scholarly journals Seroprevalence of hepatitis a virus antibody in 11-15 years old children in Vijayawada and age-related incidence of hepatitis a virus in GGH, Vijayawada

2021 ◽  
Vol 8 (3) ◽  
pp. 440
Author(s):  
Srimukhi Anumolu ◽  
Kireeti Jarjapu ◽  
M. A. Rahman
Keyword(s):  
Hepatitis A ◽  
Hepatitis A Virus ◽  
P Value ◽  
Serum Samples ◽  
Igg Antibody ◽  
Number Of Children ◽  
Age Related ◽  
Increased Risk ◽  
Intermediate Endemicity ◽  
Ig G

Background: To estimate seropositivity of hepatitis A virus Ig G antibody (HAV Ig G antibody) in 11 to 15 years aged children in Vijayawada.Methods: The study group includes 265 consecutive children aged 11 to 15 years attending GGH, Vijayawada and had a blood sample taken for any reason. The serum samples collected were screened for Anti HAV IgG antibody using commercially available Elisa kit (WANTAI). Information related to various socio demographic factors also were elicited by interview method. All the Anti-Hepatitis A virus IgM antibody positive individuals list are collected from 1stJuly 2015 to 1st august 2017 and were categorized based on age and analysed.Results: The total seropositivity against Hepatitis A virus is 71%. The number of children in the urban population showing IgG antibodies is lower compared to that of rural population (p value-0.028). The highest number of Hepatitis A virus infected population (positive IgM) is between 10-14 years (50), followed by 15-19 years (45) and 5-9 years (43). This shows that there is increased risk of infection in the older age group and there is a shift to 2nd and 3rd decade (p value – 0.045).Conclusions: The seropositivity of HAV IgG antibody in children aged 11-15 years is 71% in Vijayawada. Seroprevalence in the nearby area, Chennai, ten years back was found to be 95% by 12 years of age. This indicates there is a shift from high to intermediate endemicity in Vijayawada. There is need for vaccination in the susceptible individuals. 

scholarly journals Status of Immunity Against the Hepatitis A Virus in Healthy Population: A Report From Southeastern Iran

2021 ◽  
Vol 16 (4) ◽  
Author(s):  
Alireza Bakhshipour ◽  
Narjes Sargolzaie ◽  
Raheleh Rafaiee
Keyword(s):  
General Population ◽  
Rural Areas ◽  
Hepatitis A ◽  
Hepatitis A Virus ◽  
Enzyme Linked Immunosorbent Assay ◽  
Published Data ◽  
Healthy Population ◽  
Serum Samples ◽  
Igg Antibody ◽  
Urban And Rural Areas

Background: Recently, epidemiological studies on hepatitis A virus (HAV) infection showed the seroprevalence has been changing due to changes in lifestyle. To the best of our knowledge, there have been no published data on the seropositivity of HAV in Zahedan, southeastern Iran. Objectives: This study aimed to investigate the seroprevalence of HAV immunoglobulin G (IgG) antibody in Zahedan, southeastern Iran, to provide the required information for better planning in preventive strategies. Methods: In this cross-sectional study, using the available sampling method, a total of 250 serum samples (18 years and above) in both the urban and rural areas of Zahedan were evaluated for anti-HAV IgG by enzyme-linked immunosorbent assay. Results: Based on the results, it was observed that 228 out of 250 (91.2%) serum samples were positive for HAV IgG antibody. Male gender, family size, parents’ education, mother’s occupation, and history of jaundice before the age of 12 years were associated with positive HAV antibody (P < 0.001). The seroprevalence HAV rates were not statistically different between the residents of urban and rural regions. Conclusions: The seropositivity of HAV is high in both the urban and rural areas of Zahedan, Iran. Therefore, the HAV vaccination of the general population is not necessary. It is recommended to monitor HAV seroprevalence in the general population to determine high-risk groups, including anti-HAV seronegative individuals, for HAV vaccination in the residents of the southeast border.

Risk of Hepatitis A in Dutch Hemophilia Patients

1995 ◽  
Vol 74 (02) ◽  
pp. 616-618 ◽  
Author(s):  
E P Mauser-Bunschoten ◽  
H L Zaaijer ◽  
A A J van Drimmelen ◽  
H M van den Berg ◽  
G Roosendaal ◽  
...  
Keyword(s):  
Hepatitis A ◽  
Blood Donors ◽  
Hepatitis A Virus ◽  
Passive Immunization ◽  
Lower Percentage ◽  
Clotting Factor ◽  
Serum Samples ◽  
Increased Risk ◽  
Group 2 ◽  
Group 1

SummaryRecently, clotting factor preparations transmitted hepatitis A virus (HAV) to hemophilia patients. To study the risk of HAV infection in Dutch hemophilia patients, serum samples of 341 patients with hemophilia were tested for HAV antibodies (anti-HAV).197/341 patients (group 1) were treated with clotting factor concentrates produced from large plasma pools, 144/341 patients (group 2) were treated with small pool cryoprecipitate. The test results were compared to those of healthy blood donors (n = 19,746) of the same age. In addition stored serum samples (1983-1994) from hemophilia patients were tested for HAV antibodies.No increased risk of HAV infection was found in Dutch hemophilia patients. The anti-HAV prevalence in group 1 was 20%, in group 213% and in blood donors 41%. A significantly (p <0.002) lower percentage of HAV antibodies was found in hemophilia patients born in the 1950s using cryoprecipitate (11%) as compared to blood donors of the same age (40%), probably caused by passive administration of anti-HAV through clotting product. Passive immunization in the past was significantly (p <0.02) more often found in group 2 (41.7%) than in group 1 (28%).In the period 1983 till 1988 five seroconversions were seen in group 1 (2%) and one in group 2 (0.7%). Anti-HAV seroconversions were not observed after 1988.In a risk analysis we estimated that 2 plasma pools of 10,000 Dutch blood donors per year may contain HAV. The absence of HAV among Dutch hemophilia patients suggests that this contamination is successfully inactivated.

scholarly journals Outbreak of acute hepatitis A associated with men who have sex with men (MSM) in North Sardinia 2017-2018

2020 ◽  
Vol 14 (09) ◽  
pp. 1065-1070 ◽  
Author(s):  
Riccardo Bazzardi ◽  
Elena Dore ◽  
Massimo Ciccozzi ◽  
Alessia Lai ◽  
Margherita Pisanu ◽  
...  
Keyword(s):  
Acute Hepatitis ◽  
Hepatitis A ◽  
Hepatitis A Virus ◽  
P Value ◽  
Serum Samples ◽  
Sequencing Method ◽  
Acute Hepatitis A ◽  
Hiv Antibodies ◽  
Duration Of Hospitalization ◽  
Sex With Men

Introduction: We describe an outbreak of hepatitis A among men who have sex with men (MSM) which evolved in Sassari (Italy), between January 2017 and December 2018, close to a contextual of large concurrent hepatitis A outbreak reported in Europe and recently, in Italy. Methodology: HAV RNA detection and molecular characterization was performed from serum samples and/or stool by RT - PCR of VP1/2A junction region that ranges from nt. 2,873 to nt. 3,376. The phylogenetic correlation of the circulating hepatitis A strains was assessed by sequencing method according to the HAVNET protocol. Results: 10 Acute Hepatitis A virus (AHA)-positive cases, 8 of which were among men who have sex with men (MSM) were identified. All patients were tested at the time of hospitalization for the presence of anti-HIV antibodies, only two MSM resulted co-infected by HIV. No differences were observed in median age (37 years vs. 41 years, P-value = 0.14), severity or duration of hospitalization between seropositive and HIV-negative men. Phylogenetic analysis was conducted in 2 cases and revealed two distinct sequences of genotype IA linking to clusters recognized in MSM in other European countries in 2016. Conclusion: Our study reported a recent increase of notified hepatitis A cases attributable to cases in the European interconnectedness of MSM in Sassari, a small locality. Hepatitis A vaccination for MSM in Sardinia region is recommended; however, our data emphasize the need of hepatitis A screening and vaccination not only for MSM with occasional partners but also for those in monogamous relationships.

Seroprevalence of anti-SARS-CoV-2 IgG antibodies in hospitalized patients at a tertiary referral center in North India (Preprint)

2020 ◽  
Author(s):  
Dr. Animesh Ray ◽  
Dr. Komal Singh ◽  
Souvick Chattopadhyay ◽  
Farha Mehdi ◽  
Dr. Gaurav Batra ◽  
...  
Keyword(s):  
Tertiary Care ◽  
Age Groups ◽  
Hospitalized Patients ◽  
North India ◽  
P Value ◽  
Care Hospital ◽  
Igg Antibodies ◽  
Igg Antibody ◽  
Increased Risk ◽  
Significant Difference

BACKGROUND Seroprevalence of IgG antibodies against SARS-CoV-2 is an important tool to estimate the true extent of infection in a population. However, seroprevalence studies have been scarce in South East Asia including India, which, as of now, carries the third largest burden of confirmed cases in the world. The present study aimed to estimate the seroprevalence of anti-SARS-CoV-2 IgG antibody among hospitalized patients at one of the largest government hospital in India OBJECTIVE The primary objective of this study is to estimate the seroprevalence of SARS-CoV-2 antibody among patients admitted to the Medicine ward and ICU METHODS This cross-sectional study, conducted at a tertiary care hospital in North India, recruited consecutive patients who were negative for SARS-CoV-2 by RT-PCR or CB-NAAT. Anti-SARS-CoV-2 IgG antibody levels targeting recombinant spike receptor-binding domain (RBD) protein of SARS CoV-2 were estimated in serum sample by the ELISA method RESULTS A total of 212 hospitalized patients were recruited in the study with mean age (±SD) of 41.2 (±15.4) years and 55% male population. Positive serology against SARS CoV-2 was detected in 19.8%patients(95% CI 14.7-25.8). Residency in Delhi conferred a higher frequency of seropositivity 26.5% (95% CI 19.3-34.7) as compared to that of other states 8% (95% CI 3.0-16.4) with p-value 0.001. No particular age groups or socio-economic strata showed a higher proportion of seropositivity CONCLUSIONS Around, one-fifth of hospitalized patients, who were not diagnosed with COVID-19 before, demonstrated seropositivity against SARS-CoV-2. While there was no significant difference in the different age groups and socio-economic classes; residence in Delhi was associated with increased risk (relative risk of 3.62, 95% CI 1.59-8.21)

scholarly journals INTERMEDIATE ENDEMICITY OF HEPATITIS A VIRUS INFECTION IN RURAL SETTLEMENT PROJECTS OF SOUTHWEST GOIÁS, BRAZIL

2015 ◽  
Vol 52 (3) ◽  
pp. 200-203 ◽  
Author(s):  
Raquel Silva PINHEIRO ◽  
Lyriane Apolinário de ARAÚJO ◽  
Karlla Antonieta Amorim CAETANO ◽  
Marcos André de MATOS ◽  
Megmar Aparecida dos Santos CARNEIRO ◽  
...  
Keyword(s):  
Virus Infection ◽  
Hepatitis A ◽  
Hepatitis A Virus ◽  
Rural Settlement ◽  
Rural Settlements ◽  
Factors Associated ◽  
History Of ◽  
Midwest Region ◽  
Risk Of Exposure ◽  
Intermediate Endemicity

BackgroundRural populations present an elevated risk of exposure to hepatitis A virus.ObjectiveThe objective of this study was to estimate the prevalence and risk factors associated with hepatitis A virus infection among residents of rural settlement projects of southwest Goiás, Central Brazil.MethodsA total of 466 residents were interviewed and tested for the detection of anti- hepatitis A virus antibodies by ELISA.ResultsThe global prevalence of anti- hepatitis A virus was 82.2%. In individuals aged 5-9 years and 10-19 years, the prevalence was 15% and 58.8%, respectively. Persons in the 10-19 age group, with a history of life in encampments, with more than five people per residence consuming well water, were predictors for exposure to hepatitis A virus.ConclusionOur results suggest that the hepatitis A virus endemicity in rural settlements in southwest Goiás similar to that found in the urban population of the Midwest Region, confirming the implementation of universal hepatitis A vaccination in children.

scholarly journals Frequency of antibodies and risk factors associated with Toxoplasma gondii infection in backyard pig production in the city of Mossoró, state of Rio Grande do Norte, Brazil

2019 ◽  
Vol 28 (3) ◽  
pp. 508-513 ◽  
Author(s):  
Isabela Maria Campanelli dos Santos ◽  
Alexandro Iris Leite ◽  
Maria Eduarda Chiaradia Furquim ◽  
Diego Carlos de Souza Zanatto ◽  
Simone de Jesus Fernandes ◽  
...  
Keyword(s):  
Risk Factors ◽  
Rio Grande ◽  
Female Gender ◽  
Immunofluorescence Assay ◽  
P Value ◽  
Serum Samples ◽  
Igg Antibody ◽  
Source Of Infection ◽  
Antibody Titers ◽  
Toxoplasma Gondii Infection

Abstract Toxoplasmosis is an important zoonosis for pregnant women and immunosuppressed people. The pig population also becomes infected by this pathogen, and undercooked or raw meat is an important source of infection for humans. The aims of the present study were to evaluate the rate of exposure of pigs to T. gondii in the municipality of Mossoró, Rio Grande do Norte and seek to identify associations with possible risk factors. Blood samples were collected from 412 pigs and were analyzed using the immunofluorescence assay. Among these 412 serum samples, 40.7% were seropositive for T. gondii. The IgG antibody titers were 64 (56 specimens), 128 (32), 256 (37), 512 (23), 1024 (14), 2048 (5) and 4046 (1). Seropositivity for T. gondii was found to be related (p-value < 0.05) to the following factors: female gender, semi-confined rearing system, use of well water, dewormed animals, presence of cats, goats, sheep, mice and vultures on the farm and carcasses left on the ground. In contrast, seropositivity was not related (p-value < 0.05) to the age of the pigs, type of facility or feeding with human food remains. Preventive measures need to be adopted on the farms studied here, with the aim of decreasing the animals’ intake of sporulated oocysts.

Age Related Prevalence of Antibodies to Hepatitis A Virus, Performed in Korea in 2005

2005 ◽  
Vol 12 (2) ◽  
pp. 186 ◽  
Author(s):  
Hea Jin Choi ◽  
Soo Young Lee ◽  
Sang Hyuk Ma ◽  
Jong Hyun Kim ◽  
Jae Kyun Hur ◽  
...  
Keyword(s):  
Hepatitis A ◽  
Hepatitis A Virus ◽  
Age Related

Person-to-Person Transmission of Hepatitis A Virus in an Urban Area of Intermediate Endemicity: Implications for Vaccination Strategies

2005 ◽  
Vol 163 (3) ◽  
pp. 204-210 ◽  
Author(s):  
J. C. Victor ◽  
T. Y. Surdina ◽  
S. Z. Suleimenova ◽  
M. O. Favorov ◽  
B. P. Bell ◽  
...  
Keyword(s):  
Urban Area ◽  
Hepatitis A ◽  
Hepatitis A Virus ◽  
Vaccination Strategies ◽  
Intermediate Endemicity

scholarly journals Personal Hygiene, Environmental Sanitation and Hepatitis A Infections in Universitas Jember

2018 ◽  
Vol 2 (7) ◽  
pp. 766-770
Author(s):  
Dian Septivita ◽  
Isa Ma’rufi ◽  
Farida Wahyu Ningtyias
Keyword(s):  
Hepatitis A ◽  
Hepatitis A Virus ◽  
Health Workers ◽  
Hepatitis Virus ◽  
Control Sample ◽  
Personal Hygiene ◽  
P Value ◽  
Environmental Sanitation ◽  
Control Approach ◽  
And Control

Hepatitis A is a disease caused by type A hepatitis virus that attacks human liver cells. The disease is closely related to the lack of clean water, inadequate sanitation and poor personal hygiene. Hepatitis A can lead to the incidence of widespread public health problems and cause outbreaks. The purpose of this study was to analyze the effect of personal hygiene and environmental sanitation on the incidence of hepatitis A at Universitas Jember. The researcher used observational analytics research design with case-control approach. A total of 92 respondent consisting of case and control respondents was taken as samples. Case sample selected by using simple random sampling, and control sample selected by using purposive sampling. The data were analyzed by using Chi-square test. The results showed that personal hygiene had an effect on the incidence of hepatitis A with p-value of 0.000, while environmental sanitation had no effect with p-value of 0.402. There is a need to enhance the active role of health workers in providing health promotion means in schools, such as routine health counseling to improve students' knowledge about hepatitis A and the way to prevent the disease through behavior improvement. Keywords: hepatitis A virus; personal hygiene; sanitation

scholarly journals Enteric viral hepatitis in the Socialist Republic of Vietnam (Southern Vietnam)

2021 ◽  
Vol 13 (4) ◽  
pp. 72-78
Author(s):  
Yu. V. Ostankova ◽  
A. V. Semenov ◽  
D. E. Valutite ◽  
E. B. Zueva ◽  
E. N. Serikova ◽  
...  
Keyword(s):  
Viral Hepatitis ◽  
Hepatitis A ◽  
Local Population ◽  
Hepatitis E ◽  
Chronic Viral Hepatitis ◽  
Diagnostic Methods ◽  
Serum Samples ◽  
General Group ◽  
Socialist Republic ◽  
Increased Risk

Aim: To study the hepatitis A (HAV) and hepatitis Е (HEV) prevalence in the Southern region of Vietnam based on the frequency analysis of the antibodies to hepatitis A and E viruses detection in the local population and groups at increased risk of infection.Materials and methods. Serological markers of enteral viral hepatitis were determined in blood serum samples from adults aged 18 to 65 years of three groups: conditionally healthy individuals (n = 397), HIV-infected (n = 316), and patients with chronic viral hepatitis (n = 268). The ELISA method was used for the qualitative detection of anti-HAV IgG, anti-HAV IgM, anti-HEV IgG, anti-HEV IgM.Results. When analyzing the prevalence of anti-HAV IgG in samples obtained from conditionally healthy, HIV-infected, and patients with chronic viral hepatitis, no differences were found between the groups. The incidence of anti-HAV IgG in the general group (n = 981) was 80.1%, in the absence of anti-HAV IgM. There were no gender-age differences in the frequency of anti-HAV IgG in the examined groups. Antibodies anti-HEV IgG in the groups of conditionally healthy, patients with chronic viral hepatitis, and HIV-infected were present in the samples in 36,2%, 33,2%, and 39,8% of cases, respectively. The prevalence of anti-HEV IgM in these groups was 3,27%, 4,1%, and 3,79%, respectively. In the general group (n = 981), anti-HEV IgG was detected in 36,6% of cases, anti-HEV IgM in 3,66%, which corresponds to the prevalence of antibodies to HEV in endemic regions.Conclusion. A high incidence of enteral viral hepatitis markers was shown in residents of South Vietnam, including the groups of conditionally healthy, patients with chronic viral hepatitis, and HIV-infected. There is an obvious need for further studies of the spread extent of hepatitis A and hepatitis E in the Socialist Republic of Vietnam using currently available highly sensitive diagnostic methods, including sequencing of the virus›s nucleotide sequences.

Sign in / Sign up

Export Citation Format

Share Document