalovirus infection by real-time polymerase chain reaction analysis of saliva or urine specimens. J Infect Dis 2014; 210:1415-8. [PMID: 24799600 DOI: 10.1093/infdis/jiu263] [Citation(s) in RCA: 83] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Viral culture of urine or saliva has been the gold standard technique for the diagnosis of congenital cytomegalovirus (CMV) infection. Results of rapid culture and polymerase chain reaction (PCR) analysis of urine and saliva specimens from 80 children were compared to determine the clinical utility of a real-time PCR assay for diagnosis of congenital CMV infection. Results of urine PCR were positive in 98.8% of specimens. Three PCR-positive urine samples were culture negative. Results of saliva PCR and culture were concordant in 78 specimens (97.5%). Two PCR-positive saliva samples were culture negative. These findings demonstrate that PCR performs as well as rapid culture of urine or saliva specimens for diagnosing congenital CMV infection and saliva specimens are easier to collect. Because PCR also offers more rapid turnaround, is unlikely to be affected by storage and transport conditions, has lower cost, and may be adapted to high-throughput situations, it is well suited for targeted testing and large-scale screening for CMV.
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Affiliation(s)
| | - Amina Ahmed
- Department of Pediatrics, Carolinas Medical Center, Charlotte, North Carolina
| | - April L Palmer
- Department of Pediatrics, University of Mississippi Medical Center, Jackson
| | - Marian G Michaels
- Department of Pediatrics, University of Pittsburgh Children's Hospital of Pittsburgh of UPMC
| | - Pablo J Sánchez
- Department of Pediatrics, Ohio State University-Nationwide Children's Hospital, Columbus
| | - David I Bernstein
- Cincinnati Children's Hospital Medical Center University of Cincinnati, Ohio
| | - Robert W Tolan
- Drexel University College of Medicine, Philadelphia, Pennsylvania Saint Peter's University Hospital, New Brunswick, New Jersey
| | | | | | - Karen B Fowler
- Department of Pediatrics Department of Epidemiology, University of Alabama at Birmingham, Alabama
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Systematic review of the birth prevalence of congenital cytomegalovirus infection in developing countries. Int J Infect Dis 2014; 22:44-8. [PMID: 24631522 DOI: 10.1016/j.ijid.2013.12.010] [Citation(s) in RCA: 142] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2013] [Revised: 11/12/2013] [Accepted: 12/07/2013] [Indexed: 01/18/2023] Open
Abstract
BACKGROUND Congenital cytomegalovirus (CMV) infection is the leading infectious cause of congenital hearing loss and neurodevelopmental disability in developed countries. Information on congenital CMV infection in developing countries appears to be lacking. METHODS We conducted a systematic literature review to identify studies from developing countries with population-based samples of at least 300 infants that used laboratory methods established as reliable for the diagnosis of congenital CMV infection. RESULTS Most studies were excluded due to biased samples or inadequate diagnostic methods; consequently the search identified just 11 studies that were from Africa, Asia, and Latin America. The number of newborns tested ranged from 317 to 12 195. Maternal CMV seroprevalence ranged from 84% to 100%. CMV birth prevalence varied from 0.6% to 6.1%. CMV-associated impairments were not documented in most studies. CONCLUSIONS Birth prevalence ranges were higher than for Europe and North America, as expected based on the higher maternal CMV seroprevalence. With very limited data available on sequelae, the disease burden of congenital CMV in developing countries remains largely unknown at this time.
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de Vries JJC, van der Eijk AA, Wolthers KC, Rusman LG, Pas SD, Molenkamp R, Claas EC, Kroes ACM, Vossen ACTM. Real-time PCR versus viral culture on urine as a gold standard in the diagnosis of congenital cytomegalovirus infection. J Clin Virol 2011; 53:167-70. [PMID: 22177273 DOI: 10.1016/j.jcv.2011.11.006] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2011] [Revised: 11/09/2011] [Accepted: 11/16/2011] [Indexed: 11/29/2022]
Abstract
BACKGROUND Cytomegalovirus (CMV) infection is the most common cause of congenital infection. Whereas CMV PCR has replaced viral culture and antigen detection in immunocompromised patients because of higher sensitivity, viral culture of neonatal urine is still referred to as the gold standard in the diagnosis of congenital CMV infection. OBJECTIVE To compare real-time CMV PCR with shell vial culture on urine in the diagnosis of congenital CMV, in a multicenter design. STUDY DESIGN A series of neonatal urines (n=340), received for congenital CMV diagnostics and routinely assessed with shell vial CMV culture, was retrospectively tested by real-time CMV PCR. RESULTS The proportion of newborns found to be congenitally infected by real-time CMV PCR was 8.2% (28/340, 95%CI 5.6-11.8%), and 7.4% (25/340, 95%CI 4.9-10.8%) by rapid culture. When considering rapid culture as reference, real-time PCR was highly sensitive (100%), whereas sensitivity of rapid culture was 89.3% when considering real-time PCR as reference. CONCLUSIONS Our results, supported by analytical and clinical data on CMV DNA detection in neonatal urine, suggest enhanced sensitivity of recent PCR techniques when compared to viral culture. There is considerable rationale to favor real-time CMV PCR as a gold standard in the diagnosis of congenital CMV infection. A large-scale study combining both laboratory and clinical data is required to determine the exact time frame for sampling of neonatal urine when using real-time PCR.
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Affiliation(s)
- Jutte J C de Vries
- Department of Medical Microbiology, Leiden University Medical Center, P.O. Box 9600, 2300 RC Leiden, The Netherlands.
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Vaudry W, Rosychuk RJ, Lee BE, Cheung PY, Pang XL, Preiksaitis JK. Congenital cytomegalovirus infection in high-risk Canadian infants: Report of a pilot screening study. THE CANADIAN JOURNAL OF INFECTIOUS DISEASES & MEDICAL MICROBIOLOGY = JOURNAL CANADIEN DES MALADIES INFECTIEUSES ET DE LA MICROBIOLOGIE MEDICALE 2010; 21:e12-9. [PMID: 21358874 PMCID: PMC2852289 DOI: 10.1155/2010/942874] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
OBJECTIVES Congenital cytomegalovirus (cCMV) is the most common congenital infection; however, the epidemiology in Canada has not been recently examined. The present prospective study pilots tools for a population-based study of cCMV infection in Canada by determining the maternal seroprevalence and risk factors, the clinical characteristics and the incidence of cCMV using a variety of diagnostic tests in a cohort of high-risk infants in northern Alberta. METHODS All infants born at the Royal Alexandra Hospital in Edmonton, Alberta, from June 1, 2003, to May 31, 2004, were screened for the study. Eligible infants were those with very low birth weights (VLBWs) or small for gestational age (SGA). Maternal CMV serostatus was determined, and chart review and parental interviews were completed. Neonatal urine and throat cultures, and polymerase chain reaction (PCR) were performed. Dried blood spots (DBS) were tested for CMV by PCR. RESULTS In total, 213 infants were eligible for the study. Of these, 137 entered the study (79 VLBW and 58 SGA). Some families were not contacted for participation in the study due to neonatal deaths or early discharge. The mean age of the mothers was 27.6 years; 68% of the mothers were Caucasian and 16% were Aboriginal. The maternal CMV seroprevalence was 55%. Seropositivity was significantly associated with ethnicity (First Nations [100%]; Caucasian [34%]) and country of birth (outside Canada [94%]; Canadian born [45%]). The rate of cCMV was two in 137 (1.5%), with a rate of one in 79 (1.3%) for the VLBW infants and one in 58 (1.7%) for the SGA infants. Both had positive throat or urine specimens, but only the symptomatic infant was positive on DBS. CONCLUSIONS A cCMV screening program should be universal and routine to successfully screen all newborns. Maternal CMV seropositivity varies widely within the Canadian population. In the present pilot study, DBS PCR was not a sensitive screening tool and throat swab was the best screening specimen.
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Affiliation(s)
| | | | - Bonita E Lee
- Department of Pediatrics, University of Alberta
- Provincial Laboratory for Public Health (Microbiology), Edmonton, Alberta
| | | | - XL Pang
- Provincial Laboratory for Public Health (Microbiology), Edmonton, Alberta
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Mussi-Pinhata MM, Yamamoto AY, Moura Brito RM, de Lima Isaac M, de Carvalho e Oliveira PF, Boppana S, Britt WJ. Birth prevalence and natural history of congenital cytomegalovirus infection in a highly seroimmune population. Clin Infect Dis 2009; 49:522-8. [PMID: 19583520 DOI: 10.1086/600882] [Citation(s) in RCA: 194] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
BACKGROUND The natural history of congenital cytomegalovirus (CMV) infection is scarcely known in populations with high maternal CMV seroprevalence. This study evaluated the birth prevalence, clinical findings at birth, and hearing outcome in CMV-infected children from such a population. METHODS Consecutively born infants were screened for the presence of CMV in urine and/or saliva specimens during the first 2 weeks after birth. Neonatal clinical findings were recorded, and CMV-infected children were tested to document hearing function during follow-up. A subset of mothers of CMV-infected infants were prenatally tested for the presence of anti-CMV immunoglobulin G antibodies. RESULTS Congenital CMV infection was confirmed in 87 (1.08%; 95% confidence interval [CI], 0.86%-1.33%) of 8047 infants. Seven infants (8.1%; 95% CI, 3.3%-15.9%) had at least 1 clinical finding suggestive of CMV infection, and 4 (4.6%; 95% CI, 1.3%-11.3%) had >3 findings of systemic disease. Sensorineural hearing loss was found in 5 (8.6%; 95% CI, 2.9%-19.0%) of 58 children tested at a median age of 21 months. Bilateral profound hearing loss was observed in 2 children, and the hearing threshold was >60 decibels in all 5 children with hearing loss, including 2 children born to mothers with probable nonprimary CMV infection. CONCLUSIONS The results of this large newborn screening study in a population with high CMV seroimmunity provide additional evidence that congenital CMV disease occurs in populations with high seroprevalence rates, with a similar incidence of CMV-related hearing loss to that reported in the offspring of women from populations in developed countries with lower rates of seroimmunity to CMV.
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Affiliation(s)
- Marisa M Mussi-Pinhata
- Department of Pediatrics, University of São Paulo, Avenida Bandeirantes 3900, 14049-900, Ribeirão Preto, SP, Brazil.
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Kenneson A, Cannon MJ. Review and meta-analysis of the epidemiology of congenital cytomegalovirus (CMV) infection. Rev Med Virol 2007; 17:253-76. [PMID: 17579921 DOI: 10.1002/rmv.535] [Citation(s) in RCA: 1104] [Impact Index Per Article: 64.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
We reviewed studies that reported results of systematic cytomegalovirus (CMV) screening on fetuses and/or live-born infants. The overall birth prevalence of congenital CMV infection was 0.64%, but varied considerably among different study populations. About 11% of live-born infants with congenital CMV infection were symptomatic, but the inter-study differences in definitions of symptomatic cases limit the interpretation of these data. Non-white race, low socioeconomic status (SES), premature birth, and neonatal intensive care unit admittance were risk factors for congenital CMV infection. Birth prevalence increased with maternal CMV seroprevalence. Maternal seroprevalence accounted for 29% of the variance in birth prevalence between study populations. Maternal seroprevalence and birth prevalence were both higher in study populations that were ascertained at birth rather than in the prenatal period. Thus, timing of ascertainment should be considered when interpreting birth prevalence estimates. Birth prevalence was inversely correlated with mean maternal age, but this relationship was not significant when controlling for maternal seroprevalence. The rate of transmission to infants born to mothers who had a primary infection or a recurrent infection during pregnancy was 32% and 1.4%, respectively. Possible maternal primary infections (i.e. seropositive mother with CMV IgM) resulted in congenital infections about 20% of the time, but are likely to represent a mixture of primary and recurrent infections. In summary, CMV is a common congenital infection worldwide that can lead to permanent disabilities. There is an urgent need for interventions that can reduce the substantial burden of this often overlooked disease.
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Affiliation(s)
- Aileen Kenneson
- National Center on Birth Defects and Developmental Disabilities, Centers for Disease Control and Prevention, Atlanta, GA 30333, USA
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Yamamoto AY, Mussi-Pinhata MM, Marin LJ, Brito RM, Oliveira PFC, Coelho TB. Is saliva as reliable as urine for detection of cytomegalovirus DNA for neonatal screening of congenital CMV infection? J Clin Virol 2006; 36:228-30. [PMID: 16750653 DOI: 10.1016/j.jcv.2006.03.011] [Citation(s) in RCA: 104] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2005] [Revised: 03/21/2006] [Accepted: 03/22/2006] [Indexed: 11/22/2022]
Abstract
BACKGROUND There are no studies on the detection of cytomegalovirus (CMV) DNA by molecular methods in the saliva of newborn infants in large scale screening programs. OBJECTIVES To evaluate the usefulness of saliva as a sample for the neonatal screening of congenital CMV infection as compared to urine when processed by a PCR. STUDY DESIGN Saliva and urine samples were obtained during the first week of life. Both samples were attempted to be obtained from the first 2816 neonates. Subsequently, only saliva was obtained from other 1623 infants. Urine and saliva were processed by DNA-PCR. Confirmation of positive results was done by PCR and virus isolation by 3 weeks after birth. RESULTS A urine sample was not obtainable from 893/2816 (31.7%) infants. Both saliva and urine samples were obtained from the remaining 1923 infants. Of these, 28 (1.45%) were CMV-infected. There was 99.7% agreement between the results with both samples. CMV excretion was similar when PCR was applied to urine (1.3%) or to saliva (1.2%) samples. Among the subsequent 1623 infants for whom only a saliva sample was planned for screening, 16 (0.98%) were CMV-infected. CONCLUSIONS Saliva samples are as useful as urine for the identification of CMV-DNA in large use for screening programs.
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Affiliation(s)
- Aparecida Yulie Yamamoto
- Department of Pediatrics, Faculty of Medicine of Ribeirão Preto, University of São Paulo, Campus da USP; Av. Bandeirantes 3900, Ribeirão Preto, São Paulo 14049-900, Brazil.
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Schlesinger Y, Halle D, Eidelman AI, Reich D, Dayan D, Rudensky B, Raveh D, Branski D, Kaplan M, Shefer V, Miron D. Urine polymerase chain reaction as a screening tool for the detection of congenital cytomegalovirus infection. Arch Dis Child Fetal Neonatal Ed 2003; 88:F371-4. [PMID: 12937039 PMCID: PMC1721615 DOI: 10.1136/fn.88.5.f371] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
OBJECTIVES To define the incidence of congenital cytomegalovirus (CMV) infection in a defined population in Israel as diagnosed by urine polymerase chain reaction (PCR), and to assess the utility of this method for screening for congenital CMV infection. DESIGN A convenient sample of urine specimens from asymptomatic newborns were subjected to CMV PCR. Positive results were validated by urine tube culture and by determination of serum CMV IgM antibodies. Maternal CMV IgG was determined in a representative sample of mothers. Newborns with positive urine specimens underwent full clinical evaluation. Epidemiological characteristics of the mothers were extracted from the medical records. SETTINGS Two medical centres in Israel with different population characteristics. PATIENTS A total of 2000 newborns (1000 in each medical centre). MAIN OUTCOME MEASURE Presence of CMV DNA in the urine. RESULTS Despite significant epidemiological differences between the populations in the two hospitals, the CMV seroprevalence was similar, 80.5% and 85%. Fourteen of the 2000 newborns screened (0.7%) were PCR positive. Urine culture was positive in nine of 10 specimens; IgM was positive in only two of 13 newborns with positive PCR. Eleven newborns underwent full or partial evaluation, and only one (9%) was symptomatic. CONCLUSIONS The incidence of congenital CMV infection in the study population was 0.7%; over 90% were asymptomatic. Urinary CMV PCR is a reliable, rapid, and convenient method, and thus may serve as a screening tool for the detection of congenital CMV infection.
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Affiliation(s)
- Y Schlesinger
- Shaare Zedek Medical Center, Jerusalem, affiliated with Hebrew University School of Medicine, Jerusalem, Israel.
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Gaytant MA, Steegers EAP, Semmekrot BA, Merkus HMMW, Galama JMD. Congenital cytomegalovirus infection: review of the epidemiology and outcome. Obstet Gynecol Surv 2002; 57:245-56. [PMID: 11961482 DOI: 10.1097/00006254-200204000-00024] [Citation(s) in RCA: 167] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
UNLABELLED Cytomegalovirus (CMV) is one of the most common viral causes of congenital infection. A future decision to lower its incidence by vaccination will depend on epidemiological conditions within a country and on the safety of the vaccine to be used, because a life vaccine may cause latency and subsequent reactivation that still may harm the fetus. The aim was to review the epidemiological studies published so far, with respect to factors that affect the incidence of congenital CMV infection, and factors that may influence its outcome, such as preexisting maternal immunity. The study included the data of 19 studies that were retrieved from a MEDLINE search during the period 1977 to 1997. The incidence of congenital CMV infection varied between 0.15% and 2.0% and seemed to correlate with the level of preexisting immunity in the population. Although preexisting maternal immunity was reported to strongly reduce transmission, the severity of congenital CMV infection (symptoms at birth and or sequelae later in life) was not significantly greater after virus transmission due to a primary infection of the mother as compared with recurrence or reinfection. The data indicate that preexisting immunity of the mother does not significantly mitigate the outcome of congenital infection. Moreover, life vaccines may bear a serious risk when transmittable to the fetus. TARGET AUDIENCE Obstetricians and Gynecologists, Family Physicians. LEARNING OBJECTIVES After completion of this article, the reader will be able to describe the natural course of a CMV infection, to list the potential sequelae of a congenital CMV infection, to outline potential strategies to prevent transmission of CMV, and to summarize the diagnostic work up of a patient with a potential CMV infection.
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Affiliation(s)
- Michael A Gaytant
- Department of Internal Medicine, Slingerland Hospital Doetinchem, The Netherlands
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