scholarly journals Etiological and Epidemiological of Viral Diarrhea Among Children Under the Age of Five in Shenyang From 2018 to 2020

Author(s):  
Xinxin Dong ◽  
Ying Qi ◽  
Ruiyu Chai ◽  
Han Xu ◽  
Jin Wang ◽  
...  

Abstract Diarrhea is one of the leading causes of death among children, especially in the age under five, but little data are available on the etiology of viral diarrhea in Shenyang. To understand the infection status and the relevant epidemiological characteristics of viral diarrhea and to fill gaps of how the distribution of viruses change across Shenyang in children under the age of five with diarrhea, stool specimens of children with diarrhea aged 0-59 months and surveillance data was collected from Sentinel Hospital of Shenyang. Rotavirus, calicivirus, adenovirus, and astrovirus 4 viruses were then analyzed, and the proportion of children who tested positive for each pathogen was calculated and seasonal and spatial patterns for major organisms were determined. Viruses were identified in 47.9% of the 897 samples from children with diarrhea. The main viruses of stool samples were rotavirus (16.9%, predominant type G9P[8]), calicivirus (14.7%, norovirus, predominant type GII ), adenovirus (11.8%), and astrovirus (4.5%). Viral infections were mainly detected in the age of 0-12 months. In the area of Shenyang, Huanggu has the most cases (198, 22.1%), followed by Dadong (137, 15.3%) and Hunnan (135, 15.1%). The positive rate of viruses in patients of different ages, seasons, and regions was not same. Public health entities and the government should develop corresponding measures for different age groups, seasons, and regions.

2017 ◽  
Vol 9 (1) ◽  
pp. 7-14
Author(s):  
Adanma Florence Nwaoha ◽  
Camelita Chima Ohaeri ◽  
Ebube Charles Amaechi

Diarrhoea is the second leading cause of infectious mor­bidity and mortality in children under five years of age. This study aimed at identifying the most common parasites and potential risk factors for diarrhoea among children 0-5 years attending Abia State Specialist hospital and Federal Medical Centre, Umuahia, in south east­ern Nigeria. We used 400 faecal samples from children with diarrhoea –and 200 without– in combination with hospital-based case control and a questionnaire Stool samples were processed with direct normal saline and formal-ether sedimentation method for parasitological stud­ies. More males than females were infected in nearly all age groups in both diarrhoeal and control groups (X2=23.04, df=1, P<0.05: X2=11.52, df=1, P<0.05 respectively). Amachara had more infections (X2=0.15, df=1, P< 0.05). January had the highest rate of infection (22.5%). Main clinical features were watery depositions over 3 times a day, diarrhoea lasting for days, fever, vomiting, and dehydration. Mothers learned about the problem through health workers, television and in medical centers. Risk correlated with mother’s education, occupation, latrine type, waste water disposal, hand washing, kitchen cleaning; sources and storage of water; and bottle milk (P< 0.05).Ignorance greatly con­tributed to the spread of parasitic disease in the area: the government should improve education and other strategies to alleviate the spread of the disease..


2017 ◽  
Vol 16 (5) ◽  
pp. 80-86
Author(s):  
E. I. Burtseva ◽  
E. A. Mukasheva ◽  
A. G. Rosatkevich

This paper presents the risk analysis of influenza virus infection in different age groups based on the prevalence and mortality rates. The epidemiological characteristics of the influenza virus circulation during postpandemic period are given. Main aspects of specific and non-specific influenza prevention are discussed. The efficacy of the interferon-based medication Grippferon in the prevention of influenza and acute respiratory viral infections (ARVI) is justified.


2020 ◽  
Vol 41 (19) ◽  
pp. 1833-1838 ◽  
Author(s):  
Jiahao Duan ◽  
Yeshun Wu ◽  
Cunming Liu ◽  
Chun Yang ◽  
Ling Yang

Abstract Viral pneumonia has a significant effect on the cardiovascular system through various mechanisms; even though it is traditionally regarded as a pulmonary disease characterized by dyspnoea and hypoxaemia. Recent research works have shown that cardiovascular events outweigh all other causes of death in various influenza pandemics. Therefore, the exploration of the effects of viral pneumonia on cardiovascular system becomes increasingly essential. The objective of this review is three-fold: first, to summarize the knowledge about the epidemiological characteristics and clinical manifestations of viral infections that are the recent causes of global pandemics; second, to explore the cardiovascular response to these infections; and third, to attempt in identifying the possible coping strategies of the Wuhan epidemic and the future viral infection pandemics.


2019 ◽  
Vol 9 (2) ◽  
pp. 138-143
Author(s):  
Pshtewan D. Majeed ◽  
Karim J. Saleh ◽  
Hussein M. Abdullah

Helicobacter pylori is a significant pathogen of the gastrointestinal tract infection connected with gastritis, peptic ulcers, and gastric carcinoma. Its infection influence more than half of the world’s inhabitants. This study aims to reveal the prevalence rate of H. pylori infection among patients with gastroenteritis and to investigate the risk factors such as age, gender, residency, blood group and rhesus factors related to this infection in Erbil city. Of 300 stool specimens from patients presenting with gastroenteritis who were admitted to Rizgary Teaching Hospital, Erbil, Iraq, from September 2018 to February 2019 were collected and screened for the presence of H. pylori antigens using rapid immunochromatographic assay (Camp Medica Group, Bucharest, Romania). A questionnaire sheet was prepared and used for each study subject. Of 300 samples examined, H. pylori were detected in 79 samples (26.33%). The highest rate of H. pylori infection was founded among the age group 21–30 years, but there were no significant differences between them (P > 0.05). A significant relationship between H. pylori infection and gender (male 19.05% and female 33.33%) was recorded (P < 0.05). There was a significant association between H. pylori infection and ABO blood group among patients (P < 0.05), but there is no significant association between H. pylori infection and the type of rhesus factor (P > 0.05) that H. pylori infection was higher in rhesus factor negative compared to rhesus factor positive. The prevalence was significantly higher among rural area (55.56%) than urban area (23.44%) (P < 0.05). We concluded that the spread of H. pylori positive rate was high among patients with gastroenteritis in Erbil city. The great prevalence of H. pylori was founded in the patients with O blood group, urban area, and females. There was no significant association between H. pylori infection and age groups and rhesus factor.


Viruses ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 184
Author(s):  
Sibele de Oliveira-Tozetto ◽  
Cristina Santiso-Bellón ◽  
Josep M. Ferrer-Chirivella ◽  
Noemi Navarro-Lleó ◽  
Susana Vila-Vicent ◽  
...  

Sapovirus is a common cause of acute gastroenteritis in all age groups. Sapovirus infections are seldom investigated in Spain, and its epidemiology in the country is not well known. The use of molecular diagnostic procedures has allowed a more frequent detection of sapoviruses in patients with diarrhea. A total of 2545 stool samples from patients with acute gastroenteritis attended from June 2018 to February 2020 at the Clinic University Hospital in Valencia, Spain, were analyzed by reverse transcription (RT) and real-time multiplex PCR (RT-PCR) to investigate the etiology of enteric infections. Sapovirus was the second enteric virus detected with a positive rate of 8%, behind norovirus (12.2%) and ahead of rotavirus (7.1%), astrovirus (4.9%) and enteric adenoviruses (2.9%). Most sapovirus infections occurred in infants and young children under 3 years of age (74%) with the highest prevalence in autumn and early winter. Coinfections were found in 25% of the patients with sapovirus diarrhea, mainly with other enteric viruses. Genotyping demonstrated the circulation of seven different genotypes during the study period, with a predominance of genotypes GI.1, GI.2, and GII.1. Phylogenetic analysis showed that genogroup GII strains form a cluster separated from genogroup GI and GV, being genotype GV.1 strains related to genotype GI.1 and GI.2 strains.


2021 ◽  
Author(s):  
Shuang Wu ◽  
Qinghua Hu ◽  
Chao Yang ◽  
Haijian Zhou ◽  
Hongyu Chen ◽  
...  

Abstract BackgroundAlthough the global epidemic of pertussis has been controlled through the expanded Programme on Immunization (EPI), the incidence of pertussis has increased significantly in recent years, with a "resurgence" of pertussis occurring in developed countries with high immunization coverage. The incidence of pertussis in Shenzhen, was about 2.02/100,000, far exceeding that of the whole province and the whole country (both < 1/100,000). At the same time, more and more studies have shown that there is antigenic drift in Bortella pertussis, which may be associated with the increased incidence. 50 strains of Bordetella pertussis isolated from 387 suspected cases were collected in Shenzhen in 2018 for genotype distributions and molecular epidemiological characteristics analysis. MethodsThere were 387 suspected cases of pertussis enrolled at surveillance sites in Shenzhen from June to August 2018. Nasopharyngeal swabs of suspicious cases were collected for separation and culture, and the positive strains were identified by real-time PCR. The immunization histories of patients were analyzed to investigate the relationship between pertussis vaccination and infection. The major antigen genes of the isolated positive strains, including ptxA, ptxC, ptxP, prn, fim2, and fim3, were analyzed by second-generation sequencing. The homology and phylogenetic analysis of these genes was performed using the public genome sequence downloaded from GenBank. Results50 strains of Bordetella pertussis were successfully isolated from nasopharyngeal swabs of 387 suspected cases, with a positive rate of 12.9%, including 28 males and 22 females, accounting for 56.0% and 44.0% respectively. It is worth noting that 38 were under one-year-old among the positive patients, accounting for 76.0%. Among the cases with a history of vaccination, 71.4% of positive patients did not complete the basic vaccination process of the DTaP at the time of onset. Three major antigen genotypes different from CS and Tohama I vaccine strains were identified, and they had distant genetic relationships and 62.0% of which was prn2/ptxC2/ptxP3/ptxA1/fim3-1/fim2-1. ConclusionsThe positive rate of cases under one-year-old was significantly higher than that of other age groups and should be monitored. The major antigenic genes of the Bordetella pertussis strains isolated in Shenzhen were different from those of common vaccine strains. This study explained the resurgence of whooping cough from certain angles, including immunization strategy, vaccination time and genome variation of strains, which is beneficial to prevent pertussis infections.


2019 ◽  
Vol 147 ◽  
Author(s):  
Li-Wei Gao ◽  
Ju Yin ◽  
Ying-hui Hu ◽  
Xiu-yun Liu ◽  
Xue-li Feng ◽  
...  

AbstractPaediatric Mycoplasma pneumoniae pneumonia (MPP) is a major cause of community-acquired pneumonia in China. Data on epidemiology of paediatric MPP from China are little known. This study retrospectively collected data from June 2006 to June 2016 in Beijing Children's Hospital, Capital Medical University of North China and aims to explore the epidemiological features of paediatric MPP and severe MPP (SMPP) in North China during the past 10 years. A total of 27 498 paediatric patients with pneumonia were enrolled. Among them, 37.5% of paediatric patients had MPP. In this area, an epidemic took place every 2–3 years at the peak, and the positive rate of MPP increased during these peak years over time. The peak age of MPP was between the ages of 6 and 10 years, accounting for 75.2%, significantly more compared with other age groups (χ2 = 1384.1, P < 0.0001). The epidemics peaked in September, October and November (χ2 = 904.9, P < 0.0001). Additionally, 13.0% of MPP paediatric patients were SMPP, but over time, the rate of SMPP increased, reaching 42.6% in 2016. The mean age of paediatric patients with SMPP (6.7 ± 3.0 years old) was younger than that of patients with non-SMPP (7.4 ± 3.2 years old) (t = 3.60, P = 0.0001). The prevalence of MPP and SMPP is common in China, especially in children from 6 to 10 years old. Paediatric patients with SMPP tend to be younger than those with non-SMPP. MPP outbreaks occur every 2–3 years in North China. September, October and November are the peak months, unlike in South China. Understanding the epidemiological characteristics of paediatric MPP can contribute to timely treatment and diagnosis, and may improve the prognosis of children with SMPP.


Author(s):  
Mohammad Enayet Hossian ◽  
Md Muzahidul Islam ◽  
Mojnu Miah ◽  
Warda Haque ◽  
Jan Vinjé ◽  
...  

Abstract Background Since August 2017 Myanmar nationals from Rakhine state have crossed the border into Bangladesh and settled in Cox’s Bazar, the World's largest refugee camp. Due to overcrowding, poor sanitation, and hygienic practices they have been under significant health risks including diarrheal diseases. Objective To determine the viral etiology of acute gastroenteritis (AGE) among forcibly displaced Myanmar nationals (FDMN) and adjacent Bangladeshi local host population (AHP). Methods From April 2018 to April 2019, we collected stool specimens from 764 FDMN and 1159 AHP of all ages. We tested 100 randomly selected specimens from each group for the most common acute gastroenteritis viruses. Results Among 200 diarrhea patients, 55% and 64% of FDMN and AHP patients respectively had viral infections; the most common viruses were rotavirus (29% vs 44%), adenovirus (24% vs 31%) and norovirus (14% vs 10%). In both populations, viral infections were significantly higher in children less than five years; compared to bacterial infections which were higher in patients older than five years of age (p=&lt;0.05). Conclusion Disparities in viral and bacterial prevalence among various age groups warrant careful antibiotic usage, especially in children less than five years.


Author(s):  
Sabiha Alam ◽  
Farhana Rumzum Bhuiyan ◽  
Tanvir Hossain Emon ◽  
Mahmudul Hasan

The novel coronavirus diseases 2019 (COVID-19) has unfolded an unprecedented worldwide public health emergency with disastrous economic consequences. Around 12 million coronavirus cases have already been identified with over half a million deaths. Despite numerous efforts by the government as well as international organizations, these numbers are still increasing with a surprising rate. Although urgent and absolutely necessary, a reliable therapeutic or vaccine is still elusive and this status quo may remain for an uncertain period of time. Taken that into account, boosting up adaptive immunity through nutritional interventions may help subside this epidemic and save many lives. This review focuses on the nexus between a balanced diet and adaptive immunity, particularly, how a poor diet may lead to compromised immunity resulting in susceptibility to viral infections. Additionally, we discuss how nutrients (vitamins, minerals, trace elements) could be used as a tool to modulate immune response and thus impede viral infections. The study also summarized nutritional recommendations to combat COVID-19 in different countries and territories and dietary sources of those key nutrients. Moreover, different nutritional intervention strategies based on different age groups, physiological and medical conditions were also included, and the challenges of nutritional interventions towards the care of COVID-19 patients were also discussed. Since the availability of a drug or vaccine is still uncertain, a balanced diet or nutrient therapy could be used as a robust strategy to combat COVID-19. Thus, we hope this review may help to make an informed decision with regard to diet choice both at individual level as well as clinical settings.


2019 ◽  
Vol 9 (01) ◽  
pp. 39-45
Author(s):  
Suad Shallal Shahatha

This study was carried out to investigate the epidemiology of Giardia lamblia parasites in patients who visited some of the hospitals in Anbar province, which included (Fallujah Teaching Hospital, Ramadi Teaching Hospital, Ramadi Teaching Hospital for Women and Children and Hit Hospital) during by examining 864 stool samples in a direct examination method, The results revealed the infection rate was 41.7 % and the percentage of infection among males 47.8% is higher than that of females 35.4% with significant differences (p≤0.05). The age groups (1-9) years recorded the highest rates 55.4% and the lowest rate 13.6% in the age group (40-49) years. The highest rate of infection was 62.5% during the month of June, while the month of October was the lowest rate 5% and significant differences. The incidence rate in rural areas was 50.6% higher than in the urban areas 32.5%. The study also included the effect of Teucrium polium L. on the parasite in the culture media HSP-1, the concentrations of 0.5-3 mg / mL significantly affected Giardia, it was noted whenever the greater the concentration, the greater the effect during different treatment periods (1-4) days, as the highest concentration 3 mg/ml killed all Giardia parasites on the fourth day of treatment.


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