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Author Maureen Diaz

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Causes of fever in primary care in Southeast Asia and the performance of C-reactive protein in discriminating bacterial from viral pathogens.

Thomas Althaus, Janjira Thaipadungpanit, Rachel C Greer, Myo Maung Maung Swe, Sabine Dittrich, Pimnara Peerawaranun, Pieter W Smit, Tri Wangrangsimakul, Stuart Blacksell, Jonas M Winchell, Maureen H Diaz, Nicholas P J Day, Frank Smithuis, Paul Turner, Yoel Lubell,

OBJECTIVES:This study investigated causes of fever in the primary levels of care in Southeast Asia, and evaluated whether C-reactive protein (CRP) could distinguish bacterial from viral pathogens. METHODS:Blood and nasopharyngeal swab specimens were taken from children and adults with fever (>37.5 °C) or history of fever (<14 days) in Thailand ... Read more >>

Int. J. Infect. Dis. (International journal of infectious diseases : IJID : official publication of the International Society for Infectious Diseases)
[2020, 96:334-342]

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Evaluation of Commercial Molecular Diagnostic Methods for Detection and Determination of Macrolide Resistance in Mycoplasma pneumoniae.

Sixto M Leal, Arthur H Totten, Li Xiao, Donna M Crabb, Amy Ratliff, Lynn B Duffy, Karen B Fowler, Emily Mixon, Jonas M Winchell, Maureen H Diaz, Alvaro J Benitez, Bernard J Wolff, Xuan Qin, Y-W Tang, Mark Gonzalez, Raj Selvarangan, Tao Hong, Edward Brooks, Steve Dallas, T Prescott Atkinson, Xiaotian Zheng, Jennifer Dien Bard, Ken B Waites,

We evaluated six commercial molecular tests targeting Mycoplasma pneumoniae, namely, the BioFire FilmArray respiratory panel (RP), the Meridian Alethia Mycoplasma Direct, the GenMark ePlex respiratory pathogen panel (RPP), the Luminex NxTAG RPP, the ELITech ELITe InGenius Mycoplasma MGB research use only (RUO) PCR, and the SpeeDx Resistance Plus MP assays. ... Read more >>

J. Clin. Microbiol. (Journal of clinical microbiology)
[2020, 58(6):]

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2173. Detection of Chlamydia psittaci by rtPCR in Outbreak Specimens Tested at CDC—2018.

Olivia L McGovern, Kelly Shaw, Christine Szablewski, Julie Gabel, Caroline Holsinger, Skyler Brennan, Bernard Wolff, Alvaro J Benitez, Maureen Diaz, Kathleen A Thurman, Jonas Winchell, Miwako Kobayashi,

AbstractBackgroundPsittacosis is a respiratory illness caused by Chlamydia psittaci. The most commonly available diagnostic tests are serologic tests, which have low sensitivity and can cross-react with other chlamydial species. Serologic tests also require paired sera collected weeks apart, which is impractical for patient management. Real-time polymerase chain reaction (rtPCR) testing ... Read more >>

Open Forum Infect Dis (Open forum infectious diseases)
[2019, 6(Suppl 2):S737-S738]

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Development and Implementation of Multiplex TaqMan Array Cards for Specimen Testing at Child Health and Mortality Prevention Surveillance Site Laboratories.

Maureen H Diaz, Jessica L Waller, M Jordan Theodore, Nishi Patel, Bernard J Wolff, Alvaro J Benitez, Timothy Morris, Pratima L Raghunathan, Robert F Breiman, Cynthia G Whitney, Dianna M Blau, Jonas M Winchell,

Child Health and Mortality Prevention Surveillance (CHAMPS) laboratories are employing a variety of laboratory methods to identify infectious agents contributing to deaths of children <5 years old and stillbirths in sub-Saharan Africa and South Asia. In support of this long-term objective, our team developed TaqMan Array Cards (TACs) for testing ... Read more >>

Clin. Infect. Dis. (Clinical infectious diseases : an official publication of the Infectious Diseases Society of America)
[2019, 69(Suppl 4):S311-S321]

Cited: 1 time

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Assessment of eight nucleic acid amplification technologies for potential use to detect infectious agents in low-resource settings.

Jason L Cantera, Heather White, Maureen H Diaz, Shivani G Beall, Jonas M Winchell, Lorraine Lillis, Michael Kalnoky, James Gallarda, David S Boyle,

Nucleic acid amplification technologies (NAATs) are high-performance tools for rapidly and accurately detecting infectious agents. They are widely used in high-income countries to diagnose disease and improve patient care. The complexities associated with test methods, reagents, equipment, quality control and assurance require dedicated laboratories with trained staff, which can exclude ... Read more >>

PLoS ONE (PloS one)
[2019, 14(4):e0215756]

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Performance and workflow assessment of six nucleic acid extraction technologies for use in resource limited settings.

Shivani G Beall, Jason Cantera, Maureen H Diaz, Jonas M Winchell, Lorraine Lillis, Heather White, Michael Kalnoky, James Gallarda, David S Boyle,

Infectious disease nucleic acid amplification technologies (NAAT) have superior sensitivity, specificity, and rapid time to result compared to traditional microbiological methods. Recovery of concentrated, high quality pathogen nucleic acid (NA) from complex specimen matrices is required for optimal performance of several NA amplification/detection technologies such as polymerase chain reaction (PCR). ... Read more >>

PLoS ONE (PloS one)
[2019, 14(4):e0215753]

Cited: 1 time

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Surveillance for incidence and etiology of early-onset neonatal sepsis in Soweto, South Africa.

Sithembiso C Velaphi, Matthew Westercamp, Malefu Moleleki, Tracy Pondo, Ziyaad Dangor, Nicole Wolter, Anne von Gottberg, Nong Shang, Alicia Demirjian, Jonas M Winchell, Maureen H Diaz, Firdose Nakwa, Grace Okudo, Jeannette Wadula, Clare Cutland, Stephanie J Schrag, Shabir A Madhi,

BACKGROUND:Globally, over 400,000 neonatal deaths in 2015 were attributed to sepsis, however, the incidence and etiologies of these infections are largely unknown in low-middle income countries. We aimed to determine incidence and etiology of community-acquired early-onset (<72 hours age) sepsis (EOS) using culture and molecular diagnostics. METHODS:This was a prospective ... Read more >>

PLoS ONE (PloS one)
[2019, 14(4):e0214077]

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Mycoplasma pneumoniae Among Children Hospitalized With Community-acquired Pneumonia.

Preeta K Kutty, Seema Jain, Thomas H Taylor, Anna M Bramley, Maureen H Diaz, Krow Ampofo, Sandra R Arnold, Derek J Williams, Kathryn M Edwards, Jonathan A McCullers, Andrew T Pavia, Jonas M Winchell, Stephanie J Schrag, Lauri A Hicks,

Background:The epidemiology of Mycoplasma pneumoniae (Mp) among US children (<18 years) hospitalized with community-acquired pneumonia (CAP) is poorly understood. Methods:In the Etiology of Pneumonia in the Community study, we prospectively enrolled 2254 children hospitalized with radiographically confirmed pneumonia from January 2010-June 2012 and tested nasopharyngeal/oropharyngeal swabs for Mp using real-time ... Read more >>

Clin. Infect. Dis. (Clinical infectious diseases : an official publication of the Infectious Diseases Society of America)
[2019, 68(1):5-12]

Cited: 4 times

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Outbreak of Neisseria meningitidis serogroup C outside the meningitis belt-Liberia, 2017: an epidemiological and laboratory investigation.

Catherine H Bozio, Jeni Vuong, E Kainne Dokubo, Mosoka P Fallah, Lucy A McNamara, Caelin C Potts, John Doedeh, Miatta Gbanya, Adam C Retchless, Jaymin C Patel, Thomas A Clark, Henry Kohar, Thomas Nagbe, Peter Clement, Victoria Katawera, Nuha Mahmoud, Harouna M Djingarey, Anne Perrocheau, Dhamari Naidoo, Mardia Stone, Roseline N George, Desmond Williams, Alex Gasasira, Tolbert Nyenswah, Xin Wang, LeAnne M Fox, ,

BACKGROUND:On April 25, 2017, a cluster of unexplained illnesses and deaths associated with a funeral was reported in Sinoe County, Liberia. Molecular testing identified Neisseria meningitidis serogroup C (NmC) in specimens from patients. We describe the epidemiological investigation of this cluster and metagenomic characterisation of the outbreak strain. METHODS:We collected ... Read more >>

Lancet Infect Dis (The Lancet. Infectious diseases)
[2018, 18(12):1360-1367]

Cited: 2 times

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Causes and incidence of community-acquired serious infections among young children in south Asia (ANISA): an observational cohort study.

Samir K Saha, Stephanie J Schrag, Shams El Arifeen, Luke C Mullany, Mohammad Shahidul Islam, Nong Shang, Shamim A Qazi, Anita K M Zaidi, Zulfiqar A Bhutta, Anuradha Bose, Pinaki Panigrahi, Sajid B Soofi, Nicholas E Connor, Dipak K Mitra, Rita Isaac, Jonas M Winchell, Melissa L Arvay, Maksuda Islam, Yasir Shafiq, Imran Nisar, Benazir Baloch, Furqan Kabir, Murtaza Ali, Maureen H Diaz, Radhanath Satpathy, Pritish Nanda, Bijaya K Padhi, Sailajanandan Parida, Aneeta Hotwani, M Hasanuzzaman, Sheraz Ahmed, Mohammad Belal Hossain, Shabina Ariff, Imran Ahmed, Syed Mamun Ibne Moin, Arif Mahmud, Jessica L Waller, Iftekhar Rafiqullah, Mohammad A Quaiyum, Nazma Begum, Veeraraghavan Balaji, Jasmin Halen, A S M Nawshad Uddin Ahmed, Martin W Weber, Davidson H Hamer, Patricia L Hibberd, Qazi Sadeq-Ur Rahman, Venkat Raghava Mogan, Tanvir Hossain, Lesley McGee, Shalini Anandan, Anran Liu, Kalpana Panigrahi, Asha Mary Abraham, Abdullah H Baqui,

BACKGROUND:More than 500 000 neonatal deaths per year result from possible serious bacterial infections (pSBIs), but the causes are largely unknown. We investigated the incidence of community-acquired infections caused by specific organisms among neonates in south Asia. METHODS:From 2011 to 2014, we identified babies through population-based pregnancy surveillance at five sites ... Read more >>

Lancet (Lancet (London, England))
[2018, 392(10142):145-159]

Cited: 13 times

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Epidemiology and Molecular Identification and Characterization of Mycoplasma pneumoniae, South Africa, 2012-2015.

Maimuna Carrim, Nicole Wolter, Alvaro J Benitez, Stefano Tempia, Mignon du Plessis, Sibongile Walaza, Fahima Moosa, Maureen H Diaz, Bernard J Wolff, Florette K Treurnicht, Orienka Hellferscee, Halima Dawood, Ebrahim Variava, Cheryl Cohen, Jonas M Winchell, Anne von Gottberg,

During 2012-2015, we tested respiratory specimens from patients with severe respiratory illness (SRI), patients with influenza-like illness (ILI), and controls in South Africa by real-time PCR for Mycoplasma pneumoniae, followed by culture and molecular characterization of positive samples. M. pneumoniae prevalence was 1.6% among SRI patients, 0.7% among ILI patients, ... Read more >>

Emerging Infect. Dis. (Emerging infectious diseases)
[2018, 24(3):506-513]

Cited: 2 times

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Rapid Laboratory Identification of Neisseria meningitidis Serogroup C as the Cause of an Outbreak - Liberia, 2017.

Jaymin C Patel, Josiah George, Jeni Vuong, Caelin C Potts, Catherine Bozio, Thomas A Clark, Jerry Thomas, Joshua Schier, Arthur Chang, Jessica L Waller, Maureen H Diaz, Melissa Whaley, Laurel T Jenkins, Serena Fuller, Desmond E Williams, John T Redd, Ray R Arthur, Fahn Taweh, Yatta Vera Walker, Patrick Hardy, Maxwell Freeman, Victoria Katawera, Gulu Gwesa, Miatta Z Gbanya, Peter Clement, Henry Kohar, Mardia Stone, Mosoka Fallah, Tolbert Nyenswah, Jonas M Winchell, Xin Wang, Lucy A McNamara, E Kainne Dokubo, LeAnne M Fox,

On April 25, 2017, a cluster of unexplained illness and deaths among persons who had attended a funeral during April 21-22 was reported in Sinoe County, Liberia (1). Using a broad initial case definition, 31 cases were identified, including 13 (42%) deaths. Twenty-seven cases were from Sinoe County (1), and ... Read more >>

MMWR Morb. Mortal. Wkly. Rep. (MMWR. Morbidity and mortality weekly report)
[2017, 66(42):1144-1147]

Cited: 7 times

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Correction: Comprehensive bioinformatics analysis of Mycoplasma pneumoniae genomes to investigate underlying population structure and type-specific determinants.

Maureen H Diaz, Heta P Desai, Shatavia S Morrison, Alvaro J Benitez, Bernard J Wolff, Jason Caravas, Timothy D Read, Deborah Dean, Jonas M Winchell,

[This corrects the article DOI: 10.1371/journal.pone.0174701.]. ... Read more >>

PLoS ONE (PloS one)
[2017, 12(10):e0186030]

Cited: 1 time

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Development of a multiplex taqMan real-time PCR assay for typing of Mycoplasma pneumoniae based on type-specific indels identified through whole genome sequencing.

Bernard J Wolff, Alvaro J Benitez, Heta P Desai, Shatavia S Morrison, Maureen H Diaz, Jonas M Winchell,

We developed a multiplex real-time PCR assay for simultaneously detecting M. pneumoniae and typing into historically-defined P1 types. Typing was achieved based on the presence of short type-specific indels identified through whole genome sequencing. This assay was 100% specific compared to existing methods and may be useful during epidemiologic investigations. ... Read more >>

Diagn. Microbiol. Infect. Dis. (Diagnostic microbiology and infectious disease)
[2017, 87(3):203-206]

Cited: 4 times

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Epidemiology and Molecular Characteristics of Mycoplasma pneumoniae During an Outbreak of M. pneumoniae-associated Stevens-Johnson Syndrome.

Louise K Francois Watkins, Daniel Olson, Maureen H Diaz, Xia Lin, Alicia Demirjian, Alvaro J Benitez, Jonas M Winchell, Christine C Robinson, Kirk A Bol, Mary P Glodé, Samuel R Dominguez, Lisa A Miller, Preeta K Kutty,

BACKGROUND:An increase in Mycoplasma pneumoniae-associated Stevens-Johnson syndrome (SJS) cases at a Colorado pediatric hospital led to an outbreak investigation. We describe the epidemiologic and molecular characteristics of M. pneumoniae among SJS case-patients and surrounding community members during the outbreak. METHODS:M. pneumoniae polymerase chain reaction-positive respiratory specimens from 5 Colorado hospitals ... Read more >>

Pediatr. Infect. Dis. J. (The Pediatric infectious disease journal)
[2017, 36(6):564-571]

Cited: 7 times

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Molecular Characterization of Mycoplasma pneumoniae Infections in Two Rural Populations of Thailand from 2009 to 2012.

Toni Whistler, Pongpun Sawatwong, Maureen H Diaz, Alvaro J Benitez, Bernard J Wolff, Patranuch Sapchookul, Somsak Thamthitiwat, Jonas M Winchell,

Studies on Mycoplasma pneumoniae in Thailand have focused on urban centers and have not included molecular characterization. In an attempt to provide a more comprehensive understanding of this organism, we conducted a systematic random sampling to identify 3,000 nasopharyngeal swab specimens collected from January 2009 through July 2012 during population-based ... Read more >>

J. Clin. Microbiol. (Journal of clinical microbiology)
[2017, 55(7):2222-2233]

Cited: 2 times

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Comprehensive bioinformatics analysis of Mycoplasma pneumoniae genomes to investigate underlying population structure and type-specific determinants.

Maureen H Diaz, Heta P Desai, Shatavia S Morrison, Alvaro J Benitez, Bernard J Wolff, Jason Caravas, Timothy D Read, Deborah Dean, Jonas M Winchell,

Mycoplasma pneumoniae is a significant cause of respiratory illness worldwide. Despite a minimal and highly conserved genome, genetic diversity within the species may impact disease. We performed whole genome sequencing (WGS) analysis of 107 M. pneumoniae isolates, including 67 newly sequenced using the Pacific BioSciences RS II and/or Illumina MiSeq ... Read more >>

PLoS ONE (PloS one)
[2017, 12(4):e0174701]

Cited: 7 times

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Complete Genome Sequence of Mycoplasma pneumoniae Type 2 Reference Strain FH Using Single-Molecule Real-Time Sequencing Technology.

Heta P Desai, Shatavia S Morrison, Maureen H Diaz, Alvaro J Benitez, Bernard J Wolff, Jonas M Winchell,

Mycoplasma pneumoniae type 2 strain FH was previously sequenced with Illumina (FH-Illumina) and 454 (FH-454) technologies according to Xiao et al. (2015) and Krishnakumar et al. (2010). Comparative analyses revealed differences in genomic content between these sequences, including a 6-kb region absent from the FH-454 submission. Here, we present a ... Read more >>

Genome Announc (Genome announcements)
[2017, 5(8):]

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Centralized Data Management in a Multicountry, Multisite Population-based Study.

Qazi Sadeq-ur Rahman, Mohammad Shahidul Islam, Belal Hossain, Tanvir Hossain, Nicholas E Connor, Md Jahiduj Jaman, Md Mahmudur Rahman, A S M Nawshad Uddin Ahmed, Imran Ahmed, Murtaza Ali, Syed Mamun Ibne Moin, Luke Mullany, Samir K Saha, Shams El Arifeen, ,

A centralized data management system was developed for data collection and processing for the Aetiology of Neonatal Infection in South Asia (ANISA) study. ANISA is a longitudinal cohort study involving neonatal infection surveillance and etiology detection in multiple sites in South Asia. The primary goal of designing such a system ... Read more >>

Pediatr. Infect. Dis. J. (The Pediatric infectious disease journal)
[2016, 35(5 Suppl 1):S23-8]

Cited: 4 times

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Simultaneous detection of Legionella species and L. anisa, L. bozemanii, L. longbeachae and L. micdadei using conserved primers and multiple probes in a multiplex real-time PCR assay.

Kristen E Cross, Jeffrey W Mercante, Alvaro J Benitez, Ellen W Brown, Maureen H Diaz, Jonas M Winchell,

Legionnaires' disease is a severe respiratory disease that is estimated to cause between 8,000 and 18,000 hospitalizations each year, though the exact burden is unknown due to under-utilization of diagnostic testing. Although Legionella pneumophila is the most common species detected in clinical cases (80-90%), other species have also been reported ... Read more >>

Diagn. Microbiol. Infect. Dis. (Diagnostic microbiology and infectious disease)
[2016, 85(3):295-301]

Cited: 1 time

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Development and Implementation of the ANISA Labeling and Tracking System for Biological Specimens.

Nicholas E Connor, Tanvir Hossain, Qazi Sadeq-ur Rahman, Mohammad Shahidul Islam, Maksuda Islam, Belal Hossain, Lesley McGee, Maureen Helen Diaz, Stephanie J Schrag, Shams El Arifeen, Samir K Saha, ,

The Aetiology of Neonatal Infection in South Asia study is a major effort to determine the causes of community-acquired neonatal infections. It involves collecting epidemiological, clinical and laboratory data in 5 sites in 3 countries. The field and laboratory research operations are streamlined to maintain integrity and validity while operating ... Read more >>

Pediatr. Infect. Dis. J. (The Pediatric infectious disease journal)
[2016, 35(5 Suppl 1):S29-34]

Cited: 2 times

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Methods Employed in Monitoring and Evaluating Field and Laboratory Systems in the ANISA Study: Ensuring Quality.

Nicholas E Connor, Mohammad Shahidul Islam, Melissa L Arvay, Abdullah H Baqui, Anita K Zaidi, Sajid B Soofi, Pinaki Panigrahi, Anuradha Bose, Maksuda Islam, Shams El Arifeen, Samir K Saha, Shamim A Qazi, ,

The Aetiology of Neonatal Infection in South Asia (ANISA) study maintains operations in Bangladesh, India and Pakistan. We developed and deployed a multilayered monitoring system to measure performance indicators of field sites and laboratory operations. This system allows for real-time provision of feedback to study site teams and project stakeholders. ... Read more >>

Pediatr. Infect. Dis. J. (The Pediatric infectious disease journal)
[2016, 35(5 Suppl 1):S39-44]

Cited: 3 times

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Laboratory Methods for Determining Etiology of Neonatal Infection at Population-based Sites in South Asia: The ANISA Study.

Samir K Saha, Mohammad Shahidul Islam, Shahida M Qureshi, Belal Hossain, Maksuda Islam, Anita K Zaidi, Joyanta K Modak, Hasan M Al-Emran, Maureen H Diaz, Lesley McGee, Jonas M Winchell, ,

The Aetiology of Neonatal Infection in South Asia (ANISA) study aims to determine the etiology of neonatal infections in 5 population-based sites in Bangladesh, India and Pakistan.The main laboratory challenges in ANISA were selection and consistent implementation of laboratory methods at participating sites with varied infrastructure. The other specific challenges ... Read more >>

Pediatr. Infect. Dis. J. (The Pediatric infectious disease journal)
[2016, 35(5 Suppl 1):S16-22]

Cited: 3 times

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Identification of Bacterial and Viral Codetections With Mycoplasma pneumoniae Using the TaqMan Array Card in Patients Hospitalized With Community-Acquired Pneumonia.

Maureen H Diaz, Kristen E Cross, Alvaro J Benitez, Lauri A Hicks, Preeta Kutty, Anna M Bramley, James D Chappell, Weston Hymas, Anami Patel, Chao Qi, Derek J Williams, Sandra R Arnold, Krow Ampofo, Wesley H Self, Carlos G Grijalva, Evan J Anderson, Jonathan A McCullers, Andrew T Pavia, Richard G Wunderink, Kathryn M Edwards, Seema Jain, Jonas M Winchell,

Mycoplasma pneumoniae was detected in a number of patients with community-acquired pneumonia in a recent prospective study. To assess whether other pathogens were also detected in these patients, TaqMan Array Cards were used to test 216 M pneumoniae-positive respiratory specimens for 25 additional viral and bacterial respiratory pathogens. It is ... Read more >>

Open Forum Infect Dis (Open forum infectious diseases)
[2016, 3(2):ofw071]

Cited: 7 times

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Multistate Outbreak of Respiratory Infections Among Unaccompanied Children, June 2014-July 2014.

Sara Tomczyk, Carmen S Arriola, Bernard Beall, Alvaro Benitez, Stephen R Benoit, LaShondra Berman, Joseph Bresee, Maria da Gloria Carvalho, Amanda Cohn, Kristen Cross, Maureen H Diaz, Louise K Francois Watkins, Ryan Gierke, Jose E Hagan, Aaron M Harris, Seema Jain, Lindsay Kim, Miwako Kobayashi, Stephen Lindstrom, Lesley McGee, Meredith McMorrow, Benjamin L Metcalf, Matthew R Moore, Iaci Moura, W Allan Nix, Edith Nyangoma, M Steven Oberste, Sonja J Olsen, Fabiana Pimenta, Christina Socias, Kathleen Thurman, Jessica Waller, Stephen H Waterman, Matthew Westercamp, Melinda Wharton, Cynthia G Whitney, Jonas M Winchell, Bernard Wolff, Curi Kim,

From January 2014-July 2014, more than 46 000 unaccompanied children (UC) from Central America crossed the US-Mexico border. In June-July, UC aged 9-17 years in 4 shelters and 1 processing center in 4 states were hospitalized with acute respiratory illness. We conducted a multistate investigation to interrupt disease transmission.Medical charts ... Read more >>

Clin. Infect. Dis. (Clinical infectious diseases : an official publication of the Infectious Diseases Society of America)
[2016, 63(1):48-56]

Cited: 4 times

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