scholarly journals Seroprevalence of Hepatitis A among Different Age Groups in Sakarya and Review of The Literature

2014 ◽  
Vol 20 (3) ◽  
pp. 110-114 ◽  
Author(s):  
Mehmet Köroğlu ◽  
Tayfur Demiray ◽  
Hüseyin Agah Terzi ◽  
Mustafa Altındiş
Keyword(s):  
Hepatitis A ◽  
Age Groups ◽  
Review Of The Literature

scholarly journals Parosteal Osteosarcoma with Pancreatic Metastasis and Multiple Relapses: A Case Report and Review of the Literature

2021 ◽  
pp. 983-988
Author(s):  
Daniel Cirotski ◽  
Jyoti Panicker
Keyword(s):  
Age Groups ◽  
Bone Cancer ◽  
Pancreatic Metastasis ◽  
Low Grade ◽  
Parosteal Osteosarcoma ◽  
Disease Course ◽  
Review Of The Literature ◽  
Histologic Subtype ◽  
Primary Bone ◽  
Multiple Relapses

Osteosarcoma is the most common primary bone cancer in all age groups. Metastasis mostly occurs with high-grade tumors disseminating to the lungs and other bones. Spread to the pancreas is rare and undocumented in the low-grade subtypes. Additionally, it is uncommon for the disease course of low-grade subtypes to involve multiple relapses. We present a 35-year-old woman with parosteal osteosarcoma who has experienced an atypical metastasis to the pancreas as well as multiple local and pulmonary relapses. The lesion was identified incidentally on routine imaging, and the patient underwent resection. We compare our case to the other reports of pancreatic metastasis in the literature. Despite being especially rare, clinicians ought to be aware of pancreatic metastasis of osteosarcoma. Furthermore, despite parosteal osteosarcoma’s less aggressive disease course, it can uncommonly lead to multiple relapses. We present a rare case exemplifying these phenomena in the prognostically favorable histologic subtype of parosteal osteosarcoma.

scholarly journals The Impact of an Inactivated Hepatitis A Vaccine with One Dose in Brazil: A Retrospective Time-Series

Vaccines ◽  
2021 ◽  
Vol 9 (4) ◽  
pp. 407
Author(s):  
Ana Luiza Bierrenbach ◽  
Yoonyoung Choi ◽  
Paula de Mendonça Batista ◽  
Fernando Brandão Serra ◽  
Cintia Irene Parellada ◽  
...  
Keyword(s):  
Time Series ◽  
Time Series Analysis ◽  
Hepatitis A ◽  
National Level ◽  
Age Groups ◽  
High Rate ◽  
Series Analysis ◽  
Annual Reduction ◽  
The Impact ◽  
Vaccination Period

Background: In 2014, a recommended one-dose of inactivated hepatitis A vaccine was included in the Brazilian National Immunization Program targeting children 12–24 months. This decision addressed the low to intermediate endemicity status of hepatitis A across Brazil and the high rate of infection in children and adolescents between 5 and 19 years old. The aim of the study was to conduct a time-series analysis on hepatitis A incidence across age groups and to assess the hepatitis A distribution throughout Brazilian geographic regions. Methods: An interrupted time-series analysis was performed to assess hepatitis A incidence rates before (2010–2013) and after (2015–2018) hepatitis A vaccine program implementation. The time-series analysis was stratified by age groups while a secondary analysis examined geographic distribution of hepatitis A cases. Results: Overall incidence of hepatitis A decreased from 3.19/100.000 in the pre-vaccine period to 0.87/100.000 (p = 0.022) post-vaccine introduction. Incidence rate reduction was higher among children aged 1-4 years old, with an annual reduction of 67.6% in the post-vaccination period against a 7.7% annual reduction in the pre-vaccination period (p < 0.001). Between 2015 and 2018, the vaccination program prevented 14,468 hepatitis A cases. Conclusion: Our study highlighted the positive impact of a recommended one-dose inactivated hepatitis A vaccine for 1–4-years-old in controlling hepatitis A at national level.

scholarly journals Seroepidemiology of hepatitis a and b in two urban communities of Rio de Janeiro, Brazil

1987 ◽  
Vol 29 (4) ◽  
pp. 219-223 ◽  
Author(s):  
Abdulbasit R. N. Abuzwaida ◽  
Marli Sidoni ◽  
Clara F. T. Yoshida ◽  
Hermann G. Schatzmayr
Keyword(s):  
Hepatitis B ◽  
Urban Communities ◽  
Enzyme Immunoassay ◽  
Rio De Janeiro ◽  
Hepatitis A ◽  
Gradual Increase ◽  
Age Groups

Hepatitis B markers were determined in 397 individuals from Niterói and 680 from Nova Iguaçu and prevalences of 9.1% (1.0% of HBsAg and 8.1% of anti HBs) and 11.1% (1.8% of HBsAg and 9.3% of antiHBs) were found, respectively. The comparative prevalence of both markers in relation to age showed a higher prevalence of HBsAg in the group 21-50 years old. Considering the antiHBs antibody, it was demostrated a gradual increase with age, reaching 14.9% in Niterói and 29.1% in Nova Iguaçu in individuals over 51 years old. For hepatitis A, in 259 samples from Niterói, equally distributed by age groups, an overall prevalence of 74.5% of anti-HAV antibodies was found. This prevalence increases gradually reaching 90.0% at age over thirty. In 254 samples from Nova Iguaçu analysed, a prevalence of 90.5% of antibodies was encountered when the same criteria of distribution of samples were used. This level of prevalence reached 90.0% already in the age over ten years old. The tests were performed by enzyme immunoassay with reagents prepared in our laboratory.

scholarly journals Current Hepatitis A Status in Canada

2001 ◽  
Vol 12 (6) ◽  
pp. 341-344 ◽  
Author(s):  
Jun Wu ◽  
Shimian Zou ◽  
Antonio Giulivi
Keyword(s):  
Hepatitis A ◽  
Hepatitis A Virus ◽  
Present Report ◽  
Age Groups ◽  
Current Status ◽  
Industrialized Countries ◽  
Subsequent Infection ◽  
Route Of Transmission ◽  
Sporadic Cases ◽  
Epidemiological Pattern

Hepatitis A, caused by the hepatitis A virus, occurs most frequently in developing countries, but also causes sporadic cases or outbreaks in industrialized countries. The most common route of transmission is fecal-oral. The incidence of hepatitis A varies with geography, and economic and environmental conditions. The epidemiological pattern of the disease has changed with improvements in hygiene and economic conditions. The incidence and prevalence of hepatitis A has decreased, while the average age of exposure and subsequent infection has increased. The present report describes the current status of hepatitis A in Canada. The incidence rate of reported cases in Canada varies from over 10/100,000 (1991) to 3.6/100,000 (1998), and is higher in males, 4.7/100,000 (1998), than in females, 2.5/100,000 (1998). The highest reported hepatitis A rates are in age groups 30 to 39 years and 40 to 59 years, and in British Columbia. Such information is important for assessing current immunization approaches and for decision-making about new preventive strategies against hepatitis A in Canada.

scholarly journals Increasing incidence of hepatitis A in Bangladesh

2012 ◽  
Vol 47 (3) ◽  
pp. 309-312 ◽  
Author(s):  
MZ Amin ◽  
LN Siddique ◽  
MA Slatter ◽  
KK Biswas
Keyword(s):  
Liver Disease ◽  
High Risk ◽  
Chronic Liver Disease ◽  
Hepatitis A ◽  
Hepatitis A Virus ◽  
Age Groups ◽  
Hepatitis E ◽  
Immunoglobulin M ◽  
Chronic Liver ◽  
High Risk Population

Hepatitis A (HAV) infection is caused by the hepatitis A virus which is transmitted through the fecal-oral route. Life long protective antibodies are present after infection. The number of cases of adult hepatitis A has progressively been increasing during the last several decades in Bangladesh. In addition, the pattern of age-specific seroprevalence of anti-HAV has changed with economic growth. The prevalence of anti-HAV in 20-40 year age range has declined rapidly during the last 3 decades. As a result, this age groups has a high risk for HAV infection and clinically overt hepatitis A is increasing in adolescents and adult. The aim of the present study were to assess whether the proportion of adults with acute HAV infection has been increasing over the years and analyze the seroprevalence of immunoglobulin M(IgM) anti- HAV antibodies in young adults below the age of 20 years as well as in cases of chronic liver disease. Sera collected from 530 patients with acute and chronic liver disease attends the Somorita Hospital Ltd. during the previous 2 years and 6 months (Jan. 2008- Jun. 2010) were tested for various serological markers of acute and chronic hepatitis. In addition, 530 normal healthy attendants of the patients above the age of 20 years were tested for IgM anti-HAV as controls. Of 530 patients with acute hepatitis (13.42%) were positive for immunoglobulin M. The patients who were IgM anti-HAV negative were found to be hepatitis B (106 patients), hepatitis C, (10 patients), hepatitis E (150 patients) and unclassified (273 patients). Although the frequency of HAV infection among young adult (< 20 age) had increased (33.33% to 42.35%) in the 2 years and 6 months period, the frequency of HAV infection among adults had also increased (15.38% to 28.13%) during the same period. This study should be helpful for the identification of high risk population for vaccination of hepatitis A. DOI: http://dx.doi.org/10.3329/bjsir.v47i3.13065 Bangladesh J. Sci. Ind. Res. 47(3), 309-312 2012

scholarly journals Suspected spread of hepatitis A virus from a restaurant among adults in rural area of the Kerala state, India

2019 ◽  
Vol 147 ◽  
Author(s):  
Y. K. Gurav ◽  
G. Retheesh Babu ◽  
K. P. Vinu ◽  
K. S. Lole
Keyword(s):  
Young Adults ◽  
Hepatitis A ◽  
Hepatitis A Virus ◽  
Age Groups ◽  
Hepatitis E ◽  
First Case ◽  
Positive Stool ◽  
Co Morbidity ◽  
Stool Samples ◽  
Kerala State

AbstractIndia is experiencing a substantial decrease in early childhood exposure to hepatitis A virus (HAV). Kerala has experienced several hepatitis A outbreaks in young adults/adults in the recent past. The current hepatitis outbreak occurred in Nellikuzhi, Kerala state, India in December 2016. Investigation was carried by preparing a line list of suspected hepatitis cases. The blood and stool samples collected from patients were tested for anti-HAV/anti-Hepatitis E virus (HEV) immunoglobulin (IgM) antibodies and RNA respectively. A total of 562 suspected hepatitis cases were reported during the outbreak. Along with the first case (35 years, male), 86.1% (484/562) of the cases gave history of consuming food/water/cold drinks from one restaurant. Anti-HAV IgM positivity was 74.5% (73/98) in tested samples and amongst the positives, 81% were adults/young adults and adolescents. None of the samples tested positive for anti-HEV IgM. There were three HAV associated deaths without any co-morbidity. Sequence analysis of HAV RNA positive stool samples showed the presence of genotype IIIA HAV. The suspected source of the infection was a private well situated in the premise of a restaurant. Considering increasing HAV naive population in Kerala, there is a need to introduce hepatitis A vaccine in high-risk age groups.

scholarly journals Changes in the epidemiology of hepatitis A in three socio-economic regions of China, 1990–2017

2019 ◽  
Vol 8 (1) ◽  
Author(s):  
Xiao-Jin Sun ◽  
Guo-Min Zhang ◽  
Rong-Jun Zhou ◽  
Hui Zheng ◽  
Ning Miao ◽  
...  
Keyword(s):  
Hepatitis A ◽  
Reporting System ◽  
Age Groups ◽  
Incidence Rates ◽  
Age Group ◽  
Notifiable Disease ◽  
Expanded Program On Immunization ◽  
Economic Regions ◽  
Economic Transitions ◽  
Socioeconomic Inequity

Abstract Background Hepatitis A (HepA) vaccination and economic transitions can change the epidemiology of HepA. China’s Gross Domestic Product (GDP) per capita was known to be inversely associated with the incidence of HepA, but a deeper understanding of the epidemiology of HepA in different socio-economic regions is lacking. We compare the changing epidemiology of HepA in three socioeconomic-geographic regions of China. Methods We obtained data on all HepA cases reported through the National Notifiable Disease Reporting System and assessed trends and changes in age-specific incidence rates by age quartile and season. We categorized the country into three regions, the sequential years into five era, compared the incidence, quartile age, seasonal intensity and coverage of HepA of the three regions. Linear regression was performed to analyse trends in incidence of HepA and to analyse the association between coverage and incidence. Results The annual mean incidences of HepA in the eastern, central, and western regions decreased from 63.52/100 000, 50.57/100 000 and 46.39/100 000 in 1990–1992 to 1.18/100 000, 1.05/100 000 and 3.14/100 000 in 2012–2017, respectively. Decreases in incidence were seen in all age groups in the three regions; the incidence was highest (9.3/100 000) in the youngest age group (0–4 years) of the western region, while in the central region, the age group with the highest incidence changed from 0 to 9 years to adults ≥60 years old. In 2017, the median age of HepA cases was 43 years (Q1–Q3: 33–55), 47 years (Q1–Q3: 32–60) and 33 years (Q1–Q3: 9–52) in the eastern, central, and western provinces, respectively. Seasonal peaks became smaller or were nearly elimination nationwide, but seasonality persisted in some provinces. After the Expanded Program on Immunization (EPI) included HepA vaccine into the routine schedule in 2007, HepA coverage increased to > 80% in the three regions and was negatively association with the HepA incidence. Conclusion The incidence of HepA decreased markedly between 1990 and 2017. A socioeconomic inequity in coverage of HepA vaccine was almost eliminated after HepA vaccine was introduced into China’s EPI system, but inequity in incidence still existed in lower socio-economic developed region.

Seroprevalance of Hepatitis A in The Adult Age Groups

2015 ◽  
Vol 4 (1) ◽  
pp. 54-58 ◽  
Author(s):  
Meryem Iraz ◽  
Bilge Gültepe ◽  
Mehmet Ziya Doymaz
Keyword(s):  
Hepatitis A ◽  
Age Groups ◽  
Adult Age

scholarly journals Comparative hepatitis A seroepidemiology in 10 European countries

2012 ◽  
Vol 140 (12) ◽  
pp. 2172-2181 ◽  
Author(s):  
S. KURKELA ◽  
R. PEBODY ◽  
G. KAFATOS ◽  
N. ANDREWS ◽  
C. BARBARA ◽  
...  
Keyword(s):  
Disease Burden ◽  
Hepatitis A ◽  
Hepatitis A Virus ◽  
Age Groups ◽  
Risk Groups ◽  
Vaccination Policy ◽  
Laboratory Results ◽  
Children And Young Adults ◽  
Middle Aged Adults ◽  
Local Laboratory

SUMMARYThe WHO recommends hepatitis A virus (HAV) immunization according to level of transmission and disease burden. We aimed to identify susceptible age groups by standardized serosurveys to inform HAV vaccination policy in participating countries: Belgium, Czech Republic, England, Finland, Germany, Italy, Lithuania, Malta, Romania, and Slovakia. Each country tested national serum banks (n = 1854–6748), collected during 1996–2004, for anti-HAV antibodies. Local laboratory results were standardized to common units. Forty-one per cent of those aged <30 years and 6% of those aged ⩾30 years were susceptible to HAV in Romania; compared to 70–94% and 26–71%, respectively, elsewhere. Romania reported high HAV incidence in children and young adults. Other countries reported HAV disease primarily in older risk groups. The results suggest low level of HAV transmission in most of Europe. Romania, however, appeared as an area with intermediate transmission. Vaccination of risk groups in countries with high susceptibility of young and middle-aged adults needs to be continued.

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