scholarly journals Point-of-care diagnosis and risk factors of infantile, rotavirus-associated diarrhoea in Calabar, Nigeria

2017 ◽  
Vol 6 (1) ◽  
Author(s):  
Samuel E. Nnukwu ◽  
Simon J. Utsalo ◽  
Olufunmilayo G. Oyero ◽  
Michel Ntemgwa ◽  
James A. Ayukekbong
Keyword(s):  
Risk Factors ◽  
Acute Gastroenteritis ◽  
Point Of Care ◽  
Significant Proportion ◽  
Control Group ◽  
Rotavirus Infection ◽  
Negative Results ◽  
Extraction Buffer ◽  
Stool Samples ◽  
Test Cassette

Background: Rotaviruses are the primary cause of acute gastroenteritis in young children worldwide and a significant proportion of these infections occur in Africa.Objectives: In the present study, we determined the prevalence and risk factors of rotavirus infection among children younger than age 5 years with or without diarrhoea in Calabar, Nigeria, using a rapid point-of-care test.Methods: Two hundred infants younger than age 5 years presenting with acute gastroenteritis and a control group of 200 infants without diarrhoea were tested for rotavirus. Each stool sample was homogenised in an extraction buffer and the supernatant added into the sample well of the Rida Quick rotavirus test cassette and allowed to run for 5 minutes at room temperature. When both the control band and test band were visible on the test cassette a positive result was recorded, whereas when only the control band was visible a negative results was recorded.Results: Rotavirus was detected in 25 (12.5%) of children with diarrhoea and in no children without diarrhoea. Our results demonstrated that children who were exclusively breast-fed by their mothers were not infected with rotavirus and that 92% of the infants infected with rotavirus experienced vomiting.Conclusion: These data demonstrate that asymptomatic rotavirus infection is rare and that rotavirus is commonly detected in stool samples of children suffering from diarrhoea with concomitant vomiting. Use of point-of-care rotavirus tests will enhance early diagnosis of rotavirus-associated diarrhoea and reduce irrational use of antibiotics.

scholarly journals Familial, Social and Environmental Risk Factors in Autism: A Case-Control Study

2015 ◽  
Vol 40 (3) ◽  
pp. 113-117 ◽  
Author(s):  
A Jahan ◽  
SZR Rezina Parvin ◽  
D Bugum
Keyword(s):  
Risk Factors ◽  
Environmental Risk ◽  
Case Control Study ◽  
Significant Proportion ◽  
Case Control ◽  
Delay Group ◽  
Environmental Risk Factors ◽  
Control Group ◽  
Autism Group ◽  
Control Study

This case-control study was done to identify the correlation between the familial, social and environmental risk factors and autism. This hospital and specialized centre based study done from January 2002 to November, 2004. Thirty two children from the autism group and 14 children from the control group were enrolled. Mean age were 3.75 yrs. and 2.83 yrs. respectively. Significant proportion of children were in the highest birth orders, 68.8% in autism and 78.6% in the control group. Full term children were 96.9% and 92.9% respectively. 53.1% children in the autism and 57.1% in the normal speech delay group were born by cesarean sections. Higher education of parents in autism group was statistically significant (p<0.05). Too much watching TV, inadequate opportunity to mix with peers and inadequate interactive relationship with the family members in the early childhood were significantly (p= 0.001) related to the development of autism.Bangladesh Med Res Counc Bull 2014; 40 (3): 113-117

scholarly journals Pneumococcal disease: a retrospective cohort study on associated factors and risk factors for mortality among hospitalised adults in Singapore

2019 ◽  
Author(s):  
Min Zhi Tay ◽  
Tyson Chan ◽  
Win Mar Kyaw ◽  
Angela Chow ◽  
Hanley J Ho
Keyword(s):  
Risk Factors ◽  
Pneumococcal Disease ◽  
Pneumococcal Vaccination ◽  
Tertiary Hospital ◽  
Admission Diagnosis ◽  
Control Group ◽  
Negatively Associated ◽  
Icu Admission ◽  
Negative Results ◽  
Risk Patients

Abstract Background: Streptococcus pneumoniae infections can lead to severe morbidity and mortality, especially in patients with invasive pneumococcal disease (IPD). This study assesses factors associated with pneumococcal disease, and risk factors for mortality among hospitalised adults in Singapore.Methods: Retrospective study of patients with pneumococcal disease, based on streptococcal urinary antigen testing and/or sterile site cultures positive for S. pneumoniae , admitted to a tertiary hospital from 2015-2017. IPD and non-IPD cases were compared against a control group of patients, admitted over the same period but with negative results for the abovementioned tests.Results: We identified 496 pneumococcal disease cases, of whom 92 (18.5%) had IPD. The mean age of cases was 69.1±15.4yrs, and 65.5% were male. Compared with controls (N=9,181), IPD patients were younger (mean age 61.5±16.3yrs, vs 72.2±16.1yrs in controls; p<0.001) and with less co-morbidities [median Charlson’s score 1 (IQR 0-4), vs 3 (1-5) in controls; p<0.001]. IPD patients also had the highest proportions with intensive care unit (ICU) admission (20.7%), inpatient mortality (26.1%) and longest median length of stay [9 (8-17) days]. On multivariate analysis, IPD was negatively associated with prior pneumococcal vaccination (adjusted odds ratio=0.20, 95%CI 0.06–0.69; p=0.011). Risk factors for mortality among pneumococcal disease patients were ICU admission, diagnosis of IPD, age ≥85yrs and Charlson’s score >3.Conclusion: Patients with pneumococcal disease (especially IPD) were younger and had less co-morbidities than controls, but had higher risk of severe clinical outcomes and mortality. Pneumococcal vaccination was negatively associated with IPD and should be encouraged among high-risk patients.

scholarly journals Introduction and prolonged circulation of G12 rotaviruses in Sicily

2016 ◽  
Vol 144 (9) ◽  
pp. 1943-1950 ◽  
Author(s):  
G. M. GIAMMANCO ◽  
F. BONURA ◽  
F. DI BERNARDO ◽  
A. CASCIO ◽  
G. FERRERA ◽  
...  
Keyword(s):  
Phylogenetic Analysis ◽  
Acute Gastroenteritis ◽  
Rotavirus Infection ◽  
Genetic Lineages ◽  
Stool Samples

SUMMARYGenotype G12 strains are now considered to be the sixth most prevalent human rotaviruses worldwide. In two Sicilian cities, Palermo and Messina, surveillance of rotavirus circulation performed since 1985 and 2009, respectively, did not detect G12 strains until 2012. From 2012 to 2014 rotavirus infection was detected in 29·7% of 1647 stool samples collected from children admitted for acute gastroenteritis to three Sicilian hospitals in Palermo, Messina and Ragusa. In 2012, G12P[8] was first detected in Palermo and then in Messina where it represented the second most frequent genotype (20% prevalence) after G1P[8]. Thereafter, G12 strains continued to circulate in Sicily, showing a marked prevalence in Ragusa (27·8%) in 2013 and in Palermo (21%) and Messina (16·6%) in 2014. All but one of the Sicilian G12 strains carried a P[8] VP4 genotype, whereas the single non-P[8] rotavirus strain was genotyped as G12P[9]. Phylogenetic analysis of the VP7 and VP4 sequences allowed distinction of several genetic lineages and separation of the G12P[8] strains into three cluster combinations. These findings indicate independent introductions of G12 rotavirus strains in Sicily in recent years.

Does Having Rotavirus Infection in Early Childhood Increase the Risk of Celiac Disease?

2021 ◽  
Author(s):  
Meryem Keceli Basaran ◽  
Caner Dogan ◽  
Mahmut Bal ◽  
Seda Geylani Gulec ◽  
Nafiye Urganci
Keyword(s):  
Risk Factors ◽  
Risk Factor ◽  
Celiac Disease ◽  
Genetic Factors ◽  
Pediatric Patients ◽  
Control Group ◽  
Rotavirus Infection ◽  
Rotavirus Gastroenteritis ◽  
Significant Difference ◽  
Espghan Guidelines

Abstract Objective With the increasing prevalence of celiac disease (CD) in the population, possible risk factors are under investigation. Environmental and genetic factors that trigger the immune response have been analyzed for many years. This study investigates the presence of CD in children with rotavirus infection. Rotavirus infection is thought to be a risk factor for CD. Methods Included in the study were 105 of 160 pediatric patients hospitalized due to symptomatic rotavirus infection between 2012 and 2018. These children were screened for CD 45.6 ± 18.2 (14–90) months following the rotavirus infection diagnosed with CD as per ESPGHAN guidelines. Results A total of 105 pediatric patients who had rotavirus gastroenteritis were included in the study. The age of the children with rotavirus infection was 3.98 ± 1 (2–6) months. In terms of CD, it was 45.6 ± 18.2 months. Around 14 to 90 months later, patients were called for control. CD developed in four (3.8%) of the children with rotavirus, whereas none of the children in the control group developed CD. Conclusion Rotavirus infection may be a risk factor for CD through immune mechanisms. There are genetic and various environmental factors for the development of CD. Although the CD's occurrence on children who had rotavirus gastroenteritis in our study also supported this situation, there was no statistically significant difference.

scholarly journals A Comparative Study of Rotaviral Antigen Detection by ELISA and ICT in Children below Five Years with Acute Diarrhoea in A Tertiary Care Hospital

2021 ◽  
Vol 49 (1) ◽  
pp. 14-18
Author(s):  
Farjana Binte Habib ◽  
Mohammed Mirazur Rahman ◽  
Md Moynul Haque ◽  
Shib Prasad Sinha ◽  
Suborna Dey ◽  
...  
Keyword(s):  
Rapid Detection ◽  
Tertiary Care ◽  
Significant Proportion ◽  
Antigen Detection ◽  
Watery Diarrhoea ◽  
Enzyme Linked Immunosorbent Assay ◽  
Care Hospital ◽  
Rotavirus Infection ◽  
Under Five ◽  
Stool Samples

Rotavirus is responsible for acute severe watery diarrhoea in young children. Early and rapid detection of rotavirus infection can help to reduce inappropriate administration of antibiotics and has future positive impact on prevention of drug resistance. This cross-sectional study was designed to determine the role of rotaviral antigen detection by ICT from stool sample of acute diarrhoeal children below five years admitted in Sylhet MAG Osmani Medical College Hospital, Sylhet and was carried out in the department of microbiology in collaboration with the department of paediatrics during the period from 1st January  to 31st December, 2018. Total 184 children of under five years of age with acute watery diarrhoea were enrolled in this study. Rotaviral antigen was detected by ELISA (Enzyme Linked Immunosorbent Assay) and ICT (Immunochromatographic test) from stool samples. Out of 184 stool samples, rotaviral antigen was found positive in 84 and 86 cases by ICT and ELISA methods, respectively. ICT showed sensitivity of 90.70% and specificity of 93.88% when compared with ELISA. The rotavirus infection was found highest in male children (61.90%) and in age group of 7 to 12 months (51.89%). Considering the importance of rotaviral diarrhoea, rapid detection of rotavirus infection by ICT is essentially needed and should be practiced routinely as it is relatively reliable, easy to perform and cost-effective. It is particularly important in Bangladesh, where diarrhoea is still contributing a significant proportion of mortality and morbidity in under five children. Bangladesh Med J. 2020 Jan; 49 (1): 14-18

scholarly journals Risk Factors of Early Stage Residual Back Pain After Percutaneous Kyphoplasty or Vertebroplasty: A Retrospective Study of 853 Patients

2021 ◽  
Author(s):  
Bo-bo Zhang ◽  
Yi-min Yang ◽  
Zhi-wei Ren ◽  
Wei-zhou Yang ◽  
Jin-tao Xiu ◽  
...  
Keyword(s):  
Risk Factors ◽  
Back Pain ◽  
Vertebral Fracture ◽  
Significant Proportion ◽  
Smoking History ◽  
Control Group ◽  
Fracture Type ◽  
Mineral Density ◽  
Fracture Location ◽  
Cement Distribution

Abstract Background: A small but significant proportion of patients experienced residual back pain after PVP or PKP treatment. The aim of the present study was to explore risk factors that may affect residual back pain after PKP or PVP. This study identified the risk factors of residual back pain after PKP or PVP, allowing proper intervention and improved clinical outcome.Methods: From January 2010 to January 2017, a total of 853 patients were treated by PVP or PKP at The First Affiliated Hospital of Xi’an Jiaotong University. We recorded the Visual Analog Scale (VAS) scores. Patients with a VAS score > 3 post-operatively and at the 1 month follow-up evaluation were grouped into the “residual back pain” group. The others were grouped into the control group. The following possible risk factors were collected: age; gender; weight; bone mineral density (BMD); surgical approach; surgical type; cement distribution; anesthesia; hypertension; diabetes; smoking; alcohol consumption; vertebral fracture type, and vertebral fracture location. Risk factors associated with residual back pain were evaluated using logistic regression analysis.Results: The incidence of residual back pain after PVP/PKP is 9.61%. Results showed that cement distribution, smoking, vertebral fracture type and vertebral fracture location were independently associated with residual back pain after PVP or PKP in the early post-operative stage. Conclusion: Unsatisfactory cement distribution, smoking history, osteogenic vertebral tumors, osteolytic vertebral tumors, and thoracic fractures were independently associated with residual back pain after PVP or PKP at the early post-operative stage.

scholarly journals High prevalence of circulating DS-1-like human rotavirus A and genotype diversity in children with acute gastroenteritis in Thailand from 2016 to 2019

PeerJ ◽  
2021 ◽  
Vol 9 ◽  
pp. e10954
Author(s):  
Siripat Pasittungkul ◽  
Fajar Budi Lestari ◽  
Jiratchaya Puenpa ◽  
Watchaporn Chuchaona ◽  
Nawarat Posuwan ◽  
...  
Keyword(s):  
Acute Gastroenteritis ◽  
Public Health Problem ◽  
Major Public Health Problem ◽  
Viral Gastroenteritis ◽  
Seasonal Incidence ◽  
Rotavirus Infection ◽  
Rotavirus A ◽  
Human Rotavirus ◽  
Genotype Diversity ◽  
Stool Samples

Background Human rotavirus A (RVA) infection is the primary cause of acute gastroenteritis (AGE) in infants and young children worldwide, especially in children under 5 years of age and is a major public health problem causing severe diarrhea in children in Thailand. This study aimed to investigate the prevalence, genotype diversity, and molecular characterization of rotavirus infection circulating in children under 15 years of age diagnosed with AGE in Thailand from January 2016 to December 2019. Methods A total of 2,001 stool samples were collected from children with gastroenteritis (neonates to children <15 years of age) and tested for RVA by real-time polymerase chain reaction (RT-PCR). Amplified products were sequenced and submitted to an online genotyping tool for analysis. Results Overall, 301 (15.0%) stool samples were positive for RVA. RVA occurred most frequently among children aged 0-24 months. The seasonal incidence of rotavirus infection occurred typically in Thailand during the winter months (December-March). The G3P[8] genotype was identified as the most prevalent genotype (33.2%, 100/301), followed by G8P[8] (10.6%, 32/301), G9P[8] (6.3%, 19/301), G2P[4] (6.0%, 18/301), and G1P[6] (5.3%, 16/301). Uncommon G and P combinations such as G9P[4], G2P[8], G3P[4] and G3P[9] were also detected at low frequencies. In terms of genetic backbone, the unusual DS-1-like G3P[8] was the most frequently detected (28.2%, 85/301), and the phylogenetic analysis demonstrated high nucleotide identity with unusual DS-1-like G3P[8] detected in Thailand and several countries. Conclusions A genetic association between RVA isolates from Thailand and other countries ought to be investigated given the local and global dissemination of rotavirus as it is crucial for controlling viral gastroenteritis, and implications for the national vaccination programs.

scholarly journals An outbreak of norovirus-related acute gastroenteritis associated with delivery food in Guangzhou, southern China

2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Ying Lu ◽  
Mengmeng Ma ◽  
Hui Wang ◽  
Dahu Wang ◽  
Chun Chen ◽  
...  
Keyword(s):  
Risk Factors ◽  
Acute Gastroenteritis ◽  
Southern China ◽  
Gastrointestinal Symptoms ◽  
Sudden Onset ◽  
Personal Hygiene ◽  
Control Group ◽  
Case Group ◽  
Food Handlers ◽  
Rectal Swabs

Abstract Background A large number of students at a school in Guangzhou city developed a sudden onset of symptoms of diarrhea and vomiting. To help control the outbreak, we conducted an epidemiological investigation to determine the causative agent, sources, role of transmission and risk factors of the infections. Methods The study population consisted of probable and confirmed cases. An active search was conducted for cases among all students, teachers and other school staff members. A case control study was carried out using standardized online questionnaires. Data were obtained regarding demographic characteristics, gastrointestinal symptoms, personal hygiene habits, history of contact with a person who had diarrhea and/or vomiting and dining locations during the past 3 days. Rectal swabs or stool samples of the cases and, food handlers, as well as environmental samples were collected to detect potential intestinal viruses and bacteria. We calculated odds ratios and 95% confidence intervals (CIs). Results A total of 157 individuals fit the definition of a probable case, including 46 with laboratory-confirmed norovirus infection between March 8 and March 22, 2018. The proportion of students who had eaten delivery food 3 days before the onset of illness in the case group was 2.69 times that in the control group (95%CI: 1.88–3.85). Intake of take-out food 3 days earlier, and exposure to similar cases 72 h before onset and case in the same dormitory were risk factors. A total of 20 rectal swab samples from students, 10 rectal swabs from food handlers and 2 environmental swab samples from the out-campus restauranttested positive for norovirus (GII, genogroup II strain). Conclusions We investigated an outbreak of norovirus infectious diarrhea. Food handling practices carry potential risk of acute gastroenteritis outbreaks owing to a lack of surveillance and supervision. Greater attention should be paid to the monitoring and supervision of food handlers in off campus restaurant to reduce the incidence of norovirus-related acute gastroenteritis associated with delivery food.

scholarly journals An outbreak of norovirus-related acute gastroenteritis associated with delivery food in Guangzhou, southern China

2019 ◽  
Author(s):  
Ying Lu ◽  
Mengmeng Ma ◽  
Hui Wang ◽  
Dahu Wang ◽  
Chun Chen ◽  
...  
Keyword(s):  
Risk Factors ◽  
Acute Gastroenteritis ◽  
Southern China ◽  
Gastrointestinal Symptoms ◽  
Sudden Onset ◽  
Personal Hygiene ◽  
Control Group ◽  
Case Group ◽  
Food Handlers ◽  
Rectal Swabs

Abstract Background A large number of students at a school located in Guangzhou city developed a sudden onset of symptoms of diarrhea and vomiting. In order to control the outbreak, an epidemiological investigation was conducted to determine the causative agent, sources, role of transmission and risk factors of the infections.Methods The study population consisted of probable cases and confirmed cases. An active search was conducted for cases among all students, teachers and other staff members. A case control study was carried out using online standardised questionnaires. Data were obtained regarding demographic characteristics, gastrointestinal symptoms, personal hygiene habits, history of contact with a person with diarrhea and/or vomiting and dining place in the past 3 days. Rectal swabs or stool samples of the cases, food handlers and environmental smear swab samples were collected to detect potential intestinal viruses and bacteria. Odds ratios (ORs) and 95% confidence intervals were calculated. Results A total of 157 individuals fit the definition of a probable case, including 46 with laboratory-confirmed norovirus infection between March 8 and March 22, 2018. The proportion of the students who had eaten delivery food three days before the onset of disease in the case group was 2.69 times that in the control group (95%CI: 1.88-3.85). Intake of take-out food three days before, exposure to similar cases 72 hours before onset and case in the same dormitory were risk factors. A total of 20 rectal swab samples from students, 10 rectal swabs from food handlers and 2 environmental swab samples of out-campus restaurant were tested positive for norovirus (GⅡ, genogroup Ⅱ strain ). Conclusions The outbreak of norovirus infectious diarrhea was determined. Food handling practices carries potential risk of acute gastroenteritis outbreaks due to a lack of surveillance and supervision. More attention should be paid to the monitoring and supervision of food handlers to reduce the incidence of norovirus-related acute gastroenteritis associated with delivery food.

scholarly journals An outbreak of norovirus-related acute gastroenteritis associated with delivery food in Guangzhou, southern China

2019 ◽  
Author(s):  
Ying Lu ◽  
Mengmeng Ma ◽  
Hui Wang ◽  
Dahu Wang ◽  
Chun Chen ◽  
...  
Keyword(s):  
Risk Factors ◽  
Acute Gastroenteritis ◽  
Southern China ◽  
Gastrointestinal Symptoms ◽  
Sudden Onset ◽  
Personal Hygiene ◽  
Control Group ◽  
Case Group ◽  
Food Handlers ◽  
Rectal Swabs

Abstract Background A large number of students at a school located in Guangzhou city developed a sudden onset of symptoms of diarrhea and vomiting. In order to control the outbreak, an epidemiological investigation was conducted to determine the causative agent, sources, role of transmission and risk factors of the infections. Methods The study population consisted of probable cases and confirmed cases. An active search was conducted for cases among all students, teachers and other staff members. A case control study was carried out using online standardised questionnaires. Data were obtained regarding demographic characteristics, gastrointestinal symptoms, personal hygiene habits, history of contact with a person with diarrhea and/or vomiting and dining place in the past 3 days. Rectal swabs or stool samples of the cases, food handlers and environmental smear swab samples were collected to detect potential intestinal viruses and bacteria. Odds ratios (ORs) and 95% confidence intervals were calculated. Results A total of 157 individuals fit the definition of a probable case, including 46 with laboratory-confirmed norovirus infection between March 8 and March 22, 2018. The proportion of the students who had eaten delivery food three days before the onset of disease in the case group was 2.69 times that in the control group (95% CI: 1.88-3.85 ). Intake of take-out food three days before, exposure to similar cases 72 hours before onset and case in the same dormitory were risk factors. A total of 20 rectal swab samples from students, 10 rectal swabs from food handlers and 2 environmental swab samples of out-campus restaurant were tested positive for norovirus (G Ⅱ , genogroup Ⅱ strain ). Conclusions The outbreak of norovirus infectious diarrhea was determined. Food handling practices carries potential risk of acute gastroenteritis outbreaks due to a lack of surveillance and supervision. More attention should be paid to the monitoring and supervision of food handlers to reduce the incidence of norovirus-related acute gastroenteritis associated with delivery food.

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