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Salazar-Parra MA, Cruz-Neri RU, Trujillo-Trujillo XA, Dominguez-Mora JJ, Cruz-Neri HI, Guzmán-Díaz JM, Guzmán-Ruvalcaba MJ, Vega-Gastelum JO, Ascencio-Díaz KV, Zarate-Casas MF, González-Ponce FY, Barbosa-Camacho FJ, Fuentes-Orozco C, Cervantes-Guevara G, Cervantes-Pérez E, Cervantes-Cardona GA, Cortés-Flores AO, González-Ojeda A. Effectiveness of Saccharomyces Boulardii CNCM I-745 probiotic in acute inflammatory viral diarrhoea in adults: results from a single-centre randomized trial. BMC Gastroenterol 2023; 23:229. [PMID: 37400812 DOI: 10.1186/s12876-023-02863-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Accepted: 06/27/2023] [Indexed: 07/05/2023] Open
Abstract
BACKGROUND Probiotics are effective for treating acute infectious diarrhoea caused by bacteria, but there are inconsistent results for the effectiveness of probiotics for diarrhoea caused by viruses. In this article we want to determine whether Sb supplementation has an effect on acute inflammatory viral diarrhoea diagnosed with the multiplex panel PCR test. The aim of this study was to evaluate the efficacy of Saccharomyces boulardii (Sb) as a treatment in patients diagnosed with viral acute diarrhoea. METHODS From February 2021 to December 2021, 46 patients with a confirmed diagnosis of viral acute diarrhoea diagnosed with the polymerase chain reaction multiplex assay were enrolled in a double-blind, randomized placebo-controlled trial. Patients received paracetamol 500 mg as a standard analgesic and 200 mg of Trimebutine as an antispasmodic treatment plus 600 mg of Sb (n = 23, 1 × 109/100 mL Colony forming unit) or a placebo (n = 23) orally once daily for eight days. The improvement in and severity of symptoms were measured using a symptom diary, the Patient Global Impression and the Patient Global Impression of Change scales (days 4 and 8), both answered and recorded by the patient. RESULTS Of the 46 patients who completed treatment, 24 (52%) were men and 22 (48%) were women. The average age was 35.6 ± 12.28 years (range 18 to 61 years). The average duration of the evolution of illness at the time of diagnosis was 0.85 ± 0.73 days (maximum 2 days). On day 4 after the diagnosis, 20% reported pain and 2% reported fever, but on day 8, no patient reported pain or fever. On day 4, 70% of patients in the Sb group and 26% in the placebo group reported improvement (P = 0.03), based on the Patients' Global Impression of Change scale, which assesses patient's rating of overall improvement. These findings suggest that 3 to 4 days of treatment with Sb helped to improve symptoms of diarrhoea caused by a virus. CONCLUSION Treatment with Sb on acute inflammatory diarrhoea of viral aetiology shows no changes regarding the severity of the symptoms; nevertheless, it seems to impact improvement positively. TRIAL REGISTRATION 22CEI00320171130 dated on 16/12/2020, NCT05226052 dated on 07/02/2022.
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Affiliation(s)
- Marcela Ag Salazar-Parra
- Biomedical Research Unit 02, Western National Medical Center, Mexican Institute of Social Security, Avenida Belisario Domínguez #1000, Colonia Independencia, Guadalajara, Jalisco, 44340, Mexico
- Department of Medical Science, University of Colima, Avenida Universidad #333, Colonia las Víboras, Colima, Colima, 28040, México
| | - Roberto U Cruz-Neri
- Surgeon and Coloproctologist, Puerta de Hierro Sur Medical Center, Tlajomulco de Zúñiga, Avenida Adolfo López Mateos Sur #1401, Colonia La Tijera, Jalisco, 45640, Mexico
| | - Xóchitl Ar Trujillo-Trujillo
- University of Colima, Universitary Center of Biomedical Research, Colonia Villas de San Sebastián, Avenida 25 de Julio #965, Colima, Colima, 28045, Mexico
| | - Juan J Dominguez-Mora
- Puerta de Hierro Medical Center, Tlajomulco de Zúñiga, Avenida Adolfo López Mateos Sur #1401, Colonia La Tijera, Jalisco, 45640, Mexico
| | - Héctor I Cruz-Neri
- High Specialty Geriatric Care Unit, Hospital Civil Fray Antonio Alcalde, Calle Hospital #278, Colonia El Retiro, Guadalajara, Jalisco, 44280, México
| | - Jazmín M Guzmán-Díaz
- Biomedical Research Unit 02, Western National Medical Center, Mexican Institute of Social Security, Avenida Belisario Domínguez #1000, Colonia Independencia, Guadalajara, Jalisco, 44340, Mexico
| | - Mario J Guzmán-Ruvalcaba
- Biomedical Research Unit 02, Western National Medical Center, Mexican Institute of Social Security, Avenida Belisario Domínguez #1000, Colonia Independencia, Guadalajara, Jalisco, 44340, Mexico
| | - Jesús O Vega-Gastelum
- Biomedical Research Unit 02, Western National Medical Center, Mexican Institute of Social Security, Avenida Belisario Domínguez #1000, Colonia Independencia, Guadalajara, Jalisco, 44340, Mexico
| | - Kriscia V Ascencio-Díaz
- Biomedical Research Unit 02, Western National Medical Center, Mexican Institute of Social Security, Avenida Belisario Domínguez #1000, Colonia Independencia, Guadalajara, Jalisco, 44340, Mexico
| | - Maria F Zarate-Casas
- Biomedical Research Unit 02, Western National Medical Center, Mexican Institute of Social Security, Avenida Belisario Domínguez #1000, Colonia Independencia, Guadalajara, Jalisco, 44340, Mexico
| | - Fanny Y González-Ponce
- Biomedical Research Unit 02, Western National Medical Center, Mexican Institute of Social Security, Avenida Belisario Domínguez #1000, Colonia Independencia, Guadalajara, Jalisco, 44340, Mexico
| | - Francisco J Barbosa-Camacho
- Biomedical Research Unit 02, Western National Medical Center, Mexican Institute of Social Security, Avenida Belisario Domínguez #1000, Colonia Independencia, Guadalajara, Jalisco, 44340, Mexico
| | - Clotilde Fuentes-Orozco
- Biomedical Research Unit 02, Western National Medical Center, Mexican Institute of Social Security, Avenida Belisario Domínguez #1000, Colonia Independencia, Guadalajara, Jalisco, 44340, Mexico
| | - Gabino Cervantes-Guevara
- Departamento de Bienestar y Desarrollo Sustentable, Centro Universitario del Norte, Universidad de Guadalajara, Carretera Federal No. 23, Km. 191, Colotlán, Jalisco, C.P. 46200, México
| | - Enrique Cervantes-Pérez
- Departamento de Medicina Interna, Centro Universitario de Ciencias de la Salud, Hospital Civil de Guadalajara Fray Antonio Alcalde, Universidad de Guadalajara, Calle Hospital 278, Col. El Retiro, Guadalajara, Jalisco, 95100, México
| | - Guillermo Alonso Cervantes-Cardona
- Departamento de Disciplinas Filosófico, Metodológicas e Instrumentales, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Sierra Mojada 950 Edificio "N" planta alta, Col. Independencia, Guadalajara, Jalisco, 44340, México
| | - Ana Olivia Cortés-Flores
- Surgical Oncology, Anker Global Oncology, Av. Juan Palomar y Arias 530, Guadalajara, Monraz, Guadalajara, Jal. Mexico, 44670, Mexico
| | - Alejandro González-Ojeda
- Biomedical Research Unit 02, Western National Medical Center, Mexican Institute of Social Security, Avenida Belisario Domínguez #1000, Colonia Independencia, Guadalajara, Jalisco, 44340, Mexico.
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Xu J, Xue Y, Bolinger AA, Li J, Zhou M, Chen H, Li H, Zhou J. Therapeutic potential of salicylamide derivatives for combating viral infections. Med Res Rev 2023; 43:897-931. [PMID: 36905090 PMCID: PMC10247541 DOI: 10.1002/med.21940] [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: 11/23/2021] [Revised: 11/09/2022] [Accepted: 02/26/2023] [Indexed: 03/12/2023]
Abstract
Since time immemorial human beings have constantly been fighting against viral infections. The ongoing and devastating coronavirus disease 2019 pandemic represents one of the most severe and most significant public health emergencies in human history, highlighting an urgent need to develop broad-spectrum antiviral agents. Salicylamide (2-hydroxybenzamide) derivatives, represented by niclosamide and nitazoxanide, inhibit the replication of a broad range of RNA and DNA viruses such as flavivirus, influenza A virus, and coronavirus. Moreover, nitazoxanide was effective in clinical trials against different viral infections including diarrhea caused by rotavirus and norovirus, uncomplicated influenza A and B, hepatitis B, and hepatitis C. In this review, we summarize the broad antiviral activities of salicylamide derivatives, the clinical progress, and the potential targets or mechanisms against different viral infections and highlight their therapeutic potential in combating the circulating and emerging viral infections in the future.
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Affiliation(s)
- Jimin Xu
- Chemical Biology Program, Department of Pharmacology and Toxicology, University of Texas Medical Branch, Galveston, Texas 77555, United States
| | - Yu Xue
- Chemical Biology Program, Department of Pharmacology and Toxicology, University of Texas Medical Branch, Galveston, Texas 77555, United States
| | - Andrew A. Bolinger
- Chemical Biology Program, Department of Pharmacology and Toxicology, University of Texas Medical Branch, Galveston, Texas 77555, United States
| | - Jun Li
- Chemical Biology Program, Department of Pharmacology and Toxicology, University of Texas Medical Branch, Galveston, Texas 77555, United States
| | - Mingxiang Zhou
- Chemical Biology Program, Department of Pharmacology and Toxicology, University of Texas Medical Branch, Galveston, Texas 77555, United States
| | - Haiying Chen
- Chemical Biology Program, Department of Pharmacology and Toxicology, University of Texas Medical Branch, Galveston, Texas 77555, United States
| | - Hongmin Li
- Department of Pharmacology and Toxicology, College of Pharmacy, University of Arizona, Tucson, Arizona 85721, United States
| | - Jia Zhou
- Chemical Biology Program, Department of Pharmacology and Toxicology, University of Texas Medical Branch, Galveston, Texas 77555, United States
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Kobayashi D, Yokota K, Yamagata-Uyama S, Saito M. Follow-up evaluation for norovirus asymptomatic infection among healthy adults: a prospective matched cohort study. Infect Dis (Lond) 2023; 55:108-115. [PMID: 36272144 DOI: 10.1080/23744235.2022.2134447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
OBJECTIVES No study has evaluated the follow-up of asymptomatic norovirus infection among healthy adults. This study compared norovirus detection rates between previously known norovirus-positive and norovirus-negative adults without diarrheal symptoms, and evaluated reinfection risk among the previously-norovirus-positive group, and new asymptomatic norovirus infection risk among the previously-norovirus-negative group after 600 days. METHODS This prospective age- and sex-matched cohort study, conducted in 2019 at a Japan teaching hospital, included apparently healthy asymptomatic adults with a positive norovirus result and those with a negative result (ratio 1:3) during the 2016-2017 screening. The primary outcome was real-time reverse-transcription polymerase chain reaction-confirmed norovirus in stool specimens. We evaluated descriptive statistics and associated factors, including demographics, social habits, and clinical parameters. RESULTS Of 288 participants [mean age, 59.9 (standard deviation: 12.6) years; male, 143 (49.7%)], 73 [genogroup (G) I 35; GII 37; both included 1 each] were positive for norovirus previously, while 215 were negative. After a median of 599 (interquartile range 515-799) days between baseline screening and follow-up, 14 (4.9%; GI 0; GII 14) tested positive for norovirus (2.7% and 5.6% among positive- and negative-norovirus groups at baseline, respectively). Among previously norovirus-negative participants, being older, having elevated blood pressure and haemoglobin A1c level, and drinking Japanese sake at baseline were associated with positive results at follow-up. CONCLUSIONS Genogroup homotypic protective effect may exist for subsequent asymptomatic infection. There may be higher risks of future asymptomatic norovirus infection in previously no-norovirus asymptomatic infection people with specific lifestyles or medical histories. SUMMARYThe detection follow-up rates of norovirus were 2.7% and 5.6% among asymptomatic adults with positive- and negative-norovirus status at baseline, respectively. Specific lifestyles or medical histories may confer higher risk of norovirus detection.
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Affiliation(s)
- Daiki Kobayashi
- Division of General Internal Medicine, Department of Medicine, Tokyo Medical University Ibaraki Medical Center, Ibaraki, Japan.,Fujita Health University, Toyoake, Japan.,Department of General Medicine, Juntendo University, Faculty of Medicine, Tokyo, Japan.,Division of General Internal Medicine, Department of Medicine, St Lukes International Hospital, Tokyo, Japan
| | - Kyoko Yokota
- Department of Integrated Medicine, Kagawa Prefectural Central Hospital, Takamatsu, Japan
| | | | - Mayuko Saito
- Department of Virology, Tohoku University Graduate School of Medicine, Sendai, Japan
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Evaluating the Diagnostic Accuracy of Rapid Immuno-chromatographic Tests for Early Detection of Rotavirus in Fecal Samples from Children Less than Five Years with Acute Watery Diarrhea. JOURNAL OF PURE AND APPLIED MICROBIOLOGY 2022. [DOI: 10.22207/jpam.16.3.31] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Acute diarrheal illness is a serious public health issue in developing and developed economies, with high morbidity and mortality rates. Children below five years are the most vulnerable, with one in every six dying from diarrhea. Diarrhea may be caused by various viruses, protozoa, and bacteria. Rotavirus, in particular, is often associated with diarrhea in children. Early detection of rotavirus infection reduces the need for medication and the spread of the virus and helps determine the optimal treatment strategies. In this study, we compared the efficacy of the rapid immunochromatography technique (ICT) with that of enzyme-linked immunosorbent assay (ELISA) to detect rotavirus antigens in stool samples. Overall, 361 stool samples were obtained from hospitalized children under five-years-old, with acute watery diarrhea symptoms and were tested by both rapid ICT and ELISA. Among these samples, 104 (28.81%) tested positive by ICT and 109 (30.19%) by ELISA. Furthermore, the specificity and sensitivity of ICT were assessed using ELISA, the gold standard test. ICT had a 95.41% sensitivity and a 100% specificity. Thus, during emergency testing, ICT may be utilized as an alternative test for quick diagnosis with high specificity and sensitivity in patients with rotavirus diarrhea.
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Delafosse D, Reinert L, Azaïs P, Fontvieille D, Soneda Y, Morand P, Duclaux L. Potentialities of a mesoporous activated carbon as virus detection probe in aquatic systems. J Virol Methods 2022; 303:114496. [PMID: 35181346 DOI: 10.1016/j.jviromet.2022.114496] [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: 01/03/2022] [Revised: 02/11/2022] [Accepted: 02/13/2022] [Indexed: 11/30/2022]
Abstract
Enteric viruses are widely spread in water environments, some being harmful for human communities. Regular epidemics highlight the usefulness of analysing such viruses in wastewaters as a tool for epidemiologists to monitor the extent of their dissemination among populations. In this context, CNovel™ Powdered Activated Carbon (PAC) was chosen for its high porosity and high adsorption capacity to investigate sorbent ability to be used as part of of virus detection probes. Self-supported PAC Foils (PAC-F), PAC coated Brushes (PAC-B) and PAC Sampler (PAC-S) were used to prospect PAC efficacy in virus adsorption and above all, the feasibility of virus retrieval from them, allowing to further analysis such as molecular analysis quantification. Aiming at the development of a field-operational tool, PAC saturation and reusability were also investigated, as well as PAC-polarisation effect on its adsorption capacity. Our results pointed out that sorbent-based probes exhibited a high adsorption efficacy of spiked Murine Norovirus (MNV-1) in bare 0.1 M NaCl solution (>90 % for PAC-B and >86 % for PAC-F at ≈107 genome unit virus concentration), with no saturation within our experimental framework. On the other hand, polarisation assays using PAC-F as electrode, did not demonstrate any adsorption improvement. Experiments on PAC probes reusability suggested that they should be used three times at the most for a maximum efficiency. Values of virus retrieval were low (up to 11 % with PAC-B and up to 14 % with PAC-F in 0.1 M NaCl virus suspensions), illustrating the need for the techniques to be improved. A preliminary field assay using PAC-S, demonstrated that our catch-and-retrieve protocol yielded to the detection of autochthonous human Norovirus Genogroup I (NoV GI) and Adenovirus (AdV), in wastewaters suggesting its promising application as virus detection tool in such high loaded and complex waters.
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Affiliation(s)
- Doriane Delafosse
- Laboratoire Abiolab-Asposan, Montbonnot-Saint-Martin, France; Université Grenoble Alpes, CNRS, CEA, Institut de biologie structurale (IBS), Grenoble, France.
| | | | | | | | - Yasushi Soneda
- National Institute of Advanced Industrial Science and Technology (AIST), Energy Process Research Institute, Tsukuba, Ibaraki, 305-8569, Japan
| | - Patrice Morand
- Université Grenoble Alpes, CNRS, CEA, Institut de biologie structurale (IBS), Grenoble, France
| | - Laurent Duclaux
- Université Savoie Mont Blanc, EDYTEM, F-73000, Chambéry, France
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Thwiny HT, Alsalih NJ, Saeed ZF, Al-Yasari AMR, Al-Saadawe MAA, Alsaadawi MAE. Prevalence and seasonal pattern of enteric viruses among hospitalized children with acute gastroenteritis in Samawah, Iraq. J Med Life 2022; 15:52-57. [PMID: 35186136 PMCID: PMC8852632 DOI: 10.25122/jml-2021-0158] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Accepted: 10/27/2021] [Indexed: 11/09/2022] Open
Abstract
Almost all of the deaths happening under the age of 5 occur in the developed countries of Africa and Asia. This study included children admitted to the surgical care, aged 6 months to 5 years, who suffered from acute gastroenteritis and received treatment at Samawah, Iraq, from December 2018 to December 2019. Test results detected different types of rotaviruses, adenoviruses, astroviruses using ELISA. 56.6% of the infections were attributed to a viral pathogen. The main cause was attributed to rotavirus and adenovirus. The causative agents of diarrheal diseases in 28.1% of cases are rotaviruses, in 17.05% – adenoviruses, in 11.43% – astroviruses. Viral mono-infections are detected more often than mixed infections. Viral intestinal infections are characterized by seasonality and rise in the cold season, with a peak incidence of rotavirus infection in April, adenovirus infection in November, and astrovirus infection in December.
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Affiliation(s)
| | - Nawar Jasim Alsalih
- Division of Microbiology, College of Veterinary Medicine, Al-Muthanna University, Samawah, Iraq
| | - Zeayd Fadhil Saeed
- Nursing Department, Al Furat Al Awsat Technical University, Samawah, Iraq
| | | | | | - Mohenned Abd ElHussein Alsaadawi
- Department of Parasitology, College of Veterinary Medicine, Al-Muthanna University, Samawah, Iraq,Corresponding Author: Mohenned Abd ElHussein Alsaadawi, Department of Parasitology, College of Veterinary Medicine, Al-Muthanna University, Samawah, Iraq. E-mail:
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Lin FJ, Huang YC, Huang YC, Huang LM, Liu CC, Chi H, Lin HC, Ho YH, Wu FT, Mu JJ, Hsiung CA, Huang CY, Shih SM. Clinical and epidemiological features in hospitalized young children with acute gastroenteritis in Taiwan: A multicentered surveillance through 2014-2017. J Formos Med Assoc 2021; 121:519-528. [PMID: 34167879 DOI: 10.1016/j.jfma.2021.06.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 05/20/2021] [Accepted: 06/01/2021] [Indexed: 01/05/2023] Open
Abstract
BACKGROUND/PURPOSE Acute gastroenteritis (AGE) remains a significant health issue in children. The worldwide evolution of pediatric AGE pathogens had been recorded since the introduction of rotavirus vaccine. Ten years after the rotavirus vaccine was introduced to the private sectors in Taiwan, a nationwide study was conducted to elucidate the epidemiological changes among major AGE pathogens. METHODS From January 2014 to December 2017, children younger than 5 years old, hospitalized with AGE at 10 hospitals across Taiwan were enrolled. Stool specimens were tested for Salmonella spp., Campylobacter spp., Clostridiodes difficile, norovirus, and rotavirus by polymerase chain reaction (PCR). The epidemiological and clinical information was collected. RESULTS Enteric pathogen were detected in 1983 (42.2%) of 4700 subjects, with Salmonella spp. (12.5%) being the leading cause of AGE, followed by norovirus (11.2%), rotavirus (8.7%), C. difficile (4.2%), Campylobacter spp. (1.0%), and a mixture of at least 2 of 5 above-mentioned pathogens (4.6%). The case distributions varied across different regions. In eastern Taiwan, rotavirus (21/131, 16.0%) remained the most common pathogen detected. The rotavirus vaccine uptake rate is significantly lower in patients with rotavirus AGE. Besides, rotavirus AGE frequently occurred in children with foreign parent(s), Taiwanese indigenous people, and those with the household monthly income < NT$ 60,000. CONCLUSION Salmonella spp. and norovirus were two major pathogens of pediatric AGE in Taiwan during 2014-17. Providing low-to middle-income households with free rotavirus vaccine nationwide and an industry-led act to reduce salmonellosis should be considered by the authorities.
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Affiliation(s)
- Fang-Ju Lin
- Division of Infectious Diseases, Department of Pediatrics, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Yi-Chuan Huang
- Division of Infectious Diseases, Department of Pediatrics, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan.
| | - Yhu-Chering Huang
- Department of Pediatrics, Chang Gung Children's Hospital and Chang Gung University College of Medicine, Taoyuan, Taiwan
| | - Li-Min Huang
- Department of Pediatrics, National Taiwan University Hospital, Taipei, Taiwan
| | - Ching-Chuan Liu
- Department of Pediatrics, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Hsin Chi
- Department of Pediatrics, Mackay Children's Hospital, Mackay Medical College, Taipei, Taiwan
| | - Hsiao-Chuan Lin
- Department of Pediatrics, China Medical University Hospital, Taichung, Taiwan
| | - Yu-Huai Ho
- Division of Infectious Disease, Department of Internal Medicine, Buddhist Tzu Chi General Hospital, Hualien, Taiwan
| | - Fang-Tzy Wu
- Center for Diagnostics and Vaccine Development, Centers for Disease Control, Taiwan
| | - Jung-Jung Mu
- Center for Diagnostics and Vaccine Development, Centers for Disease Control, Taiwan
| | - Chao A Hsiung
- Institute of Population Health Sciences, National Health Research Institutes, Taiwan
| | - Ching-Yi Huang
- Institute of Population Health Sciences, National Health Research Institutes, Taiwan
| | - Shu-Man Shih
- Institute of Population Health Sciences, National Health Research Institutes, Taiwan
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Islam MR, Nuzhat S, Fahim SM, Palit P, Flannery RL, Kyle DJ, Mahfuz M, Islam MM, Sarker SA, Ahmed T. Antibiotic exposure among young infants suffering from diarrhoea in Bangladesh. J Paediatr Child Health 2021; 57:395-402. [PMID: 33107165 PMCID: PMC8048795 DOI: 10.1111/jpc.15233] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Revised: 09/20/2020] [Accepted: 10/01/2020] [Indexed: 11/15/2022]
Abstract
AIMS Appropriate rehydration has always been significant in treating diarrhoeal diseases in children. Irrational antibiotic use among diarrhoeal children has remained a major public health concern. Information regarding antibiotic use in young infants suffering from diarrhoea is very limited and a unique aspect of research. We aimed to investigate the prevalence of antibiotic use in the community among 2-6 months infants with diarrhoeal illnesses and having different nutritional status. METHODS We investigated a total of 5279 infants aged 2-6 months at Dhaka hospital, International Centre for Diarrhoeal Disease Research, Bangladesh, between September 2018 and June 2019. Among them, 257 infants were suffering from severe acute malnutrition (SAM). History of taking antibiotics was ascertained by direct observation of a prescription by a physician, the bottle of antibiotic or asking the caregiver about the name of antibiotic or its price that is very close to the usual market price of an antibiotic. RESULTS Overall, 52% of infants received antibiotics before hospital admission. Non-SAM infants had higher odds of receiving antibiotics (adjusted odds ratio [aOR] = 1.52, 95% confidence interval: 1.18, 1.97, P value = 0.003) compared to infants with SAM and use of antibiotics increased with age (aOR = 1.11, 95% confidence interval: 1.06, 1.17, P value<0.001). Commonly used antibiotics were azithromycin (13.3%), ciprofloxacin (7.7%), erythromycin (7.7%) and metronidazole (2.6%). The proportion of receiving ciprofloxacin was significantly lower in infants with SAM compared to their non-SAM counterparts (2.7% vs. 7.97%, P value = 0.004). CONCLUSIONS The study underscores the excessive use of antibiotics among diarrhoeal infants, which is already a major public health concern in low- and middle-income countries.
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Affiliation(s)
- Md Ridwan Islam
- Nutrition and Clinical Services DivisionInternational Centre for Diarrhoeal Disease Research, BangladeshDhakaBangladesh
| | - Sharika Nuzhat
- Nutrition and Clinical Services DivisionInternational Centre for Diarrhoeal Disease Research, BangladeshDhakaBangladesh
| | - Shah Mohammad Fahim
- Nutrition and Clinical Services DivisionInternational Centre for Diarrhoeal Disease Research, BangladeshDhakaBangladesh
| | - Parag Palit
- Nutrition and Clinical Services DivisionInternational Centre for Diarrhoeal Disease Research, BangladeshDhakaBangladesh
| | | | - David J Kyle
- Evolve BioSystems, Inc.DavisCaliforniaUnited States
| | - Mustafa Mahfuz
- Nutrition and Clinical Services DivisionInternational Centre for Diarrhoeal Disease Research, BangladeshDhakaBangladesh
| | - M Munirul Islam
- Nutrition and Clinical Services DivisionInternational Centre for Diarrhoeal Disease Research, BangladeshDhakaBangladesh
| | - Shafiqul Alam Sarker
- Nutrition and Clinical Services DivisionInternational Centre for Diarrhoeal Disease Research, BangladeshDhakaBangladesh
| | - Tahmeed Ahmed
- Nutrition and Clinical Services DivisionInternational Centre for Diarrhoeal Disease Research, BangladeshDhakaBangladesh
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Bathing Activities and Microbiological River Water Quality in the Paris Area: A Long-Term Perspective. THE HANDBOOK OF ENVIRONMENTAL CHEMISTRY 2020. [DOI: 10.1007/698_2019_397] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
AbstractThis chapter presents the historical aspects regarding swimming in rivers in the Paris region since the seventeenth century, including the concept of fecal contamination indicator bacteria (FIBs) developed at the very beginning of the twentieth century, and historical contamination data covering more than one century in the Paris agglomeration. The sources of microbiological contamination of river waters are quantified, showing the importance of rain events. The present contamination levels are presented with reference to the European Directive for bathing water quality. FIB levels show that the sufficient quality for bathing is not reached yet in any of the monitored stations. A comprehensive data set regarding waterborne pathogens (viruses, Giardia, Cryptosporidium) in the Seine and Marne rivers is presented as a necessary complement to the regulatory FIB data to better evaluate health risks. The last section concludes on the actions to be conducted to improve the rivers’ microbiological quality in the coming years.
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Abstract
Viral gastroenteritis (VGE) is an acute, self-limiting gastrointestinal infection caused by several viruses which most often trigger nausea, vomiting, abdominal pain and diarrhea. It is one of the most common human illnesses with its greatest impact on the very young and elderly. In the developing world, VGE can be life threatening whereas in most developed countries, it is self-limited and managed with hydration. Most agents of VGE are spread by the fecal oral route or may occur in explosive outbreaks due to food or water contamination. Control of these infections depends upon proper food handling, hand hygiene, clean water and the rotavirus vaccination of infants. This chapter will discuss the common viruses which cause this syndrome.
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Falman JC, Fagnant-Sperati CS, Kossik AL, Boyle DS, Meschke JS. Evaluation of Secondary Concentration Methods for Poliovirus Detection in Wastewater. FOOD AND ENVIRONMENTAL VIROLOGY 2019; 11:20-31. [PMID: 30612304 PMCID: PMC6394643 DOI: 10.1007/s12560-018-09364-y] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Accepted: 12/31/2018] [Indexed: 05/18/2023]
Abstract
Effective surveillance of human enteric viruses is critical to estimate disease prevalence within a community and can be a vital supplement to clinical surveillance. This study sought to evaluate simple, effective, and inexpensive secondary concentration methods for use with ViroCap™ filter eluate for environmental surveillance of poliovirus. Wastewater was primary concentrated using cartridge ViroCap filters, seeded with poliovirus type 1 (PV1), and then concentrated using five secondary concentration methods (beef extract-Celite, ViroCap flat disc filter, InnovaPrep® Concentrating Pipette, polyethylene glycol [PEG]/sodium chloride [NaCl] precipitation, and skimmed-milk flocculation). PV1 was enumerated in secondary concentrates by plaque assay on BGMK cells. Of the five tested methods, PEG/NaCl precipitation and skimmed-milk flocculation resulted in the highest PV1 recoveries. Optimization of the skimmed-milk flocculation method resulted in a greater PV1 recovery (106 ± 24.8%) when compared to PEG/NaCl precipitation (59.5 ± 19.4%) (p = 0.004, t-test). The high PV1 recovery, short processing time, low reagent cost, no required refrigeration, and requirement for only standard laboratory equipment suggest that the skimmed-milk flocculation method would be a good candidate to be field-validated for secondary concentration of environmental ViroCap filter samples containing poliovirus.
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Affiliation(s)
- Jill C Falman
- Department of Environmental & Occupational Health Sciences, University of Washington, 4225 Roosevelt Way NE, Suite 100, Seattle, WA, 98195, USA
| | - Christine S Fagnant-Sperati
- Department of Environmental & Occupational Health Sciences, University of Washington, 4225 Roosevelt Way NE, Suite 100, Seattle, WA, 98195, USA
| | - Alexandra L Kossik
- Department of Environmental & Occupational Health Sciences, University of Washington, 4225 Roosevelt Way NE, Suite 100, Seattle, WA, 98195, USA
| | - David S Boyle
- PATH, 2201 Westlake Avenue, Suite 200, Seattle, WA, 98121, USA
| | - John Scott Meschke
- Department of Environmental & Occupational Health Sciences, University of Washington, 4225 Roosevelt Way NE, Suite 100, Seattle, WA, 98195, USA.
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12
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Bányai K, Estes MK, Martella V, Parashar UD. Viral gastroenteritis. Lancet 2018; 392:175-186. [PMID: 30025810 PMCID: PMC8883799 DOI: 10.1016/s0140-6736(18)31128-0] [Citation(s) in RCA: 228] [Impact Index Per Article: 38.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Revised: 05/09/2018] [Accepted: 05/15/2018] [Indexed: 12/20/2022]
Abstract
Enteric viruses, particularly rotaviruses and noroviruses, are a leading cause of gastroenteritis worldwide. Rotaviruses primarily affect young children, accounting for almost 40% of hospital admissions for diarrhoea and 200 000 deaths worldwide, with the majority of deaths occurring in developing countries. Two vaccines against rotavirus were licensed in 2006 and have been implemented in 95 countries as of April, 2018. Data from eight high-income and middle-income countries showed a 49-89% decline in rotavirus-associated hospital admissions and a 17-55% decline in all-cause gastroenteritis-associated hospital admissions among children younger than 5 years, within 2 years of vaccine introduction. Noroviruses affect people of all ages, and are a leading cause of foodborne disease and outbreaks of gastroenteritis worldwide. Prevention of norovirus infection relies on frequent hand hygiene, limiting contact with people who are infected with the virus, and disinfection of contaminated environmental surfaces. Norovirus vaccine candidates are in clinical trials; whether vaccines will provide durable protection against the range of genetically and antigenically diverse norovirus strains remains unknown. Treatment of viral gastroenteritis is based primarily on replacement of fluid and electrolytes.
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Affiliation(s)
- Krisztián Bányai
- Institute for Veterinary Medical Research, Centre for Agricultural Research, Hungarian Academy of Sciences, Budapest, Hungary.
| | - Mary K Estes
- Department of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, TX, USA
| | - Vito Martella
- Department of Veterinary Medicine, University Aldo Moro of Bari, Provincial Road to Casamassima, Valenzano, Italy
| | - Umesh D Parashar
- Viral Gastroenteritis Branch, Division of Viral Diseases, Centers for Disease Control and Prevention, Atlanta, GA, USA
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13
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Lee KT, Kim S, Chong MS. Epidemiological Study on Acute Diarrheal Disease of Children and Adolescents in the Jeju Region Using a Multiplex-PCR. KOREAN JOURNAL OF CLINICAL LABORATORY SCIENCE 2017. [DOI: 10.15324/kjcls.2017.49.2.141] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Affiliation(s)
- Kyu-taeg Lee
- Department of Laboratory Medicine, Cheju Halla General Hospital, Jeju, Korea
| | - Sunmi Kim
- Department of infection Control Service Team, Cheju Halla General Hospital, Jeju, Korea
| | - Moo Sang Chong
- Department of Clinical Pathology, Cheju Halla University, Jeju, Korea
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14
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Gastañaduy AS, Bégué RE. Acute Gastroenteritis Viruses. Infect Dis (Lond) 2017. [PMCID: PMC7173516 DOI: 10.1016/b978-0-7020-6285-8.00162-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Acute diarrhea is the leading cause of morbidity and second commonest cause of mortality in children <5 years old worldwide. Most acute diarrheal illnesses are caused by viruses. Noroviruses are the commonest cause of diarrhea in all age groups combined, and rotaviruses are still the leading cause of diarrhea for children <5 years old. Transmission is mainly by the fecal–oral route through person-to-person contact, contaminated food and water. Most cases of viral diarrhea are mild and self-limiting, but severe cases occur, leading to dehydration and death. Repeated episodes lead to malnutrition. Most cases can be managed at home with oral rehydration solutions and feeding a regular diet. Vaccines will be the best preventive measure. Only rotavirus vaccines are available. Breast-feeding, vitamin A supplementation and zinc significantly reduce the frequency and/or severity of diarrhea.
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15
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Pathogen-induced secretory diarrhea and its prevention. Eur J Clin Microbiol Infect Dis 2016; 35:1721-1739. [DOI: 10.1007/s10096-016-2726-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2016] [Accepted: 07/05/2016] [Indexed: 12/19/2022]
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16
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Khoshdel A, Parvin N, Doosti A, Famouri F. Prevalence of Nosocomial Diarrhea Due to Adenoviruses 40 and 41 in a Paediatric Ward in Iran. JOURNAL OF CLINICAL AND DIAGNOSTIC RESEARCH : JCDR 2016; 9:SC15-7. [PMID: 26816963 DOI: 10.7860/jcdr/2015/15353.6976] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 06/24/2015] [Accepted: 10/06/2015] [Indexed: 01/29/2023]
Abstract
BACKGROUND Enteric adenoviruses 40 (Ad40) and adenovirus 41 (Ad41) have been shown to be a significant cause of paediatric gastroenteritis worldwide, but no data are available for nosocomial diarrhea due to adenovirus in Iran. AIM The present study was performed to determine the incidence of Ad40 and Ad41 in children less than five years with nosocomial diarrhea in Shahrekord, southwest Iran. MATERIALS AND METHODS Adenovirus was detected by polymerase chain reaction (PCR) in stool samples collected during one year (2010-2011) from children less than five years with nosocomial diarrhea admitted to a paediatric center in Shahrekord, Iran. Nosocomial diarrhea was defined as those occurring more than 72 hours after admission to hospital for non-diarrheal causes. PCR technique was used for investigation of Ad40 and Ad41. RESULTS In total of 100 samples, Ad40 and Ad41 DNA was found to be positive in 14/100 (14%), and 8/100 (8%) of diarrheic patients less than five years, respectively. CONCLUSION Ad40 and Ad41 are important causes of nosocomial diarrhea in less than five-year, hospitalized Iranian children.
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Affiliation(s)
- Abolfazl Khoshdel
- Associate Professor, Department of Pediatrics, Shahrekord University of Medical Sciences , Shahrekord, Iran
| | - Neda Parvin
- Lecturer, Department of Nursing, Shahrekord University of Medical Sciences , Shahrekord, Iran
| | - Abbas Doosti
- Assistant Professor, Department of Genetics, Islamic Azad University Shahrekord Branch , Shahrekord, Iran
| | - Fatemeh Famouri
- Assistant Professor, Department of Pediatrics, Isfahan University of Medical Sciences , Isfahan, Iran
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17
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Sanaei Dashti A, Ghahremani P, Hashempoor T, Karimi A. Molecular Epidemiology of Enteric Adenovirus Gastroenteritis in under-Five-Year-Old Children in Iran. Gastroenterol Res Pract 2016; 2016:2045697. [PMID: 26880883 PMCID: PMC4736959 DOI: 10.1155/2016/2045697] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2015] [Revised: 10/25/2015] [Accepted: 10/26/2015] [Indexed: 11/18/2022] Open
Abstract
Background. Acute gastroenteritis is one of the major sources of morbidity and mortality among young children in developed and developing countries. The aim of this study was to determine the prevalence of human adenovirus- (HAdV-) 40 and HAdV-41 in children hospitalized with gastroenteritis in five different health centers of Iran. Methods. In a cross-sectional epidemiological study, we studied 2682 fecal specimens that were collected from children under the age of 5 years in five educational and therapeutic pediatric centers in Iran from February 2012 to February 2013. Samples were tested for HAdV-40 and HAdV-41, using a specific pair of primers in polymerase chain reaction (PCR) method. Results. HAdV-40 and HAdV-41 were detected in 132 (5.18%) of the patients with diarrhea. A significantly higher prevalence of HAdV-40 and HAdV-41 (58.3%) was observed in children under 12 months of age, compared to other age groups. The male to female ratio was 1.7. Conclusion. The results of this study demonstrated that HAdV-40 and HAdV-41 could be considered etiological agents for acute gastroenteritis among children in Iran. The PCR as a rapid test may increase the chance for a relatively mild course of the disease followed by a complete recovery and avoiding administration of unnecessary antibiotics.
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Affiliation(s)
- Anahita Sanaei Dashti
- Shiraz HIV/AIDS Research Center, Shiraz University of Medical Sciences, Shiraz 7193613311, Iran
| | - Pedram Ghahremani
- Pediatric Infectious Diseases Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Tayebeh Hashempoor
- Professor Alborzi Clinical Microbiology Research Center, Namazi Hospital, Shiraz University of Medical Sciences, Shiraz 7193613311, Iran
| | - Abdollah Karimi
- Pediatric Infectious Diseases Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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18
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Dhiman S, Devi B, Singh K, Devi P. Comparison of Enzyme-Linked Immunosorbent Assay and Immunochromatography for Rotavirus Detection in Children Below Five Years with Acute Gastroenteritis. J Clin Diagn Res 2015; 9:DC06-9. [PMID: 26500903 DOI: 10.7860/jcdr/2015/14049.6425] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2015] [Accepted: 06/26/2015] [Indexed: 11/24/2022]
Abstract
BACKGROUND Group-A rotaviruses are responsible for 30 to 60% of severe watery diarrhea cases in young children. Timely diagnosis of rotavirus infection helps to determine appropriate treatment and prevents unnecessary use of antibiotics. AIM To compare Immunochromatography (ICG) with standard ELISA test for diagnosis of and to determine incidence, clinical socio-epidemiological profile and possible risk factors associated with rotavirus infection in children below five years with acute gastroenteritis. SETTINGS AND DESIGN A prospective study performed from February 2013 to April 2014 in Microbiology and Paediatrics Departments, Government Medical College, Amritsar, Punjab, India. MATERIALS AND METHODS Hundred stool samples from children below five years diagnosed with acute gastroenteritis were taken and tested by ICG and standard ELISA test. STATISTICAL ANALYSIS Performed using the SPSS software for Windows, version 17.0. P-values calculated using χ(2) test for categorical variables. A p < 0.05 was considered significant. RESULTS Maximum cases with ICG showed a sensitivity of 95.24% and specificity of 97.47% when compared to ELISA. Incidence of rotavirus diarrhea was 21% using ELISA and 23% using ICG. With ELISA rotavirus infection was highest in age group 6 months to 24 months (83.3%) and in male (90.47%). The infection was maximum during November to April and presented with triad of diarrhea, vomiting, fever (76.2%). Majority of cases had watery diarrhea in high percentage (90.47%). Severe dehydration (76.19%), respiratory symptoms (38.09%), bottle feeding (52.38%), malnourished children (47.61%), children playing with toys (47.6%) and submersible water pump (61.95%) as a source of drinking water associated with rotavirus infection were found to statistically significant. CONCLUSION ICG shows a good agreement with ELISA and has the advantage of being a quicker, cost-effective and useful for testing single specimen, convenient, not requiring additional equipment, readily available, simple to perform and easy-to-read results.
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Affiliation(s)
- Shaveta Dhiman
- Junior Resident-III, Department of Microbiology, Government Medical College , Amritsar, India
| | - Bimla Devi
- Professor, Department of Microbiology, Government Medical College , Amritsar, India
| | - Karnail Singh
- Professor and Head, Department of Paediatrics, Government Medical College , Amritsar, India
| | - Pushpa Devi
- Professor and Head, Department of Microbiology, Government Medical College , Amritsar, India
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19
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Brown IS, Bettington A, Bettington M, Rosty C. Self-limited coeliac-like enteropathy: a series of 18 cases highlighting another coeliac disease mimic. Histopathology 2015; 68:254-61. [DOI: 10.1111/his.12752] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2015] [Accepted: 05/31/2015] [Indexed: 01/04/2023]
Affiliation(s)
- Ian S Brown
- Envoi Specialist Pathologists; Herston Qld Australia
- Anatomical Pathology; Pathology Queensland; Royal Brisbane and Women's Hospital; Herston Qld Australia
| | | | - Mark Bettington
- Envoi Specialist Pathologists; Herston Qld Australia
- The Conjoint Gastroenterology Laboratory; Queensland Institute of Medical Research; Bancroft Centre; Herston Qld Australia
- School of Medicine; University of Queensland; Herston Qld Australia
| | - Christophe Rosty
- Envoi Specialist Pathologists; Herston Qld Australia
- School of Medicine; University of Queensland; Herston Qld Australia
- Cancer and Population Studies Group; Queensland Institute of Medical Research; Bancroft Centre; Herston Qld Australia
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20
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Prevost B, Lucas FS, Goncalves A, Richard F, Moulin L, Wurtzer S. Large scale survey of enteric viruses in river and waste water underlines the health status of the local population. ENVIRONMENT INTERNATIONAL 2015; 79:42-50. [PMID: 25795193 DOI: 10.1016/j.envint.2015.03.004] [Citation(s) in RCA: 109] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2014] [Revised: 01/20/2015] [Accepted: 03/03/2015] [Indexed: 05/18/2023]
Abstract
Although enteric viruses constitute a major cause of acute waterborne diseases worldwide, environmental data about occurrence and viral load of enteric viruses in water are not often available. In this study, enteric viruses (i.e., adenovirus, aichivirus, astrovirus, cosavirus, enterovirus, hepatitis A and E viruses, norovirus of genogroups I and II, rotavirus A and salivirus) were monitored in the Seine River and the origin of contamination was untangled. A total of 275 water samples were collected, twice a month for one year, from the river Seine, its tributaries and the major WWTP effluents in the Paris agglomeration. All water samples were negative for hepatitis A and E viruses. AdV, NVGI, NVGII and RV-A were the most prevalent and abundant populations in all water samples. The viral load and the detection frequency increased significantly between the samples collected the most upstream and the most downstream of the Paris urban area. The calculated viral fluxes demonstrated clearly the measurable impact of WWTP effluents on the viral contamination of the Seine River. The viral load was seasonal for almost all enteric viruses, in accordance with the gastroenteritis recordings provided by the French medical authorities. These results implied the existence of a close relationship between the health status of inhabitants and the viral contamination of WWTP effluents and consequently surface water contamination. Subsequently, the regular analysis of wastewater could serve as a proxy for the monitoring of the human viruses circulating in both a population and surface water.
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Affiliation(s)
- B Prevost
- LEESU (UMR MA 102, Université Paris-Est, Agro ParisTech), Université Paris-Est Créteil, 61, Avenue du Général-de-Gaulle, 94010 Créteil cedex, France
| | - F S Lucas
- LEESU (UMR MA 102, Université Paris-Est, Agro ParisTech), Université Paris-Est Créteil, 61, Avenue du Général-de-Gaulle, 94010 Créteil cedex, France
| | - A Goncalves
- SIAAP, Direction du développement et de la prospective, 82, Avenue Kléber, 92700 Colombes, France
| | - F Richard
- SIAAP, Direction du développement et de la prospective, 82, Avenue Kléber, 92700 Colombes, France
| | - L Moulin
- Eau de Paris, DRDQE, R&D biologie, 33, Avenue Jean Jaurès, 94200 Ivry sur Seinze, France.
| | - S Wurtzer
- Eau de Paris, DRDQE, R&D biologie, 33, Avenue Jean Jaurès, 94200 Ivry sur Seinze, France
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21
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Paul A, Gladstone BP, Mukhopadhya I, Kang G. Rotavirus infections in a community based cohort in Vellore, India. Vaccine 2015; 32 Suppl 1:A49-54. [PMID: 25091680 DOI: 10.1016/j.vaccine.2014.03.039] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
INTRODUCTION The burden of infection in communities determines the spread of rotavirus infection and disease in susceptible populations. This study reports rotavirus infection and disease in a community based birth cohort in Vellore. METHODS Bimonthly surveillance and diarrheal stool were collected from 452 children enrolled at birth, of whom 373 completed three years of follow up. Samples were screened for rotavirus by an ELISA and genotyped by reverse transcription polymerase chain reaction for VP7 and VP4 genes. Rotavirus incidence rates were calculated using Poisson regression equations. Risk factors associated with symptomatic and asymptomatic rotavirus infections were compared using multiple logistic regression. RESULTS A total of 1149 episodes of rotavirus infections occurred in 94.4% children in the cohort. Incidence of rotavirus infection was 1.04 (0.97-1.1) per child-year with 0.75 asymptomatic and 0.29 symptomatic infections per child-year. About 18% of the children were infected in the first month, mainly with the G10P[11] strain. Rotavirus infections were more prevalent during October-March, but seasonality was not as marked in rotavirus disease. Rotavirus was associated with 15.1% of mild diarrhea, 38.9% of moderate/severe diarrhea and 66.7% of very severe diarrhea. Four common G types - G1 (26.8%), G2 (16%), G10 (11.2%) and G9 (9.6%) were seen, with high rates of mixed infections and untypable samples. Male gender, presence of siblings and low maternal education were associated with rotavirus disease. CONCLUSION This study demonstrates that rotavirus is the most common cause of gastroenteritis in the community, and indicates that since rotavirus caused the greatest proportion of moderate and severe disease, targeted interventions such as vaccines are needed for rotavirus, in addition to health education, sanitation and appropriate treatment to decrease diarrheal disease in communities.
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Affiliation(s)
- Anu Paul
- Department of Gastrointestinal Sciences, Christian Medical College, Vellore, India
| | - Beryl P Gladstone
- Department of Gastrointestinal Sciences, Christian Medical College, Vellore, India
| | - Indrani Mukhopadhya
- Department of Gastrointestinal Sciences, Christian Medical College, Vellore, India
| | - Gagandeep Kang
- Department of Gastrointestinal Sciences, Christian Medical College, Vellore, India.
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Abstract
Norovirus, an RNA virus of the family Caliciviridae, is a human enteric pathogen that causes substantial morbidity across both health care and community settings. Several factors enhance the transmissibility of norovirus, including the small inoculum required to produce infection (<100 viral particles), prolonged viral shedding, and its ability to survive in the environment. In this review, we describe the basic virology and immunology of noroviruses, the clinical disease resulting from infection and its diagnosis and management, as well as host and pathogen factors that complicate vaccine development. Additionally, we discuss overall epidemiology, infection control strategies, and global reporting efforts aimed at controlling this worldwide cause of acute gastroenteritis. Prompt implementation of infection control measures remains the mainstay of norovirus outbreak management.
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Affiliation(s)
- Elizabeth Robilotti
- Department of Medicine, Division of Infectious Diseases and Geographic Medicine, Stanford University School of Medicine, Stanford, California, USA
| | - Stan Deresinski
- Department of Medicine, Division of Infectious Diseases and Geographic Medicine, Stanford University School of Medicine, Stanford, California, USA
| | - Benjamin A Pinsky
- Department of Medicine, Division of Infectious Diseases and Geographic Medicine, Stanford University School of Medicine, Stanford, California, USA Department of Pathology, Stanford University School of Medicine, Stanford, California, USA
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Abstract
Acute gastroenteritis is among the most common illnesses of human beings, and its associated morbidity and mortality are greatest among those at the extremes of age; children and elderly. During the 1970s, several viruses were associated with this syndrome, which are now known to be caused mainly by viruses belonging to four distinct families—rotaviruses, caliciviruses, astroviruses, and adenoviruses. Other viruses, such as the toroviruses, picobirnaviruses, coronavirus, and enterovirus 22, may play a role as well. Transmission by food or water has been documented for astroviruses, caliciviruses, rotaviruses, and norovirus. In developing countries, gastroenteritis is a common cause of death in children <5 years, while deaths from diarrhea are less common, much illness leads to hospitalization or doctor visits. Laboratory confirmation of waterborne illness is based on demonstration of virus particles or antigen in stool, detection of viral nucleic acid in stool, or demonstration of a rise in specific antibody to the virus. Newer methods for syndrome surveillance of acute viral gastroenteritis are being developed like multiplex real-time reverse transcriptase PCRs. Application of these more sensitive methods to detect and characterize individual agents is just beginning, but has already opened up new avenues to reassess their disease burden, examine their molecular epidemiology, and consider new directions for their prevention and control through vaccination, improvements in water quality, and sanitary practices.
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Affiliation(s)
- Prati Pal Singh
- Center of Infectious Diseases, National Institute of Pharmaceutical Education and Research, Mohali, Punjab India
| | - Vinod Sharma
- The National Academy of Sciences, Allahabad, India
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Lee RM, Lessler J, Lee RA, Rudolph KE, Reich NG, Perl TM, Cummings DAT. Incubation periods of viral gastroenteritis: a systematic review. BMC Infect Dis 2013; 13:446. [PMID: 24066865 PMCID: PMC3849296 DOI: 10.1186/1471-2334-13-446] [Citation(s) in RCA: 106] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2013] [Accepted: 09/12/2013] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND Accurate knowledge of incubation period is important to investigate and to control infectious diseases and their transmission, however statements of incubation period in the literature are often uncited, inconsistent, and/or not evidence based. METHODS In a systematic review of the literature on five enteric viruses of public health importance, we found 256 articles with incubation period estimates, including 33 with data for pooled analysis. RESULTS We fit a log-normal distribution to pooled data and found the median incubation period to be 4.5 days (95% CI 3.9-5.2 days) for astrovirus, 1.2 days (95% CI 1.1-1.2 days) for norovirus genogroups I and II, 1.7 days (95% CI 1.5-1.8 days) for sapovirus, and 2.0 days (95% CI 1.4-2.4 days) for rotavirus. CONCLUSIONS Our estimates combine published data and provide sufficient quantitative detail to allow for these estimates to be used in a wide range of clinical and modeling applications. This can translate into improved prevention and control efforts in settings with transmission or the risk of transmission.
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Affiliation(s)
- Rachel M Lee
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, USA
| | - Justin Lessler
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, USA
| | - Rose A Lee
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, USA
| | - Kara E Rudolph
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, USA
| | - Nicholas G Reich
- Division of Biostatistics and Epidemiology, School of Public Health and Health Sciences, University of Massachusettes Amherst, Amherst, USA
| | - Trish M Perl
- Department of Medicine, Division of Infectious Diseases, Johns Hopkins University School of Medicine, Baltimore, USA
| | - Derek AT Cummings
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, USA
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25
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Abstract
BACKGROUND Acute diarrhea is a leading cause of childhood morbidity and mortality worldwide, but there have been few reports on the causative viruses associated with acute diarrhea among outpatient children in developing countries. This study was conducted to identify the viral agents in outpatient children with acute diarrhea in southeastern China. METHODS Eight hundred eleven outpatient children 5 years or younger with acute diarrhea were enrolled. Five enteric viruses were determined by enzyme-linked immunosorbent assay and multiplex reverse transcription-polymerase chain reaction for each stool specimen. RESULTS At least 1 virus was detected in 353 (43.5%) of the subjects. The proportions of rotavirus, norovirus, sapovirus, adenovirus and astrovirus were 25.5%, 18.1%, 4.4%, 2.7% and 1.2%, respectively. G3P[8] was the most prevalent rotavirus strain. Mixed infections were observed in 65 cases, among which the most prevalent coinfection was rotavirus with other viruses (58 cases, 89.2%). Rotavirus and norovirus infections showed marked and opposing seasonal patterns. Mixed infection was significantly more common in children older than 1 year (12.2%) than in those younger than 1 year (7.1%) (P = 0.026). Clinically, rotavirus infection presented with a longer duration (4.3 ± 6.7 days) and higher frequency (5.9 ± 2.0 times/d) of diarrhea than any other viral infection. Vomiting was more common for mixed infections than for single infections (P = 0.010). CONCLUSIONS All the 5 common etiologies were detected in this study, with rotavirus and norovirus being the 2 leading agents. Mixed viral infections were common in outpatient children with acute diarrhea, and rotavirus seemed to play a major role in mixed infections.
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26
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Mori K, Hayashi Y, Akiba T, Nagano M, Tanaka T, Hosaka M, Nakama A, Kai A, Saito K, Shirasawa H. Multiplex real-time PCR assays for the detection of group C rotavirus, astrovirus, and Subgenus F adenovirus in stool specimens. J Virol Methods 2012; 191:141-7. [PMID: 23159674 DOI: 10.1016/j.jviromet.2012.10.019] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2012] [Revised: 10/24/2012] [Accepted: 10/30/2012] [Indexed: 11/17/2022]
Abstract
Group C rotavirus (GCRV), astrovirus (AstV), and adenovirus (subgenus F AdenoV) are etiologic agents of acute nonbacterial gastroenteritis, which often represents community outbreaks. For the efficient detection of GCRV, AstV, and subgenus F AdenoV in stool specimens, a multiplex real-time PCR assay was developed to detect these three viruses simultaneously, with high sensitivity and specificity. In total, 8404 clinical specimens were collected between April 2008 and March 2011 and tested for GCRV, AstV, and subgenus F AdenoV by the multiplex real-time PCR, as well as for norovirus (NoV), sapovirus (SaV), and group A rotavirus (GARV) by non-multiplex real-time PCR. Forty-one specimens were positive for GCRV, AstV, or subgenus F AdenoV, including 15 specimens that were also positive for NoV, SaV, or GARV. Multiple viruses were detected simultaneously in 29 out of 4596 (0.63%) specimens infected with at least one virus. The association rates of AstV and subgenus F AdenoV with other viruses were significantly higher than those of NoV, SaV, GARV, or GCRV.
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Affiliation(s)
- Kohji Mori
- Department of Microbiology, Tokyo Metropolitan Institute of Public Health, Tokyo 169-0073, Japan.
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Abstract
A preliminary investigation was conducted to screen for astrovirus in Lagos. Two hundred and fifteen (215) faecal samples collected from children under 5 years old with diarrhoea (161) and without diarrhoea (54) admitted at paediatric clinics in Lagos State were studied. The stool specimens were examined for the presence of human astrovirus antigen using a monoclonal antibody-based ELISA (Astrovirus RIDASCREEN(®) r-Biopharm, Germany) technique. Astrovirus was detected in 40.4 percent (65/161) of the diarrhoeal stools compared to 11.1 percent (6/54) of the control specimens. Astrovirus was found to infect younger children and about three quarter of the children infected was under 12 months of age. The prevalence of infection decreases with age group and was statistically significant (P = 0.0470). Although, prevalence of infection is more in males than females but this is not significant. This study shows that astrovirus is an important agent of acute gastroenteritis among children in Lagos state.
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Affiliation(s)
- Ci Ayolabi
- Dept. of Microbiology, University of Lagos, Nigeria
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Yezli S, Otter JA. Minimum Infective Dose of the Major Human Respiratory and Enteric Viruses Transmitted Through Food and the Environment. FOOD AND ENVIRONMENTAL VIROLOGY 2011; 3:1-30. [PMID: 35255645 PMCID: PMC7090536 DOI: 10.1007/s12560-011-9056-7] [Citation(s) in RCA: 111] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2011] [Accepted: 02/26/2011] [Indexed: 05/18/2023]
Abstract
Viruses are a significant cause of morbidity and mortality around the world. Determining the minimum dose of virus particles that can initiate infection, termed the minimum infective dose (MID), is important for the development of risk assessment models in the fields of food and water treatment and the implementation of appropriate infection control strategies in healthcare settings. Both respiratory and enteric viruses can be shed at high titers from infected individuals even when the infection is asymptomatic. Presence of pre-existing antibodies has been shown to affect the infectious dose and to be protective against reinfection for many, but not all viruses. Most respiratory viruses appear to be as infective in humans as in tissue culture. Doses of <1 TCID50 of influenza virus, rhinovirus, and adenovirus were reported to infect 50% of the tested population. Similarly, low doses of the enteric viruses, norovirus, rotavirus, echovirus, poliovirus, and hepatitis A virus, caused infection in at least some of the volunteers tested. A number of factors may influence viruses' infectivity in experimentally infected human volunteers. These include host and pathogen factors as well as the experimental methodology. As a result, the reported infective doses of human viruses have to be interpreted with caution.
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Affiliation(s)
- Saber Yezli
- Bioquell UK Ltd, 52 Royce Close, West Portway, Andover, Hampshire, SP10 3TS, UK.
| | - Jonathan A Otter
- Bioquell UK Ltd, 52 Royce Close, West Portway, Andover, Hampshire, SP10 3TS, UK
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Infectious Diarrhea. PEDIATRIC GASTROINTESTINAL AND LIVER DISEASE 2011. [PMCID: PMC7151906 DOI: 10.1016/b978-1-4377-0774-8.10039-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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30
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Gastañaduy AS, Bégué RE. Acute gastroenteritis viruses. Infect Dis (Lond) 2010. [PMCID: PMC7173416 DOI: 10.1016/b978-0-323-04579-7.00151-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
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31
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Gallelli L, Colosimo M, Tolotta GA, Falcone D, Luberto L, Curto LS, Rende P, Mazzei F, Marigliano NM, De Sarro G, Cucchiara S. Prospective randomized double-blind trial of racecadotril compared with loperamide in elderly people with gastroenteritis living in nursing homes. Eur J Clin Pharmacol 2009; 66:137-44. [PMID: 19902197 DOI: 10.1007/s00228-009-0751-3] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2009] [Accepted: 10/18/2009] [Indexed: 11/24/2022]
Affiliation(s)
- Luca Gallelli
- School of Medicine and Surgery, Department of Experimental and Clinical Medicine, University Magna Graecia of Catanzaro, Mater Domini University Hospital, Catanzaro, Italy.
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Lan WT, Lee HC, Yeung CY, Jiang CB, Kao HA, Hung HY, Chiu NC. Concomitant rotavirus and Salmonella infections in children with acute diarrhea. Pediatr Neonatol 2009; 50:8-12. [PMID: 19326832 DOI: 10.1016/s1875-9572(09)60023-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
Abstract
BACKGROUND AND PURPOSE The incidence of concomitant rotavirus and Salmonella infection has been reported to be 1.3% to 7.4%. We designed this study to compare the clinical manifestations in children infected with rotavirus, Salmonella, or both. METHODS The medical records of admitted children with acute rotavirus or Salmonella gastroenteritis in 2001 were reviewed. They were divided into group R (rotavirus), group S (Salmonella) and group C (concomitant infection with both). The differences of clinical manifestations and laboratory data among the three groups were analyzed via chi-squared, analysis of variance (ANOVA), Bonferroni and Kruskal-Wallis tests, and odds ratios with 95% confidence intervals (95% CI). RESULTS Among the 895 cases reviewed, 550 were group R, 312 group S, and 33 (3.7%) group C. Group C had more vomiting compared with group S (p = 0.0017). Comparing with group R, group C had more prolonged and high fever (> or = 39 degrees C) (p < 0.05), more percentage of green coloration, with mucus and blood contained in the stool (p < 0.001). The C-reactive protein (CRP) value was significantly higher in group C (9.70 +/- 11.05 mg/dL) than in group R (1.33 +/- 3.62mg/dL) or S (5.22 +/- 6.11 mg/dL) (p < 0.05). Hypokalemia was found most frequently in group C (C: 30.0%, S: 8.8%, R: 7.3%) (p = 0.0026). CONCLUSION Concomitant rotavirus and Salmonella infections accounted for 3.7% of cases in this study. They had higher CRP as well as incidence of hypokalemia [corrected] In a child with rotavirus gastroenteritis, concomitant infection with Salmonella should be considered if the child has sustained a high fever (> or = 39 degrees C) for over 4 days and a green stool with mucus and blood.
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Affiliation(s)
- Wen-Tzong Lan
- Department of Pediatrics, Mackay Memorial Hospital, Taipei, Taiwan
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Pan Y, Lee A, Wan J, Coventry M, Michalski W, Shiell B, Roginski H. Antiviral properties of milk proteins and peptides. Int Dairy J 2006. [DOI: 10.1016/j.idairyj.2006.06.010] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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34
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Chen SM, Ni YH, Chen HL, Chang MH. Microbial Etiology of Acute Gastroenteritis in Hospitalized Children in Taiwan. J Formos Med Assoc 2006; 105:964-70. [PMID: 17185238 DOI: 10.1016/s0929-6646(09)60280-1] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND/PURPOSE Viral infections are the most common causes of acute infectious diarrhea in the pediatric population. To explore any possible microbial etiologies of acute gastroenteritis in children, we detected stool viral antigen including rotavirus, adenovirus, norovirus and astrovirus. We also studied the possible precipitating factors. METHODS During a period of 1 year (from October 2003 to September 2004), children from birth to 15 years old admitted to the pediatric ward were prospectively surveyed. Stool specimens were collected within 48 hours after admission and then frozen at -40 degrees C until analysis. Enzyme immunoassay was used to detect rotavirus, astrovirus, norovirus and adenovirus. Bacterial culture was performed at the same time. RESULTS During the study period, 82 stool samples were collected due to acute gastroenteritis and fit the definition of a diarrhea episode. Forty-two (51.2%) patients with viral infection, 11 (13.4%) with bacterial infection, and six (7.3%) with mixed viral and bacterial infection were detected. The most prevalent virus was rotavirus (35.4%), followed by norovirus (29.3%). The most prevalent cause of bacterial infection was Salmonella (19.5%). With regard to clinical severity, rotavirus resulted in longer hospital stay, higher rate of vomiting, stool occult blood, leukocytosis, lower rate in stool pus cell, and C-reactive protein elevation more than 5 mg/dL as compared with norovirus. Only the difference in hospital stay reached significant statistical difference. CONCLUSION Norovirus is an important cause of acute gastroenteritis in children, although rotavirus is still the leading cause of pediatric acute gastroenteritis.
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Affiliation(s)
- Shan-Ming Chen
- Department of Pediatrics, College of Medicine and Hospital, National Taiwan University, Chung Shan Medical University Hospital, Taipei, Taiwan
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35
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Nwachuku N, Gerba CP. Health risks of enteric viral infections in children. REVIEWS OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2006; 186:1-56. [PMID: 16676900 DOI: 10.1007/0-387-32883-1_1] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
Children are at a greater risk of infections from serious enteric viral illness than adults for a number of reasons. Most important is the immune system, which is needed to control the infection processes. This difference can lead to more serious infections than in adults, who have fully developed immune systems. There are a number of significant physiological and behavioral differences between adults and children that place children at a greater risk of exposure and a greater risk of serious infection from enteric viruses. Although most enteric viruses cause mild or asymptomatic infections, they can cause a wide range of serious and life-threatening illnesses in children. The peak incidence of most enteric viral illnesses is in children <2yr of age, although all age groups of children are affected. Most of these infections are more serious and result in higher mortality in children than adults. The fetus is also affected by enterovirus and infectious hepatitis resulting in significant risk of fetal death or serious illness. In addition to the poliovirus vaccine, the only vaccine available is for hepatitis A virus (HAV). A vaccine for rotavirus has currently been withdrawn, pending review because of potential adverse effects in infants. No specific treatment is available for the other enteric viruses. Enteric viral infections are very common in childhood. Most children are infected with rotavirus during the first 2yr of life. The incidence of enteroviruses and the viral enteric viruses ranges from 10% to 40% in children and is largely dependent on age. On average, half or more of the infections are asymptomatic. The incidence of hepatitis A virus is much lower than the enteric diarrheal viruses. There is no current evidence for hepatitis E virus (HEV) acquisition in children in the U.S. Enteric viral diseases have a major impact on direct and indirect health care costs (i.e., lost wages) and amount to several billion dollars a year in the U.S. Total direct and indirect costs for nonhospitalized cases may run from $88/case for Norwalk virus to $1,193/case for enterovirus aseptic meningitis. Direct costs of hospitalization ran from $887/case for Norwalk virus to $86,899/case for hepatitis A. These costs are based on 1997-1999 data. Generally, attack rates during drinking water outbreaks are greater for children than adults. The exception appears to be hepatitis E virus where young adults are more affected. However, pregnant women suffer a high mortality, resulting in concurrent fetal death. Also, secondary attack rates are much higher among children, probably because of fewer sanitary habits among this age group. Overall, waterborne outbreaks of viral disease have a greater impact among children than adults. To better quantify the impact on children, the literature hould be further reviewed for case studies of waterborne outbreaks where data are available on the resulting illness by age group. The EPA and/or Centers for Disease Control should attempt to collect these data as future outbreaks are documented.
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Affiliation(s)
- Nena Nwachuku
- Office of Science and Technology, Office of Water, U.S. Environmental Protection Agency, 1200 Pennsylvania Ave. N.W., Mail Code 4304T, Washington, DC 20460, USA
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Morotti RA, Kaufman SS, Fishbein TM, Chatterjee NK, Fuschino ME, Morse DL, Magid MS. Calicivirus infection in pediatric small intestine transplant recipients: pathological considerations. Hum Pathol 2004; 35:1236-40. [PMID: 15492991 DOI: 10.1016/j.humpath.2004.06.013] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
Human calicivirus (HuCV), a common cause of mild gastroenteritis in the general population, produces a prolonged diarrheal illness in pediatric recipients of small intestinal transplant (IT). By use of reverse-transcription polymerase chain reaction to detect the viral RNA polymerase gene in stool and tissue from gastrointestinal biopsies, 5 pediatric IT recipients with high-volume diarrhea were diagnosed with HuCV enteritis. Histopathologic findings of biopsies obtained at different gastrointestinal sites were studied retrospectively to identify characteristic features of HuCV enteritis and to distinguish these changes from rejection. Controls were 8 pediatric IT recipients with high-volume diarrhea but negative HuCV reverse-transcription polymerase chain reaction assays during the same time period. All HuCV biopsies showed increased mononuclear infiltrates in the lamina propria and villous blunting. Reactive disarray of surface epithelial cells and increased apoptosis in the surface epithelium and superficial lamina propria were characteristic features (in 4/5 patients). Increased glandular apoptosis was also present in 3/5 patients. Findings were more pronounced in jejunal allograft than ileal allograft, and were present in both graft and native bowel. In comparison with the control group, the architectural changes, surface epithelial reactive changes, and superficial apoptosis were characteristic of HuCV enteritis, while the presence of glandular apoptosis was a feature shared with cases of mild acute cellular rejection HuCV may cause severe allograft dysfunction after pediatric IT. Calicivirus infection has clinical and histological features that overlap with allograft rejection. Knowledge of the characteristic histologic features of HuCV enteritis aids in differential diagnosis.
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Castilho JG, Botelho MVJ, Lauretti F, Taniwaki N, Linhares REC, Nozawa C. The in vitro cytopathology of a porcine and the simian (SA-11) strains of rotavirus. Mem Inst Oswaldo Cruz 2004; 99:313-7. [PMID: 15273806 DOI: 10.1590/s0074-02762004000300013] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Rotaviruses have been implicated as the major causal agents of acute diarrhoea in mammals and fowls. Experimental rotavirus infection have been associated to a series of sub-cellular pathologic alterations leading to cell lysis which may represent key functions in the pathogenesis of the diarrhoeic disease. The current work describes the cytopathic changes in cultured MA-104 cells infected by a simian (SA-11) and a porcine (1154) rotavirus strains. Trypan blue exclusion staining showed increased cell permeability after infection by both strains, as demonstrated by cell viability. This effect was confirmed by the leakage of infected cells evaluated by chromium release. Nuclear fragmentation was observed by acridine orange and Wright staining but specific DNA cleavage was not detected. Ultrastructural changes, such as chromatin condensation, cytoplasm vacuolisation, and loss of intercellular contact were shown in infected cells for both strains. In situ terminal deoxynucleotidyl transferase (Tunel) assay did not show positive result. In conclusion, we demonstrated that both strains of rotavirus induced necrosis as the major degenerative effect.
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Chatterjee NK, Moore DW, Monroe SS, Glass RI, Cambridge MJ, Kondracki SF, Morse DL. Molecular Epidemiology of Outbreaks of Viral Gastroenteritis in New York State, 1998–1999. Clin Infect Dis 2004; 38 Suppl 3:S303-10. [PMID: 15095203 DOI: 10.1086/381600] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
This investigation evaluated the role of Norwalk-like virus (NLV) and other viruses (rotavirus, enteric adenovirus, and enterovirus) in 11 outbreaks of acute nonbacterial gastroenteritis that occurred in multiple settings in a span of 18 months in New York State. To determine the etiology of illness, patients' stool specimens were analyzed with a combination of reverse-transcription polymerase chain reaction (RT-PCR) and nucleotide sequencing, cell culture, and ELISA diagnostic techniques. NLV was detected from all of these outbreaks, with an overall detection rate of 64% (51 of 79) for all specimens tested. Repeated attempts to isolate other viral pathogens were unsuccessful. Phylogenetic analysis of a subset of 27 specimens from these outbreaks showed the presence of both genogroup I and genogroup II NLVs. A spectrum of different nucleotide sequences were detected, demonstrating interoutbreak sequence variation and unrelated infections. NLV is a significant causative agent of diarrhea outbreaks in New York State.
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Abstract
Acute diarrhea is commonly caused by an infection. Severe acute diarrhea warrants immediate medical evaluation and hospitalization. Indications for stool studies include fever; bloody diarrhea; recent travel to an endemic area; recent antibiotics; immunosuppression; and occupational risks, such as food handlers. Noninfectious causes include inflammatory bowel disease, radiation enteritis, and intestinal ischemia. Management of severe acute diarrhea includes intravenous fluid rehydration and empiric antibiotics. Use of antidiarrheal agents is controversial when invasive pathogens are suspected.
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Affiliation(s)
- Julia I Gore
- Department of Medicine, University of Washington School of Medicine, Harborview Medical Center, 325 Ninth Avenue, Box 359773, Seattle, WA 98104, USA
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Gofti-Laroche L, Gratacap-Cavallier B, Demanse D, Genoulaz O, Seigneurin JM, Zmirou D. Are waterborne astrovirus implicated in acute digestive morbidity (E.MI.R.A. study)? J Clin Virol 2003; 27:74-82. [PMID: 12727532 DOI: 10.1016/s1386-6532(02)00130-0] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND With rotavirus and Norwalk-like viruses, astroviruses are now recognized as important etiologic agents of viral gastroenteritis in all age groups. However, astrovirus is neither routinely screened for in stool samples, nor in environmental samples, and data on the health impact of waterborne astrovirus are lacking. OBJECTIVES To assess the potential impact of astrovirus in drinking water on the incidence of acute digestive conditions (ADC) among a panel of volunteers. STUDY DESIGN The Epidemiology and MIcrobial Risk Assessment (E.MI.R.A.) study combined a daily epidemiological follow-up of digestive morbidity among a panel of 544 volunteers supplied by French public water systems, and a microbiological surveillance of drinking water. Cases of digestive morbidity were collected through weekly telephone calls. The bacterial, virological and parasitic quality of tap water was assessed monthly. Additional samples were collected if the incidence of ADC increased. The relationship between incidence of ADC during a 7-day period centered about the water sampling day and astrovirus RNA prevalence in drinking water was modeled by regression techniques, taking into account several confounders. RESULTS 12% (8/68) of the analyzed water samples were positive for astrovirus, and presence of astrovirus RNA was associated with a significant increased risk of ADC: RR=1.51 (95% CI=[1.17-1.94], P value=0.002). CONCLUSIONS This result suggests a role for waterborne astrovirus in the endemic level of digestive morbidity in the general population. Perhaps astrovirus is a candidate test target for viral surveillance of drinking water.
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Affiliation(s)
- L Gofti-Laroche
- Public Health Laboratory, Grenoble University Medical School, France.
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43
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Abstract
Acute gastroenteritis is one of the most common diseases in humans worldwide. Viruses are recognized as important causes of this disease, particularly in children. Since the Norwalk virus was identified as a cause of gastroenteritis, the number of viral agents associated with diarrheal disease in humans has steadily increased. Rotavirus is the most common cause of severe diarrhea in children under 5 years of age. Astrovirus, calicivirus and enteric adenovirus are also important etiologic agents of acute gastroenteritis. Other viruses, such as toroviruses, coronaviruses, picobirnaviruses and pestiviruses, are increasingly being identified as causative agents of diarrhea. In recent years, the availability of diagnostic tests, mainly immunoassays or molecular biology techniques, has increased our understanding of this group of viruses. The future development of a safe and highly effective vaccine against rotavirus could prevent, at least, cases of severe diarrhea and reduce mortality from this disease.
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Affiliation(s)
- I Wilhelmi
- Servicio de Microbiología, Instituto de Salud Carlos III, Sección de Virus Productores de Gastroenteritis, Madrid, Spain.
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Yamashita T, Sakae K. VI, 3. Molecular biology and epidemiology of Aichi virus and other diarrhoeogenic enteroviruses. PERSPECTIVES IN MEDICAL VIROLOGY 2003; 9:645-657. [PMID: 32336843 PMCID: PMC7172506 DOI: 10.1016/s0168-7069(03)09040-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
The virion of the Aichi virus contains a single-stranded RNA molecule as the genome. The homology of Aichi virus structural proteins (VP0, VP3, and VP1) with corresponding polypeptides of other picornaviruses varies between 19% and 32%. The epidemiology of the Aichi virus as a medically important pathogen has not been well defined. Stool samples from adult patients in six oyster-associated gastroenteritis outbreaks were examined for variation, based on their reactivity with a monoclonal antibody raised against the standard strain (A486/88) and on reverse transcription-polymerase chain reactions (RT-PCR) of three genomic regions. Antibody to the Aichi virus could be detected using a neutralization test and an enzyme-linked immunosorbent assay (ELISA). These methods were used for the identification of Aichi virus infection in paired serum samples. The chapter concludes with a discussion on other diarrheagenic enteroviruses.
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Chikhi-Brachet R, Bon F, Toubiana L, Pothier P, Nicolas JC, Flahault A, Kohli E. Virus diversity in a winter epidemic of acute diarrhea in France. J Clin Microbiol 2002; 40:4266-72. [PMID: 12409408 PMCID: PMC139722 DOI: 10.1128/jcm.40.11.4266-4272.2002] [Citation(s) in RCA: 78] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
In France, an epidemic peak of acute diarrhea is observed each winter. Previous results suggested a viral etiology for these winter epidemics. We investigated the role of enteric viruses in acute diarrhea and their molecular diversity. One hundred sixty-one patients with acute diarrhea and 45 healthy patients (controls) from the general population were given a standardized questionnaire between December 1998 and May 1999. Stool specimens were screened for group A and C rotaviruses, human caliciviruses, astroviruses, and adenovirus types 40 and 41 by reverse transcription-PCR and/or enzyme immunoassay. Virologic analysis was positive for 63 cases (39%). Caliciviruses and group A rotaviruses were the most frequent (19 and 17% of cases, respectively). Two control stool specimens were found positive for group A rotavirus, and one was found positive for astrovirus. Molecular characterization of the strains disclosed a cocirculation of P[8],G1, P[8],G4, and P[4],G2 rotaviruses; type 1, 2, 3, 4, and 8 astroviruses; and Sapporo-like and Norwalk-like human caliciviruses. These four types of viruses accounted for an attributable risk of acute diarrhea of 34.7% for the general population, under the assumption of a causal role of these viruses.
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Affiliation(s)
- Roxane Chikhi-Brachet
- Institut National de la Santé et de la Recherche Médicale Unité 444, Epidémiologie et Sciences de l'Information, Faculté de Médecine Saint-Antoine, 75571 Paris, France.
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Shaw C, Hampers L. Oral rehydration therapy in the acute care setting. PEDIATRIC CASE REVIEWS (PRINT) 2002; 2:180-8. [PMID: 12865680 DOI: 10.1097/00132584-200207000-00007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/21/2023]
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Van Niel CW, Feudtner C, Garrison MM, Christakis DA. Lactobacillus therapy for acute infectious diarrhea in children: a meta-analysis. Pediatrics 2002; 109:678-84. [PMID: 11927715 DOI: 10.1542/peds.109.4.678] [Citation(s) in RCA: 324] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
OBJECTIVE Childhood diarrhea accounts for substantial morbidity and mortality worldwide. Multiple studies in children have shown that Lactobacillus, administered orally, may have antidiarrheal properties. We conducted a meta-analysis of randomized, controlled studies to assess whether treatment with Lactobacillus improves clinical outcomes in children with acute infectious diarrhea. METHODS Studies were sought in bibliographic databases of traditional biomedical as well as complementary and alternative medicine literature published from 1966 to 2000. Search terms were "competitive inhibition," "diarrhea," "gastroenteritis," "Lactobacillus," "probiotic," "rotavirus," and "yog(h)urt." We included studies that were adequately randomized, blinded, controlled trials in which the treatment group received Lactobacillus and the control group received an adequate placebo and that reported clinical outcome measures of diarrhea intensity. These inclusion criteria were applied by blind review and consensus. The original search yielded 26 studies, 9 of which met the criteria. Multiple observers independently extracted study characteristics and clinical outcomes. Data sufficient to perform meta-analysis of the effect of Lactobacillus on diarrhea duration and diarrhea frequency on day 2 were contained in 7 and 3 of the included studies, respectively. RESULTS Summary point estimates indicate a reduction in diarrhea duration of 0.7 days (95% confidence interval: 0.3-1.2 days) and a reduction in diarrhea frequency of 1.6 stools on day 2 of treatment (95% confidence interval: 0.7-2.6 fewer stools) in the participants who received Lactobacillus compared with those who received placebo. Details of treatment protocols varied among the studies. A preplanned subanalysis suggests a dose-effect relationship. CONCLUSION The results of this meta-analysis suggest that Lactobacillus is safe and effective as a treatment for children with acute infectious diarrhea.
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Abstract
Lactoferrin (LF) is an iron binding glycoprotein that is present in several mucosal secretions. Many biological functions have been ascribed to LF. One of the functions of LF is the transport of metals, but LF is also an important component of the non-specific immune system, since LF has antimicrobial properties against bacteria, fungi and several viruses. This review gives an overview of the present knowledge about the antiviral activities and, when possible, the antiviral modes of action of this protein. Lactoferrin displays antiviral activity against both DNA- and RNA-viruses, including rotavirus, respiratory syncytial virus, herpes viruses and HIV. The antiviral effect of LF lies in the early phase of infection. Lactoferrin prevents entry of virus in the host cell, either by blocking cellular receptors, or by direct binding to the virus particles.
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Affiliation(s)
- B W van der Strate
- Department of Pharmacokinetics and Drug Delivery, Groningen University Institute for Drug Exploration (GUIDE), A. Deusinglaan 1, 9713 AV Groningen, The Netherlands.
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Barker J, Stevens D, Bloomfield SF. Spread and prevention of some common viral infections in community facilities and domestic homes. J Appl Microbiol 2001; 91:7-21. [PMID: 11442709 PMCID: PMC7166786 DOI: 10.1046/j.1365-2672.2001.01364.x] [Citation(s) in RCA: 126] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
- J Barker
- Pharmaceutical Sciences Institute, School of Life and Health Sciences, Aston University, Aston Triangle, Birmingham B4 7ET, UK.
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Richardson M, Elliman D, Maguire H, Simpson J, Nicoll A. Evidence base of incubation periods, periods of infectiousness and exclusion policies for the control of communicable diseases in schools and preschools. Pediatr Infect Dis J 2001; 20:380-91. [PMID: 11332662 DOI: 10.1097/00006454-200104000-00004] [Citation(s) in RCA: 81] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
BACKGROUND The optimal control of communicable diseases requires accurate information on incubation periods, periods of infectiousness and the effectiveness of exclusion. We collected the available evidence for a wide range of infections and infestations and produced evidence-based guidelines for their control in schools and preschools. METHODS A thorough MEDLINE literature search was conducted on the incubation period, period of infectiousness and effectiveness of exclusion for 41 infections. The quality of the information obtained was indicated by levels of evidence. The information was used to produce guidelines on exclusion, and the recommendations were graded according to the levels of evidence available. Grades A, B and C represented strongly, reasonably and poorly evidence-based recommendations, respectively. RESULTS The quality of data obtained was highly variable. Information on incubation periods was obtained for all 41 infections and was generally of good quality. Information on periods of infectiousness and effectiveness of exclusion was of a lesser quality and was found for only 11 and 4 conditions, respectively. There were 3 Grade A, 17 Grade B and 21 Grade C recommendations on exclusion. Examples of exclusion periods include: 5 days for chickenpox, measles, mumps, rubella, pertussis and scarlet fever; and 24 h from the cessation of diarrhea for most gastrointestinal diseases In contrast to existing guidelines exclusion was not recommended for school age children with hepatitis A. CONCLUSIONS We have been able to present the best available data on the incubation periods and periods of infectiousness of 41 childhood infections. It was possible to produce strongly or reasonably evidence-based guidelines on exclusion periods for approximately one-half of the infections.
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Affiliation(s)
- M Richardson
- Paediatric Infectious Diseases Unit, St George's Hospital, St George's Hospital Medical School, London, UK.
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