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Fulltext Sociodemographic and health care factors in determining immunization defaulters among preschool children in Petaling District, Selangor: a cross-sectional study in Malaysia

Krishna D, Mohd Zulkefli NA, Md Said S, Mahmud A

BMC Public Health, 2019 Sep 18;19(1):1275.
PMID: 31533790 DOI: 10.1186/s12889-019-7561-z

BACKGROUND: Immunization is an effective public health intervention to reduce morbidity and mortality among children and it will become more effective if the child can receive the full course of recommended immunization doses. The objective of this study was to determine the prevalence of childhood immunization defaulters and its associated factors among children below 5 years attending registered child care centers in Petaling District, Selangor.
METHODS: This was a cross-sectional survey among mothers with children below 5 years from 60 registered child care centers in District of Petaling, Selangor. Data was collected by a self-administered questionnaire from a total of 1015 mothers. Simple Logistic Regression, Chi-square or Fisher's exact test were performed to determine the association between individual categorical variables and childhood immunization defaulters. Multivariate logistic regression was used to determine the predictors of childhood immunization defaulters.
RESULTS: The study showed that the prevalence rate for defaulting immunization was 20.7%. After adjusting all confounders, six statistically significant predictors of childhood immunization defaulters were determined. They were non-Muslims (aOR = 1.669, 95% CI = 1.173, 2.377, p = 0.004), mothers with diploma and below educational background (aOR = 2.296, 95% CI = 1.460, 3.610, p

Matched MeSH terms: Immunization/statistics & numerical data*; Immunization Schedule; Immunization Programs/statistics & numerical data*
Influence of health providers on pediatrics' immunization rate

Al-lela OQ, Baidi Bahari M, Al-abbassi MG, Salih MR, Basher AY

J Trop Pediatr, 2012 Dec;58(6):441-5.
PMID: 22538210 DOI: 10.1093/tropej/fms014

To identify the immunization providers' characteristics associated with immunization rate in children younger than 2 years. A cohort and a cluster sampling design were implemented; 528 children between 18 and 70 months of age were sampled in five public health clinics in Mosul-Iraq. Providers' characterizations were obtained. Immunization rate for the children was assessed. Risk factors for partial immunization were explored using both bivariate analyses and multi-level logistic regression models. Less than half of the children had one or more than one missed dose, considered as partial immunization cases. The study found significant association of immunization rate with provider's type. Two factors were found that strongly impacted on immunization rate in the presence of other factors: birthplace and immunization providers' type.

Matched MeSH terms: Immunization/utilization; Immunization/statistics & numerical data*; Immunization Schedule; Immunization Programs/organization & administration*
Fulltext Risk factors associated with incomplete immunisation in hospitalised infants

Norlijah O, Menon BS, Azlyna MYY

Med J Malaysia, 2005 Dec;60(5):563-9.
PMID: 16515106

To determine the immunisation status of hospitalised infants and to examine the potential risk factors associated with incomplete immunisation. Prospective study of infants admitted to a paediatric hospital in Kuala Lumpur, conducted by interviewing carers. Twenty-two percent of infants had incomplete immunisation. The most significant factor that was associated with incomplete immunisation was the carer's lack of knowledge on the timing of the next immunisation (p = 0.005). Other factors that had significant association were the presence of a previous admission to hospital (p = 0.03) and the infant's age of more than 6 months (p = 0.025). The rate of incomplete immunisation in the study population was 22%. An admission to hospital of an infant should be taken as an opportunity to update their immunisation in order to improve the rate of uptake.

Matched MeSH terms: Immunization*
Fulltext Atopic sensitization of children with rhinitis in Malaysia

Gendeh BS, Mujahid SH, Murad S, Rizal M

Med J Malaysia, 2004 Oct;59(4):522-9.
PMID: 15779586 MyJurnal

Atopy is defined as the genetic propensity to develop immunoglobulin E antibodies in response to exposure to allergens and assessed by skin prick test (SPT) responses to common allergens, which may contribute to the development of the clinical disorders (phenotype). Although it is generally agreed that atopy is an important risk factor for allergic diseases such as asthma, rhinitis, and eczema, the extent to which atopy accounts for these diseases is controversial. One hundred forty one children (up to 12 years) were skin prick tested to evaluate 16 foods common to the Malaysian diet and 4 common aeroallergens. Eighty-five percent of patients had positive SPT reactivity. The most commonly implicated aeroallergen and food allergen was house dust mite (HDM) and Prawn. Seventy percent had positive SPT reactivity results to HDM and 24.8% to prawns. Fifty five percent were positive to more than one allergen and 17.7% positive to single aeroallergen. The prevalence of atopy in children with history of eczema was 90%. The incidence of HDM and food allergy especially crabs and prawns, is significantly greater in Malaysian Children with rhinitis symptoms.

Matched MeSH terms: Immunization*
Fulltext Adult Immunization - Need of the Hour

Jairaj A, Shirisha P, Abdul MSM, Fatima U, Tiwari RVC, Moothedath M

J Int Soc Prev Community Dent, 2018 11 29;8(6):475-481.
PMID: 30596036 DOI: 10.4103/jispcd.JISPCD_347_18

Immunization is the process of making individuals immune. Childhood immunization is a common process for various aliments, but adult immunization in the Indian scenario is obscure. Officially, India has been declared polio-free, which is an achievement despite cultural, political, economic, geographic, and so many other factors. The changing demographics of adult, geriatric population and growing cost of health-care maintenance are a concern in developing countries like India. Thus, promoting healthy lifestyle needs prevention, early detection, and management of various diseases and disorders. Certainly, prevention in adults is yet to be tapped completely, so that goal of 100% prevention can be achieved. Various fraternities of medical association have come up with guidelines for adult immunization schedules in India. The present paper reviews infectious diseases such as anthrax, chikungunya, cholera, dengue, influenza, and malaria in this section of the review. We humbly request all health-care professionals and educators to educate the mass for adult immunization. So that, cost involved for treatment and workforce for the management of diseases can be better utilized in some other needed areas.

Matched MeSH terms: Immunization; Immunization Schedule
Fulltext A pan-specific antiserum produced by a novel immunization strategy shows a high spectrum of neutralization against neurotoxic snake venoms

Ratanabanangkoon K, Tan KY, Pruksaphon K, Klinpayom C, Gutiérrez JM, Quraishi NH, et al.

Sci Rep, 2020 07 09;10(1):11261.
PMID: 32647261 DOI: 10.1038/s41598-020-66657-8

Snakebite envenomation is a neglected tropical disease of high mortality and morbidity largely due to insufficient supply of effective and affordable antivenoms. Snake antivenoms are mostly effective against the venoms used in their production. It is thus crucial that effective and affordable antivenom(s) with wide para-specificity, capable of neutralizing the venoms of a large number of snakes, be produced. Here we studied the pan-specific antiserum prepared previously by a novel immunization strategy involving the exposure of horses to a 'diverse toxin repertoire' consisting of 12 neurotoxic Asian snake toxin fractions/ venoms from six species. This antiserum was previously shown to exhibit wide para-specificity by neutralizing 11 homologous and 16 heterologous venoms from Asia and Africa. We now show that the antiserum can neutralize 9 out of 10 additional neurotoxic venoms. Altogether, 36 snake venoms belonging to 10 genera from 4 continents were neutralized by the antiserum. Toxin profiles previously generated using proteomic techniques of these 36 venoms identified α-neurotoxins, β-neurotoxins, and cytotoxins as predominant toxins presumably neutralized by the antiserum. The bases for the wide para-specificity of the antiserum are discussed. These findings indicate that it is feasible to generate antivenoms of wide para-specificity against elapid neurotoxic venoms from different regions in the world and raises the possibility of a universal neurotoxic antivenom. This should reduce the mortality resulting from neurotoxic snakebite envenomation.

Matched MeSH terms: Immunization*
Fulltext Determinants of childhood vaccination in Nagaland, India: a cross-sectional study with multilevel modelling

Kim YE

BMJ Open, 2021 04 14;11(4):e045070.
PMID: 33853801 DOI: 10.1136/bmjopen-2020-045070

OBJECTIVES: Childhood vaccination coverage in Nagaland has lagged almost all states in India for more than two decades. This study aims to find drivers and barriers of childhood vaccination in Nagaland from the perspective of demand, supply and local health governance.
DESIGN: A cross-sectional study was designed using a survey conducted by the Directorate of Health and Family in 2015.
SETTING: Households, community-based health centres and health committees were surveyed.
PARTICIPANTS: 285 children aged under 2 years with vaccination cards and data on households, health centres and health committees were included.
OUTCOMES: Variables indicating whether a child received each of bacillus calmette-guérin (BCG), diphtheria-tetanus-pertussis (DTP3), oral polio (OPV3) and measles vaccination and all of them were outcome variables. Associated factors were identified using multilevel logistic regressions.
RESULTS: Antenatal care at least three times was significantly associated with BCG, DTP3, OPV3 and full vaccination with adjusted ORs ranging from 2.4 (95% CI 1.1 to 5.1) to 3.3 (1.1 to 9.9). The availability of bus to health centre was slightly significant for BCG and OPV3 with the adjusted ORs of 2.0 (0.9 to 4.5) and 2.1 (0.9 to 4.8), respectively. Health committees' budget provision to health centres was significant for OPV3 and full vaccination with the respective adjusted ORs of 15.7 (1.0 to 234.1) and 15.9 (1.2 to 214.7), the wide 95% CIs of which were driven by a small sample size. Health committees' review of expenditure of health centres was significant for measles and full vaccination with the adjusted ORs of 4.0 (1.4 to 11.4) and 5.2 (1.4 to 19.4), respectively.
CONCLUSION: This study suggests that enhancing the utilisation of antenatal care and providing reliable transportation between villages and health centres are required to improve childhood vaccination coverage. Also, the significant association of budget administration of health committees suggests that supporting local health committees for effective financial management is important.

Matched MeSH terms: Immunization Programs*
The immunisation status of some preschool children in a new village in West Malaysia

San SF

Med J Malaya, 1971 Dec;26(2):90-3.
PMID: 4260866
Matched MeSH terms: Immunization Schedule*
The improvement of immunization status in children attending child health clinics

Pathmanathan I

J Trop Med Hyg, 1973 Nov;76(11):294-6.
PMID: 4758753

The Municipal Maternal and Child Health Clinics at Kuala Lumpur were faced with a declining but continuing problem of diphtheria. The arrangements for immunization were such that a low coverage was obtained for triple vaccination, but a high one for smallpox, a disease they had not experienced for many years. By reversing the schedule, so that triple vaccine injections were administered first, and ensuring that fewer children were not immunized because of concurrent minor ailments, the diphtheria immunization coverage was greatly improved. There was some loss of smallpox cover.
The revision commenced in 1970 and the diphtheria incidence rate, which had been falling since 1965, continued to fall but at a lower rate. The author does not discuss possible explanations for this. The article illustrates a dramatic improvement in immunization cover by a simple re-arrangement better suited to the needs of the town

Matched MeSH terms: Immunization Schedule*
Fulltext Adherence towards different vaccines of childhood immunization of under five year old children

Zamzaireen Zainal Abidin, Muhamad Hanafiah Juni, Faisal Ibrahim

Malaysian Journal of Medicine and Health Sciences, 2017;13(3):61-69.
MyJurnal

Introduction: Adherence towards childhood immunization (completeness and timeliness), with consideration of age-dependent-seroconversion, is the basis for children protection. Despite high global and national immunization coverage, vaccine preventable diseases’ are rising. This study aimed to determine adherence (completeness and timeliness) towards different vaccines of childhood immunization and associated factors among mothers of under five children. Methods: Cross-sectional study design was conducted at a health clinic in Seremban. Total of 320 mothers of under five children attending child health clinic selected via systematic random sampling. Data collection was via validated self-administered questionnaires and proforma, analysed using SPSS version 22. Associations between categorical variables determined by chi-square tests. Results: Consented respondents were 314; resulting in response rate of 98.1%. Adherence (completeness) was 98.09% but only 56.5% - 97.1% of respondents adhered in terms of timeliness. Types of transportation was significantly associated with adherence (completeness), p=0.041. Employment status was significantly associated with adherence (timeliness) towards BCG (p=0.008), Hepatitis B dose one (p=0.018) and dose two (p=0.040) vaccines. Education level was significantly associated with adherence (timeliness) towards DTaP/IPV/HiB dose four (p=0.019). Maternal age and usage of government clinic were significantly associated with adherence (timeliness) of MMR dose one, p=0.030 and p=0.017 respectively. Conclusion: Adherence (completeness) was high but varying adherence towards vaccine timeliness. Transportation types associated with completeness. Employment status associated with BCG, first and second doses of Hepatitis B vaccines’ timeliness. Education level associated with fourth dose of DTaP/IPV/HiB. Maternal age and usage of government clinic associated with timeliness of first dose MMR.

Matched MeSH terms: Immunization*
Fulltext Using TelePrimary Care to monitor immunization status in Sarikei Health Clinic, Sarikei, Sarawak

Lai BF, Safii R, Nyulang L, Dunggau C, Riffin MA, Khu FM, et al.

Int J Public Health Res, 2011;1(2):237-241.
MyJurnal

Introduction The purpose of this paper is to demonstrate the effectiveness of using TelePrimary Care (TPC) to monitor immunization programmed in a clinic. Japanese Encephalitis (JE) vaccination was selected as an example because its coverage has not been satisfactory when compared to that of other vaccinations, which generally exceed 90%.
Methods Data for all children who were eligible for JE vaccination (age range from 9 months to 30 months) who attended Sarikei Health Clinic between 1 January 2007 till 31 June 2008, was extracted from the TPC database and analyzed for completeness and timeliness of JE vaccination.
Results The analysis showed that although 1,243 children were eligible to receive their first dose of J vaccine at 9 months of age, only 560 (45%) received it. 15 (3%) received on time, and 545 (97%) received it late (age range from 10 months to 20 months). Out of the 560 who were scheduled to receive their second dose of JE vaccine four weeks after the first, 382 (88%) received it on time, and 55 (12%) received it late. Only 78 (18%) out of 429 children aged between 18 months to 24 months received their booster dose; 52 (67%) received it on time and 26 (33%) received it late.TPC not only enables health staff to monitor immunization coverage and timeliness accurately, but it also helps them to identify defaulters quickly so that these children can be traced and immunized. Doing these tasks manually is time-consuming and tedious, leading to delays in tracing defaulters.
Conclusions TPC provides an effective system for staff to easily access real time child health data to monitor and audit their immunization programme and take remedial action where necessary.
Study site: Klinik Kesihatan Sarikei, Sarawak, Malaysia

Matched MeSH terms: Immunization; Immunization Programs
Fulltext Incorporating an immunization course in the pharmacy curriculum: Malaysian experience

Al-lela OQ, Bahari MB, Elkalmi RM, Jawad Awadh AI

Am J Pharm Educ, 2012 Dec 12;76(10):206.
PMID: 23275671 DOI: 10.5688/ajpe7610206
Matched MeSH terms: Immunization*
Fulltext COVID-19 vaccination campaign in Nepal, emerging UK variant and futuristic vaccination strategies to combat the ongoing pandemic

Sah R, Khatiwada AP, Shrestha S, Bhuvan KC, Tiwari R, Mohapatra RK, et al.

Travel Med Infect Dis, 2021;41:102037.
PMID: 33781945 DOI: 10.1016/j.tmaid.2021.102037

With the emergence of the new variants of concern (VOC) of the SARS-CoV-2, the efficacy of certain vaccines against them requires further research and considerations for future scenarios of COVID-19 vaccination. The vaccines' lack of efficacy against VOC will pose at risk to the vaccinated population and is a public health threat. In this commentary, we discuss Nepal's recent experiences and expectations regarding the confirmation of VOC B.1.1.7 from the United Kingdom in the country.

Matched MeSH terms: Immunization Programs/methods*
Vaccination in Southeast Asia--reducing meningitis, sepsis and pneumonia with new and existing vaccines

Richardson A, Morris DE, Clarke SC

Vaccine, 2014 Jul 16;32(33):4119-23.
PMID: 24907487 DOI: 10.1016/j.vaccine.2014.05.062

Streptococcus pneumoniae, Haemophilus influenzae type b and Neisseria meningitidis are leading causes of vaccine-preventable diseases such as meningitis, sepsis and pneumonia. Although there has been much progress in the introduction of vaccines against these pathogens, access to vaccines remains elusive in some countries. This review highlights the current S. pneumoniae, H. influenzae type b, and N. meningitidis immunization schedules in the 10 countries belonging to the Association of Southeast Asian Nations (ASEAN). Epidemiologic studies may be useful for informing vaccine policy in these countries, particularly when determining the cost-effectiveness of introducing new vaccines.

Matched MeSH terms: Immunization Schedule*; Immunization Programs/economics*
Epitope-based vaccine as a universal vaccination strategy against Toxoplasma gondii infection: A mini-review

Hajissa K, Zakaria R, Suppian R, Mohamed Z

J Adv Vet Anim Res, 2019 Jun;6(2):174-182.
PMID: 31453188 DOI: 10.5455/javar.2019.f329

Despite the significant progress in the recent efforts toward developing an effective vaccine against toxoplasmosis, the search for new protective vaccination strategy still remains a challenge and elusive goal because it becomes the appropriate way to prevent the disease. Various experimental approaches in the past few years showed that developing a potential vaccine against the disease can be achievable. The combination of multi-epitopes expressing different stages of the parasite life cycle has become an optimal strategy for acquiring a potent, safe, and effective vaccine. Epitope-based vaccines have gained attention as alternative vaccine candidates due to their ability of inducing protective immune responses. This mini-review highlights the current status and the prospects of Toxoplasma gondii vaccine development along with the application of epitope-based vaccine in the future parasite immunization as a novel under development and evaluation strategy.

Matched MeSH terms: Immunization
Fulltext Current perspectives and challenges of primary immunodeficiency disease in Malaysia

Intan Juliana Abd Hamid, Zarina Thasneem Zainudeen, Ilie Fadzilah Hashim

Malaysian Journal of Paediatrics and Child Health, 2019;25(2):1-6.
MyJurnal

Primary immunodeficiency disease (PID) or inborn error of immunity is a heterogeneous group of inherited diseases affecting the immune system resulting in increased susceptibility to infections, immune dysregulation, autoimmune manifestations, lymphoproliferation and malignancy. Cases of PIDs have been reported in Malaysia since 1977 and the numbers of reported cases steadily increased for the past 30 years with more trained clinical immunologist available, better immunodiagnostic facilities, wider immunoglobulin replacement therapy availability and improved techniques in haematopoietic stem cell transplantation for PIDs. In this article, we highlight some of the limitations and challenges in the diagnosis and therapy of PID, and more recent efforts to establish PID services in Malaysia.

Matched MeSH terms: Immunization, Passive
Fulltext Immunisation status in hospitalised infants: reasons for incomplete immunisation

Norlijah O, Menon BS, Azlyna Nur Yanty MY, Noranida S

Malaysian Journal of Medicine and Health Sciences, 2005;1(1):51-59.

Objective: Immunisation is known to be an effective health intervention that protects children from infectious diseases. Of all children, infants are the most vulnerable if they experience a vaccine preventable disease. The aim of the study was to determine the immunisation status of hospitalised infants, to obtain the reasons of incomplete immunisation and to assess carers' knowledge on immunisation.
Methods: This was a cross-sectional study conducted in the Institute of Paediatrics at Hospital Kuala Lumpur over a 2-month period from June to August 2001. Data were collected through an interview using a structured questionnaire, with the carer of the infant. Questions pertaining to the immunisation status of the infant, reasons of incomplete immunisation and the carer's knowledge of immunisation were assessed.
Results: 115 infants were admitted during the study period; however, only 100 carers of the infants were available for an interview. The average age of the infants was 5.7 months. 22% of the infants had incomplete immunisation. 64% of them had missed more than one vaccine. The commonest missed vaccine was the 3'4 dose of diptheria-pertussistetanus (DP1) and polio vaccine. Reasons of incomplete immunisation include misconception on contraindication of immunisation perceived by both parents and health providers, missed appointment and communication breakdown with health facilities regarding appointment dates. The under-immunisation rate in the study population was 22%. The underimmunisation rate in the study population was 22%.
Conclusion: Health providers and the public need to be educated on the importance of immunisation and the associated valid contraindications.
Keywords: Infants, carer, under-immunisation, incomplete immunisation

Matched MeSH terms: Immunization
Immunisation services: maternal and child health clinic of City Hall, Kuala Lumpur

George J

Family Practitioner, 1988;11(1):71-72.

Matched MeSH terms: Immunization
Parents' attitude, awareness and behaviour towards influenza vaccination in Pakistan

Bukhsh A, Rehman H, Mallhi TH, Ata H, Rehman IU, Lee LH, et al.

Hum Vaccin Immunother, 2018 04 03;14(4):952-957.
PMID: 29333939 DOI: 10.1080/21645515.2017.1415686

National immunization program of Pakistan does not include Influenza vaccines. The low rate of immunization might be attributed to the poor knowledge of influenza vaccination in Pakistan. Current study was aimed to assess the knowledge and attitude of influenza vaccination among parents. A questionnaire-based cross sectional study was conducted among randomly selected parents with at least one child aged >6 months. The responses were recorded against 27 items questionnaire assessing knowledge, perception, attitude and behaviours of parents. Data were analysed by using appropriate statistical methods. A total 532 responses were recorded with male gender preponderance (65%). Most of the parents (61.1%) reported that their children had received or planned to receive all recommended vaccines in Expanded Program on Immunization (EPI) of Pakistan. Only one third of the parents (24.4%) were aware of the availability of influenza vaccines in Pakistan, and very few (6.6%) reported vaccinating their child against influenza. Exploring the parents' attitudes regarding children vaccination, the top motivator was 'immunization is important to keep my children healthy' (relative index = 0.93, p < 0.000). However, substantial number of parents believed that influenza is not a serious disease (18.5%) and vaccines are accompanied by several side effects (24.6%). A positive attitude was reflected among parents who were aware of influenza vaccines in Pakistan. About 35% participants believed that influenza vaccines are not required for healthy children. Current study demonstrated very low vaccination rate against influenza. Awareness and health literacy regarding influenza vaccine is poor among parents. These findings necessitate the need to appropriately structured awareness programs regarding influenza vaccination among parents.

Matched MeSH terms: Immunization/psychology; Immunization Programs/methods
Fulltext Acceptance of COVID-19 Vaccine Booster Doses Using the Health Belief Model: A Cross-Sectional Study in Low-Middle- and High-Income Countries of the East Mediterranean Region

Ghazy RM, Abdou MS, Awaidy S, Sallam M, Elbarazi I, Youssef N, et al.

Int J Environ Res Public Health, 2022 Sep 25;19(19).
PMID: 36231447 DOI: 10.3390/ijerph191912136

Coronavirus disease (COVID-19) booster doses decrease infection transmission and disease severity. This study aimed to assess the acceptance of COVID-19 vaccine booster doses in low, middle, and high-income countries of the East Mediterranean Region (EMR) and its determinants using the health belief model (HBM). In addition, we aimed to identify the causes of booster dose rejection and the main source of information about vaccination. Using the snowball and convince sampling technique, a bilingual, self-administered, anonymous questionnaire was used to collect the data from 14 EMR countries through different social media platforms. Logistic regression analysis was used to estimate the key determinants that predict vaccination acceptance among respondents. Overall, 2327 participants responded to the questionnaire. In total, 1468 received compulsory doses of vaccination. Of them, 739 (50.3%) received booster doses and 387 (26.4%) were willing to get the COVID-19 vaccine booster doses. Vaccine booster dose acceptance rates in low, middle, and high-income countries were 73.4%, 67.9%, and 83.0%, respectively (p < 0.001). Participants who reported reliance on information about the COVID-19 vaccination from the Ministry of Health websites were more willing to accept booster doses (79.3% vs. 66.6%, p < 0.001). The leading causes behind booster dose rejection were the beliefs that booster doses have no benefit (48.35%) and have severe side effects (25.6%). Determinants of booster dose acceptance were age (odds ratio (OR) = 1.02, 95% confidence interval (CI): 1.01-1.03, p = 0.002), information provided by the Ministry of Health (OR = 3.40, 95% CI: 1.79-6.49, p = 0.015), perceived susceptibility to COVID-19 infection (OR = 1.88, 95% CI: 1.21-2.93, p = 0.005), perceived severity of COVID-19 (OR = 2.08, 95% CI: 137-3.16, p = 0.001), and perceived risk of side effects (OR = 0.25, 95% CI: 0.19-0.34, p < 0.001). Booster dose acceptance in EMR is relatively high. Interventions based on HBM may provide useful directions for policymakers to enhance the population's acceptance of booster vaccination.

Matched MeSH terms: Immunization, Secondary

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