scholarly journals Estimation and Comparison of Immunization Coverage under Different Sampling Methods for Health Surveys

2014 ◽  
Vol 2014 ◽  
pp. 1-14 ◽  
Author(s):  
D. C. Nath ◽  
B. Patowari

Immunization currently averts an estimated 2-3 million deaths every year in all age groups. Hepatitis B is a major public health problem worldwide. In this study, the estimates of hepatitis B vaccine coverage are compared among three sampling plans namely, 30×30 sampling and 30×7 sampling method under cluster sampling and systematic random sampling schemes. The data has been taken from the survey “Comparison of Two Survey Methodologies to Estimate Total Vaccination Coverage” sponsored by Indian Council of Medical Research, New Delhi. It is observed that the estimations of proportions of this vaccination coverage are significantly not different at 5% level of probability. Both 30×30 sampling and 30×7 sampling will be preferred to systematic sampling in estimation of hepatitis B vaccine coverage for this study population because of quick estimation and lesser cost. The 30×7 cluster sampling is the most recommended method for such immunization coverage especially in a developing country.

2019 ◽  
Vol 134 (6) ◽  
pp. 651-659 ◽  
Author(s):  
Ruth Koepke ◽  
Danielle N. Sill ◽  
Wajiha Z. Akhtar ◽  
Kailynn P. Mitchell ◽  
Sheila M. Guilfoyle ◽  
...  

Objectives: Despite recommendations for vaccination against hepatitis A virus (HAV) and hepatitis B virus (HBV) for all adults at increased risk of infection, several US states have reported increases in HAV and HBV infections among persons who inject drugs. We investigated hepatitis A and hepatitis B vaccination coverage among a sample of persons who reported injecting drugs and had evidence of hepatitis C virus (HCV) infection. Methods: We searched the Wisconsin Immunization Registry for the vaccination records of persons who underwent HCV testing at syringe services programs from January 1 through August 31, 2018, and were reported to the Wisconsin Division of Public Health as having positive HCV antibody test results and a history of injection drug use. We calculated the percentage of persons who were vaccinated according to national recommendations. Results: Of 215 persons reported, 204 (94.9%) had a client record in the Wisconsin Immunization Registry. Of these 204 persons, 66 (32.4%) had received ≥1 dose of hepatitis A vaccine, 46 (22.5%) had received 2 doses of hepatitis A vaccine, and 115 (56.4%) had received 3 doses of hepatitis B vaccine. Hepatitis B vaccine coverage decreased with increasing age, from 88.0% (22 of 25) among adults aged 20-24 to 30.3% (10 of 33) among adults aged 35-39. Conclusions: These findings suggest that most persons who inject drugs in Wisconsin are susceptible to HAV infection and that most persons aged ≥35 who inject drugs are susceptible to HBV infection. In addition to routine vaccination of children, targeted hepatitis vaccination programs should focus on adults who inject drugs to help prevent future infections.


2020 ◽  
Vol 9 (5-6) ◽  
pp. 779-786
Author(s):  
N. P. Galina ◽  
A. Ya. Mindlina ◽  
R. V. Polibin

Over the last years, incidence of vaccine-preventable infections tended to increase both in Russia and multiple European countries due to diverse reasons, including loss of alertness in medical workers to ensure proper quality of immunization. Currently, vaccination is considered to be the most efficient means for preventing infectious diseases. However, vaccination efficacy is directly related to population coverage and proper timeframe for its application.Materials and methods. Diphtheria, tetanus, measles and hepatitis B vaccination coverage and timeframe were analyzed for population of Russia, Moscow as well as the three pediatric and adult out-patient hospitals.Results. It was found that compared to adults, pediatric subjects were vaccinated better. However, in case of 95% or higher coverage against all infections, shortcomings in vaccination timeframe were uncovered. In 2017, despite pediatric subjects should be vaccinated against diphtheria and tetanus at the age of 3-to-6 months, coverage was as low as 46.9% in Russia, 48.7% in Moscow that ranged in some polyclinics from 21.8% in 2012 down to 1.7% in 2017. Moreover, this situation was even more unfavorable in case of revaccination program. In particular, it was found that at the age of 18 months only 50, 54, and 49–55% underwent revaccination in the Russia, Moscow 54%, and some out-patient hospitals, whereas at the age of 7–14 years in Russia there were revaccinated up to 97% population. Likewise, at the age of 6 months there were covered with vaccination against hepatitis B as few as 49% population in Russia and Moscow, whereas more than 90% coverage was achieved only at the age of 1 year. Immunization coverage reaching more than 85% of adult population against hepatitis B is superior to diphtheria and tetanus. Immunization coverage against measles in Russia at all age groups was over 90% population. Thus, it is necessary to optimize activities on adhering to vaccination timeframe, as decline in quality of vaccination inevitably leads to elevated incidence rate of vaccine-preventable infections. This and vaccination coverage might be adjusted by introducing a Preventive Vaccination Surveillance and Reporting Automated System in the Russian Federation.


Author(s):  
Vani Srinivas ◽  
Tess Shajan ◽  
Sudheesh Muthuthodiyil Karippankunnath ◽  
Theertha Pradeep Reshmi ◽  
Vidhu Victor ◽  
...  

Background: Hepatitis B is one of the most important blood borne infection, the health care workers may acquire while providing care to the patients. The overall aim of this study was to estimate the Hepatitis B vaccine coverage and its determinants among health care workers.Methods: This cross-sectional study was done in a rural tertiary care hospital in Palakkad district, of Kerala. We particularly looked for self-reported hepatitis B vaccination coverage and its determinants, using self-administered pretested questionnaire in 410 health workers. We calculated the proportions and looked for association between the various independent variables and dependent variables for vaccination coverage.Results: Out of 410 study participants, 119 (29%) of them were males and 291 (71%) of them were females. The mean age of the participant was 31.3 years and the range was between 19 to 70 years. 365 (89%) were vaccinated with atleast one dose of Hepatitis B Vaccine. Of these 306 (74.6%) had received all the 3 doses of vaccine, as per schedule. Gender and years of experience was not associated with the Hepatitis B vaccination status. However, variables like educational status, professional background was associated with hepatitis B vaccine coverage.Conclusions: The coverage of hepatitis B vaccine was high. Among those with incomplete vaccination few of them were waiting for completing the vaccination schedule in near future. Good hospital policies like vaccinating the new medical students and new employees were the main factors responsible for high vaccination coverage among the health care workers in our study.


2018 ◽  
Vol 7 (4) ◽  
pp. 197-201
Author(s):  
Mir M Hassan Bullo ◽  
Mirza Amir Baig ◽  
Jawad Faisal Malik ◽  
Ejaz Ahmad Khan ◽  
Muazam Abbas Ranjha ◽  
...  

Background: Measles is highly contagious vaccine preventable disease (VPD), and a major public health problem considered as leading cause of morbidity and mortality in developing countries like Pakistan. An outbreak of measles was reported in Sharifabad Islamabad on 15th of April 2017, and an investigation was launched to assess the magnitude of outbreak, evaluate risk factors and recommend control measures. Methods: A comprehensive house to house active case search along with vaccine coverage survey was conducted from April 19-22, 2017. A case was defined as "onset of maculopapular rash with fever in a resident of Sharifabad with at least one of the following signs/ symptoms, Coryza, Conjunctivitis, Cough, Otitis media or Pneumonia present in between 19 March to 22nd April 2017". Four age & sex matched controls were selected from the neighborhood. Data was collected through interview method using structured questionnaire and vaccination coverage was determined by using Epi survey form. Blood samples were sent for laboratory confirmation. Results: A total of eight cases were identified through active case finding while three were reported by local practitioner. Mean age of cases were 20 months (range 8-36 months). Severely affected age-group was 1-2 years with attack rate of 46%. Around two-third (64%) of cases and a few (16%) of controls were unvaccinated against measles. Contact with measles patient [OR 25.2, CI 3.9-160.1, P=0.00], unvaccinated children [OR 9.2 CI 2.12-40.4, P=0.000], social misconception regarding vaccination [OR 7.8 CI 1.42-42.6, P=0.00], and distance from healthcare facility [OR 5.7 CI 1.15-28.35, P=0.02] were significant risk factors. Vaccine efficacy was 90%. Conclusion: Main reasons of the outbreak were contact with the cases, and low vaccination status. We recommended comprehensive measles vaccination and community awareness sessions. On our recommendations district health authority Islamabad carried out mop up of whole area.


2020 ◽  
Vol 38 (3) ◽  
pp. 145-149
Author(s):  
Md Golam Mustafa ◽  
Md Shahinul Alam ◽  
Md Golam Azam ◽  
Md Mahabubul Alam ◽  
Md Saiful Islam ◽  
...  

Worldwide, hepatitis B virus (HBV) infection is still a major public health problem. Bangladesh having a large burden of HBV infection, should be a major contributor towards it’s elimination by 2030. The country has been making progress in reducing incidence of HBV infection during the past decades. The progresses are mainly due to large vaccination coverage among children and large coverage of timely birthdose vaccine for prevention of mother-to-child transmission of HBV. However, Bangladesh still faces challenges in achieving target of reduction in mortality from HBV. On the basis of targets of the WHO’s Global health sector strategy on viral hepatitis 2016–2021, we highlight priorities for action towards HBV elimination. To attain the target of reduced mortality we propose that, the service coverage targets of diagnosis and treatment should be prioritized along with vaccination. Firstly, improvements are needed in the diagnostic and treatment abilities of medical institutions and health workers. Secondly, the government needs to reduce the costs of health care. Thirdly, better coordination is needed across existing national program and resources to establish an integrated system for prevention, screening, diagnosis and treatment of HBV infection. In this way, we can make progress towards achieving the target of eliminating HBV from Bangladesh by 2030 J Bangladesh Coll Phys Surg 2020; 38(3): 145-149


2020 ◽  
Vol 16 (7) ◽  
pp. 1015-1027
Author(s):  
Mohammad Bagherniya ◽  
Zahra Khorasanchi ◽  
Mina S. Bidokhti ◽  
Gordon A. Ferns ◽  
Mitra Rezaei ◽  
...  

Background: Vitamin D deficiency is a common medical condition worldwide. In Iran, it has been reported that between 30-90% of people have vitamin D deficiency. However, its distribution in different parts of the country and among different age and regional groups is unclear. Therefore, the aim of this study was to review the recent literature on vitamin D deficiency in Iran. Methods: The literature review was performed using Web of Science, PubMed-Medline, Scopus and Scientific Information Database (SID) with a cut-off date of November 2016 to identify articles on vitamin D status in Iran published in the last 10 years. Studies in English and Persian that reported vitamin D levels in male and female subjects of all age groups and in healthy populations were included. Results: From 325 studies that were initially retrieved, 82 articles met the inclusion criteria. A high prevalence of vitamin D deficiency was reported, and in some regions, this was reported as >90% and was found in all age groups and in all regions of Iran. Conclusion: This review highlights the very high prevalence of vitamin D deficiency in Iran. It will be important to recognize the importance of vitamin D deficiency as a major public health problem in Iran.


2019 ◽  
Vol 29 (Supplement_4) ◽  
Author(s):  
J Narusyte ◽  
K Kosidou ◽  
C Dalman

Abstract Background Suicide is a major public health problem. A detailed description of healthcare use prior to suicide can serve to improve prevention strategies. The aim of the study was to describe the patterns of primary, specialized outpatient, and inpatient healthcare use from two weeks and up to one year prior to suicide in Stockholm County. Methods The study population included all 15 year or older suicide victims who died in Stockholm County 2011-2016 (n = 1950) identified through National Cause of Death Registry. Data on number of visits and contacts with healthcare among suicide victims were obtained from VAL healthcare use registry in Stockholm County. Healthcare use was depicted from one year to up to two weeks prior to suicide death. Results Preliminary results showed that there were 65% and 57% of women and men, respectively, who had at least one contact with healthcare during the last two weeks before suicide death. Measured one year prior to suicide, there were 93% of women and 85% of men who had at least one contact with healthcare. Among those who had at least one contact with healthcare two weeks prior to suicide, there were 16% of women and 12% of men who were hospitalized, 55% of women and 47% of men who had a contact with specialized outpatient care, and 32% of women and 27% of men who had a contact with primary healthcare. The proportion of those who did not have any contact with healthcare during the six months prior to suicide decreased gradually with increasing age among men (23% at ages of 15-24 years old and 7% at ages of 65 and older). There were on average 7% of women in all age groups who did not have any contact with healthcare during the six months prior to suicide. Conclusions The majority of the suicide victims had a contact with healthcare during the last year prior to suicide death. The findings suggest that suicide prevention efforts may target improved tools for clinically-based risk assessment. Key messages The majority of the suicide victims had at least one contact with healthcare during the last year prior to suicide death. Those who did not have any contact with healthcare during six months prior to suicide were more likely to be young men.


2021 ◽  
Author(s):  
Amanuel Mulugeta ◽  
Atsede Assefa ◽  
Atsede Eshetie ◽  
Birhanie Asmare ◽  
Meseret Birhanie ◽  
...  

Abstract Background: Malaria is disease caused by plasmodium species and transmitted by the bite of female anopheles mosquito. Globally, it is still the major public health problem that causes morbidity and mortality especially in tropical and sub-tropical African countries including Ethiopia. The objective of this study was to assess the Six year trend of malaria at University of Gondar Specialized Referral Hospital, northwest Ethiopia, from 2014-2019Method: A retrospective study was conducted by reviewing the laboratory registration logbook at University of Gondar Specialized Referral Hospital by using data extraction tool. The data was analysized by SPSS version 20. Descriptive statistics was used to summarize the socio-demographic characteristics of study participants and presented by graphs, tables and texts. The binary logistic regression was also used test the association of trend of malaria and different factors like sex, age, year, and season. Result: From a total 17,500 malaria suspected patients, 1341 (7.7%) were confirmed for malaria and (47.2%), (45.6%) and (7.2%) were P.vivax, P. falciparum and mixed infection, respectively. P.vivax was the predominant species in the first three years and P. falciparum became the predominant species in the last three years. The trend prevalence was showed a fluctuated significantly decrement. It decreased by 68%, 60% and 69% in the year of 2017, 2018 and 2019 compare to 2014, respectively. The positivity rate were significantly higher in the males (1.41 times higher) than females. It was also significantly higher in lower age groups compare to the older age groups (> 54 years old). It was 1.60, 1.64, 2.45 and 1.82 times higher in the age group of < 5, 5-14, 15-24 and 25-54 years old, respectively.Conclusion: There has been a significant declining trend of malaria in the study area. However, it is still a major health problem and requires extra efforts for further reduction. Even, autumn was the season when the highest peak of malaria cases in was observed, there was high fluctuation from year to year. Therefore, control activities should be continued and strengthened manner in the study area considering these variability.


2021 ◽  
Vol 8 ◽  
Author(s):  
Mao-Ling Sun ◽  
Hai-Yun Lai ◽  
Na-Yu Chong ◽  
Dong-Fan Liu ◽  
Zhen-Yi Zhang ◽  
...  

Hepatitis B virus infection is not only a huge burden in the field of social health but also a major public health problem that affects the lives and health of the people. Simple, rapid, feasible detection of HBV is critical for its prevention and spread, especially in the developing countries with low-resource laboratories. To this end, we combined multienzyme isothermal rapid amplification (MIRA) and lateral flow dipstick (LFD) strip to detect HBV. A pair of primers targeting the conserved region of HBV genome was designed and used in MIRA-LFD assay. Our results found that the entire amplification of MIRA-LFD only takes 10 min at 37°C and the dilution of the amplification products was added in the LFD strip and observed by the naked eye after 10 min. The detection sensitivity of this method can reach 10 pg. The 45 clinical samples were detected by MIRA-LFD and real-time PCR. The accuracy rate of MIRA-LFD was 100%. Therefore, these characteristics of our newly developed MIRA-LFD assay make it particularly useful and suitable for detecting HBV in the resource-limited condition.


2021 ◽  
pp. 28-29
Author(s):  
Jayesh Dhananjay Gosavi ◽  
Deppa H Velankar ◽  
Sumedha M Joshi ◽  
Sumit G Wasnik ◽  
Sudarshan Ramaswamy

Background:It is estimated that annually more than 89 lakh children in the country do not receive all vaccines that are available under the UIP– the highest number compared with any other country in the world. Objective: This study was carried out to assess vaccination coverage of children of age group 12 - 23 month residing in the eld practice area of tertiary hospital. Material & methods: This was sectional study conducted at eld practice area of tertiary care hospital during January 2017 to July 2018. Study population was children in the age group 12-23 month. As per WHO norm for identication of sample size for vaccination coverage in study area 30 cluster sampling method is preferred. Results: In the study 188 (89.52%) children were Fully Immunized. 22 (10.48%) children were partially immunized and none of the child was non immunized. overall coverage of BCG was 98.5, for PENTA3 was 96.3%, OPV3 was 96.3% and Measles was 89.8%. Conclusion: Overall immunization coverage in the area is good and higher than the national coverage level. There is no signicant difference in the immunization status of Male and Female children.


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