scholarly journals Prevalence and seroepidemiology of Haemophilus parasuis in Sichuan province, China

2017 ◽  
Author(s):  
Zhenghao Wang ◽  
Qin Zhao ◽  
Hailin Wei ◽  
Xintian Wen ◽  
Sanjie Cao ◽  
...  
Keyword(s):  
Multiplex Pcr ◽  
Geographical Distribution ◽  
Causative Agent ◽  
Clinical Symptoms ◽  
Age Groups ◽  
Sichuan Province ◽  
Haemophilus Parasuis ◽  
Agar Gel ◽  
Infection Incidence ◽  
Gel Diffusion

Haemophilus parasuis, the causative agent of Glässer’s disease, has been reported widely, but seldom is known about its epidemiology in Sichuan province, China. The objective was to reveal the prevalence and distribution of H.parasuis in the area. Widely sampling and isolation was performed initially and following serotyping multiplex PCR (serotyping-mPCR) combined with agar gel diffusion (GD) was subjected to these strains. From January 2014 to May 2016, 254 H.parasuis field strains were isolated from 576 pigs with clinical symptoms, for the frequence of 44.10%. Statistically significant differences of infection incidence were found in three age groups and seasons. Serovars 5(25.98%) and 4(23.62%) were the most prevalent and non-typeable isolates accounted for 7.87%. In geographical distribution, serovars 5 and 4 were prepotent in both major two parts of Sichuan province. The results confirmed the compound approach was dependable and revealed the diversity and distribution of serovars in Sichuan province, which was promising to know relevant vaccinal candidates and further prevention.

scholarly journals Prevalence and seroepidemiology of Haemophilus parasuis in Sichuan province, China

2017 ◽  
Author(s):  
Zhenghao Wang ◽  
Qin Zhao ◽  
Hailin Wei ◽  
Xintian Wen ◽  
Sanjie Cao ◽  
...  
Keyword(s):  
Multiplex Pcr ◽  
Geographical Distribution ◽  
Causative Agent ◽  
Clinical Symptoms ◽  
Age Groups ◽  
Sichuan Province ◽  
Haemophilus Parasuis ◽  
Agar Gel ◽  
Infection Incidence ◽  
Gel Diffusion

Haemophilus parasuis, the causative agent of Glässer’s disease, has been reported widely, but seldom is known about its epidemiology in Sichuan province, China. The objective was to reveal the prevalence and distribution of H.parasuis in the area. Widely sampling and isolation was performed initially and following serotyping multiplex PCR (serotyping-mPCR) combined with agar gel diffusion (GD) was subjected to these strains. From January 2014 to May 2016, 254 H.parasuis field strains were isolated from 576 pigs with clinical symptoms, for the frequence of 44.10%. Statistically significant differences of infection incidence were found in three age groups and seasons. Serovars 5(25.98%) and 4(23.62%) were the most prevalent and non-typeable isolates accounted for 7.87%. In geographical distribution, serovars 5 and 4 were prepotent in both major two parts of Sichuan province. The results confirmed the compound approach was dependable and revealed the diversity and distribution of serovars in Sichuan province, which was promising to know relevant vaccinal candidates and further prevention.

scholarly journals Prevalence and seroepidemiology ofHaemophilus parasuisin Sichuan province, China

PeerJ ◽  
2017 ◽  
Vol 5 ◽  
pp. e3379 ◽  
Author(s):  
Zhenghao Wang ◽  
Qin Zhao ◽  
Hailin Wei ◽  
Xintian Wen ◽  
Sanjie Cao ◽  
...  
Keyword(s):  
Clinical Symptoms ◽  
Age Groups ◽  
Sichuan Province ◽  
Clinical Samples ◽  
Haemophilus Parasuis ◽  
Agar Gel ◽  
Isolation Frequency ◽  
Area Sampling ◽  
Different Seasons ◽  
Gel Diffusion

Haemophilus parasuis, the causative agent of Glässer’s disease, has been reported as widespread, but little is known about its epidemiology in the Sichuan province of China. The goal of our research is to reveal the prevalence and distribution ofH. parasuisin this area. Sampling and isolation were performed across Sichuan; isolates were processed using serotyping multiplex PCR (serotyping-mPCR) and agar gel diffusion (AGD) for confirmation of serovar identity. This study was carried out from January 2014 to May 2016 and 254H. parasuisfield strains were isolated from 576 clinical samples collected from pigs displaying clinical symptoms. The isolation frequency was 44.10%. Statistically very significant differences of infection incidence were found in three age groups (P < 0.01) and different seasons (P < 0.01). Serovars 5 (25.98%) and 4 (23.62%) were the most prevalent, however, non-typeable isolates accounted for nearly 7.87%. In terms of geographical distribution, serovars 5 and 4 were mostly prevalent in west and east Sichuan. The results confirmed that the combined approach was dependable and revealed the diversity and distribution of serovars in Sichuan province, which is vital for efforts aimed at developing vaccine candidates allowing for the prevention or control ofH. parasuisoutbreaks.

scholarly journals Prevalence of selected viral infections in various age groups of village chickens in Borno State, Nigeria

2021 ◽  
Vol 29 (2) ◽  
pp. 245-250
Author(s):  
A. D. El-Yuguda ◽  
S. S. Baba
Keyword(s):  
Viral Infections ◽  
Haemagglutination Inhibition ◽  
Age Groups ◽  
Point Of View ◽  
Preliminary Survey ◽  
Diffusion Test ◽  
Agar Gel ◽  
Village Chickens ◽  
Bursal Disease ◽  
Gel Diffusion

A preliminary survey for antibodies against some selected viruses in village chickens of various age groups was carried out in Borno State, Nigeria. Three hundred and twenty samples consisting of 160 sera from adult chickens, 60 sera from chicks and 100 yolk samples from embryonated en eggs were tested against Newcastle disease (ND), influenza (FLU) A and B viruses, and egg drop syndrome (EDS) - 76 viruses using haemagglutination inhibition (HI) test; and infectious bursal disease (IBD) virus using the agar gel diffusion test (AGDT). Eighty-five percent of the samples tested positive to one or more viruses, with IBD having the highest percentage prevalence (45.7%) followed by FLU A (26.5%), ND (22.4%), EDS-76 (19.3%) and FLU B (0%). The percentage of mixed infectious among different age groups was highest among chicks. The importance of village chickens in the spread and maintenance of viral diseases of poultry are discussed from an epidemiological point of view. 

Investigation of Children with Acute Gastroenteritis by Multiplex PCR Method in Central Part of Turkey

2022 ◽  
Author(s):  
Fatih Yılmaz ◽  
Havva Kaya ◽  
Mehmet Özdemir
Keyword(s):  
Multiplex Pcr ◽  
Acute Gastroenteritis ◽  
Hospital Admissions ◽  
Age Groups ◽  
Viral Gastroenteritis ◽  
Viral Agent ◽  
Mortality And Morbidity ◽  
Stool Samples ◽  
Pcr Method ◽  
Norovirus Gii

Abstract Objective Gastroenteritis is a disease that affects all age groups, especially children, and causes high mortality and morbidity in all countries. The most common agents of acute gastroenteritis are viral agents. As a result, millions of diarrhea attacks and hospital admissions occur worldwide every year due to viral gastroenteritis. This study uses the multiplex polymerase chain reaction (PCR) method to investigate the viruses that are the causative agents of viral gastroenteritis in the pediatric patient group in Konya, Turkey. Methods Stool samples of 94 patients aged 0 to 18 years sent from Emergency clinics and Pediatric outpatient clinics, Meram Medical Faculty Hospital Pediatric clinics, Konya Necmettin Erbakan University to Medical Microbiology Laboratory with a diagnosis of gastroenteritis between February and December 2018 were included in the study. Stool samples were stored at –80°C until the time of the analysis. Deoxyribonucleic acid/ribonucleic acid isolation from stool samples was performed with EZ1 Virus Mini Kit v2.0 (Qiagen, Hilden, Germany) using an automatic extraction system (BioRobot EZ1 system, Qiagen). The presence of astrovirus, rotavirus, adenovirus, norovirus (GI, GII), and sapovirus agents was investigated by the multiplex PCR method (Fast Track Diagnostics, Luxembourg) viral gastroenteritis kit. Results Viral gastroenteritis agents were detected in 56.3% of the patients. One viral agent was detected in 47 (50%) of these patients and at least two viral agents in 6 (6.3%) of them. Norovirus GII was detected in 20 (21.2%) of the children included in the study, adenovirus in 13 (13.8%), rotavirus in 11 (12.8%), astrovirus in 11 (11.7%), sapovirus in 4 (4.2%), and norovirus GI in 1 (1.06%). When the distribution of viral agents was examined by months, the most number of agents were observed (21; 35%) in May, followed by April and June (12; 20%). Considering the distribution of the prevalence of the agents by age, it was seen to be mainly between 0 and 12 months (42%). Conclusion Considering that the most common viral agent in our region is norovirus GII, it will be useful to investigate the norovirus that is not routinely examined in children who are admitted to clinics with the complaint of gastroenteritis. It will be appropriate to examine routinely adenovirus, rotavirus, and norovirus in the laboratory, especially in children with diarrhea and vomiting in the winter and spring months.

scholarly journals The Molecular Epidemiology and Clinical Phylogenetics of Rhinoviruses among Paediatric Cases in Sydney, Australia.

2020 ◽  
Author(s):  
Dillon Adam ◽  
Xin Chen ◽  
Matthew Scotch ◽  
C. Raina MacIntyre ◽  
Dominic Dwyer ◽  
...  
Keyword(s):  
Disease Severity ◽  
Respiratory Tract Infections ◽  
Clinical Symptoms ◽  
Age Groups ◽  
Epidemiological Evidence ◽  
Treatment Practices ◽  
Phylogenetic Methods ◽  
Significant Burden ◽  
Tract Infections ◽  
Sydney Australia

Background Rhinoviruses (RV) represent the most common aetiological agent of all acute respiratory tract infections across all age groups and a significant burden of disease among children. Recent studies have shown that RV-A and RV-C species are associated with varying degrees of disease severity and clinical symptoms. Methods In this study, we uncovered potential associations between RV species and subtypes, and clinical disease severity using a matched dataset of 52 RV isolates sampled from children (<18 years) in Sydney, Australia between 2006 and 2009 using epidemiological and phylogenetic methods. Results We found that RV-C was significantly more likely to be isolated from paediatric cases under two years of age compared to RV-A, although no significant differences in recorded symptoms were observed. Significant phylogenetic-trait associations between age and the VP4/VP2 capsid protein phylogeny suggests age-specific variations in infectivity among subtypes might also be possible. Conclusions This study adds to the growing body of epidemiological evidence concerning RV. Improving surveillance and testing for RV, including routine whole genome sequencing may improve our understanding of the varied diseashe outcomes of RV species and subtypes. Future studies could aim to identify specific genetic markers associated with age-specific infectivity of RV which could inform treatment practices and public health surveillance of RV.

scholarly journals Current aspects of epidemiology, clinic and diagnosis of campylobacteriosis

2001 ◽  
Vol 82 (6) ◽  
pp. 446-450
Author(s):  
S. V. Khaliullina ◽  
V. A. Anokhin
Keyword(s):  
Causative Agent ◽  
Age Groups ◽  
Epidemiological Studies ◽  
Domestic Animals ◽  
Point Of View ◽  
The Past ◽  
Foreign Literature ◽  
Medical Terms ◽  
Intestinal Infections ◽  
Veterinary Pathology

The problem of campylobacteriosis (CB) has been widely covered in the national and foreign literature over the past 10-20 years. Probably, the interest to this topic is due to a number of reasons. From a microbiological point of view, the causative agent of CB was discovered relatively recently and is an actively studied microorganism. At the same time, the responsibility of the microbe for the development of diseases in domestic animals and birds brings it into the category of problems of veterinary pathology. In medical terms, CB, taking into account modern epidemiological studies, is attributed to the group of the most common bacterial intestinal infections in children of different age groups, since it causes from 5 to 44.9% of all cases of the disease.

A Longitudinal Study of Atlanto-Dens Relationships in Asymptomatic Individuals with Down Syndrome

PEDIATRICS ◽  
1992 ◽  
Vol 89 (6) ◽  
pp. 1194-1198 ◽  
Author(s):  
Siegfried M. Pueschel ◽  
Francis H. Scola ◽  
John C. Pezzullo
Keyword(s):  
Down Syndrome ◽  
Clinical Symptoms ◽  
Age Groups ◽  
Atlantoaxial Instability ◽  
History Of ◽  
Child Development Center ◽  
Asymptomatic Individuals ◽  
Development Center ◽  
Over Time

This study was designed to investigate the natural history of atlantoaxial instability in individuals with Down syndrome and to determine whether significant changes in C1-C2 relationship are taking place over time. Although more than 400 patients with Down syndrome who are presently followed at the Child Development Center had cervical spine radiographic examinations in the past, only 141 patients who had serial radiological examinations and whose radiographs were available for reevaluation participated in this study. The results of our investigations revealed that there were only minor changes (1 to 1.5 mm) of atlanto-dens interval measurements over time in 130 (92%) patients with Down syndrome. Eleven patients (8%) had changes of atlanto-dens interval measurements between 2 and 4 mm over time; however, none of these patients had any clinical symptoms. The analyses of data obtained from several subgroups (males and females, various age groups, and patients with and without atlantoaxial instability) did not show any significant changes of atlanto-dens interval measurements of successively obtained radiographs. Our recommendations for and rationale of routine screening for atlantoaxial instability and follow-up examinations are discussed in detail.

scholarly journals Study of correlation of ultrasonography with surgical evaluation of adnexal masses: a prospective study

2018 ◽  
Vol 7 (10) ◽  
pp. 4218
Author(s):  
Urmila Tripathi ◽  
Geetanjali Munda
Keyword(s):  
Prospective Study ◽  
Clinical Symptoms ◽  
Histopathological Examination ◽  
Abdominal Mass ◽  
Age Groups ◽  
Serous Cystadenoma ◽  
Ovarian Tumors ◽  
Adnexal Masses ◽  
Malignant Changes ◽  
A Prospective Study

Background: Adnexal masses are one of the most common pathologies among women of all age groups. Ovarian tumors, alone, represent two thirds of these cases. Malignant ovarian tumors are the fourth most common cause of death in women. Accurate diagnosis is required foremost for proper treatment and management of the patients.Methods: A prospective study done on 100 patients with adnexal masses presenting to Department of Obstetrics and Gynecology at Kamla Raja Hospital, G.R.M.C, Gwalior from February 2015 to August 2016. Firstly, the cases were studied by ultrasonography then intraoperatively and simultaneous sampling for HPE done. The study included women with clinical symptoms of pain abdomen/ discomfort, bleeding per vaginum, abdominal mass was subjected to ultrasonography, diagnosed with adnexal mass. 100 indicated patients were taken for surgery and intraoperative tissue and fluid samples were taken and sent for HPE.Results: No discordance found regarding laterality of adnexal masses between ultrasonographical findings and surgical findings. 69% cases were devoid of any septation/locules/nodules. Most common pathology found to be ectopic pregnancy. Most common benign ovarian mass encountered was serous cystadenoma (31.1%) and malignant mass was serous adenocarcinoma (12.7%). Apart from 13 malignant adnexal masses, 2 adnexal masses had malignant changes found on histopathological examination. 11 cases were found to be of advanced stage on surgical findings, which then confirmed by HPE.Conclusions: There is positive correlation between ultrasonographical and surgerical evaluation of adnexal masses. Correlation of the lesion’s location and appearance at imaging with the surgical findings will aid in the detection of potential pathology reporting errors.

scholarly journals Incidental Finding of Annular Pancreas in a Routine Cadaveric Dissection: Case Report

2019 ◽  
Vol 36 (04) ◽  
pp. 299-302
Author(s):  
Mythraeyee Prasad ◽  
Theresa Susan Kuriakose ◽  
Sipra Rout
Keyword(s):  
Congenital Anomaly ◽  
Case Report ◽  
Duodenal Obstruction ◽  
Clinical Symptoms ◽  
Incidental Finding ◽  
Age Groups ◽  
Annular Pancreas ◽  
Present Case Report ◽  
Rare Congenital Anomaly ◽  
Variable Presentation

AbstractAnnular pancreas is a rare congenital anomaly that results from the malrotation of the ventral pancreatic bud. The presentation of annular pancreas varies: it can be asymptomatic or present clinical symptoms of duodenal obstruction that can affect all age groups, from newborns to adults. In the present case report, we describe a complete type of annular pancreas at the level of the second part of the duodenum, which was an incidental finding in a prosected specimen. This anomaly has significant clinical relevance to clinicians and radiologists due to its variable presentation. The embryological, clinical and radiological aspects of this congenital anomaly are discussed in detail in the present article.

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