Displaying publications 21 - 40 of 260 in total

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  1. Rehman IU, Bukhsh A, Khan TM
    Travel Med Infect Dis, 2017 Jul-Aug;18:67-69.
    PMID: 28842213 DOI: 10.1016/j.tmaid.2017.08.002
    World Health Organization (WHO) measles surveillance data report a reduction in cases of measles globally from 67,524 cases in 2015 to 16,846 in 2016, and a reduction in deaths from 546,800 to 114,900 during period of 2000-14. Pakistan is among the five nations where almost a million children did not receive their first dose of measles vaccination, and outbreaks of the disease resulted in 4386 cases in 2011, 14,687 cases in 2012 with 310 deaths. In 2013, about 25,401 cases of measles were reported and 321 affected children died. The measles vaccination coverage is very low in Pakistan for both 1st dose and booster dose. To prevent outbreaks of measles in Pakistan a national vaccination program should be launched side by side with a polio eradication program in each district and township and a campaign should be launched to educate parents on measles vaccination for childrens to reduce the measles case fatality rate.
    Matched MeSH terms: Immunization/statistics & numerical data*
  2. Wan Taib W.R., Tengku M.A., Aryati A., Yusoff N.A.M.
    MyJurnal
    Immunization has been introduced for decades to eradicate fatal infectious diseases by inoculating attenuated, killed or toxoid of microorganisms such as bacteria and virus. The triggering action to the immune system would not harm the host; despite can boost the immune responses to any infection. However, several cases of the eradicated infectious disease have re-emerged due to the existence of vaccine hesitancy group. Vaccine hesitancy has been observed emerging worldwide due to rejection in receiving vaccine. The main obstacle in vaccination program was identified according to the misconception that they received from internet or any mass media without boundaries. Various actions from the government have met the needs to enforce and educate the public especially the hesitant group towards better disease prevention with vaccination. The strategy would cover any interaction activities or programs with the public in transferring the information about the vaccination and its benefit to the health of herd community.
    Matched MeSH terms: Immunization; Immunization Programs
  3. Linn K, Bravo L, Goh DYT, Nelson EAS
    Hum Vaccin Immunother, 2020 07 02;16(7):1476-1484.
    PMID: 31765270 DOI: 10.1080/21645515.2019.1695460
    The 7th Asian Vaccine Conference (ASVAC 2019) was held in Yangon, Myanmar from 13 to 15, September 2019. It brought together stakeholders in the field of vaccination to address challenges and issues relevant to clinical practice and immunization programs in the region. The conference themed "Immunization: sustaining health security in Asia", included pre-conference workshops, a Vaccinology Masterclass, plenary lectures, symposia, and poster presentations. There were over 700 participants ~ 400 local and 300 international from 31 countries ~ and 55 international and local speakers from 19 countries. An Asian EPI managers' meeting was also held on 11-12 September in Naypyidaw, the new capital of Myanmar, and was hosted by the Ministry of Health and Sports, Myanmar with support from World Health Organization, UNICEF and other partners. This inter-regional meeting aimed to strengthen the cooperation and collaboration of EPI Managers and others involved in implementing immunization programs in the region. The conference was organized by the Immunization Partners in Asia Pacific (IPAP) and hosted by Myanmar Pediatric Society and the Ministry of Health and Sports, Myanmar. Other partners included the Confederation of Meningitis Organization, Philippine Foundation of Vaccination, Pediatric Infection Disease Society of the Philippines, Asia Pacific Alliance for the Control of Influenza, PATH, ROTA Council, International Society of Tropical Pediatrics, Asian Society for Pediatric Infection Diseases and other partners. Previous conferences have been held in Siem Reap (2009), Manila (2010), Jakarta (2011), Cebu (2013), Hanoi (2015) and Singapore (2017). The 8th Asian Vaccine Conference will be held in Penang, Malaysia in 2021 to further IPAP's vision of a world where no one suffers from a vaccine-preventable disease.
    Matched MeSH terms: Immunization Programs*
  4. Galadima AN, Zulkefli NAM, Said SM, Ahmad N
    BMC Public Health, 2021 07 28;21(1):1475.
    PMID: 34320942 DOI: 10.1186/s12889-021-11466-5
    BACKGROUND: Vaccine preventable diseases are still the most common cause of childhood mortality, with an estimated 3 million deaths every year, mainly in Africa and Asia. An estimate of 29% deaths among children aged 1-59 months were due to vaccine preventable diseases. Despite the benefits of childhood immunisation, routine vaccination coverage for all recommended Expanded Programme on Immunization vaccines has remained poor in some African countries, such as Nigeria (31%), Ethiopia (43%), Uganda (55%) and Ghana (57%). The aim of this study is to collate evidence on the factors that influence childhood immunisation uptake in Africa, as well as to provide evidence for future researchers in developing, implementing and evaluating intervention among African populations which will improve childhood immunisation uptake.

    METHODS: We conducted a systematic review of articles on the factors influencing under-five childhood immunisation uptake in Africa. This was achieved by using various keywords and searching multiple databases (Medline, PubMed, CINAHL and Psychology & Behavioral Sciences Collection) dating back from inception to 2020.

    RESULTS: Out of 18,708 recorded citations retrieved, 10,396 titles were filtered and 324 titles remained. These 324 abstracts were screened leading to 51 included studies. Statistically significant factors found to influence childhood immunisation uptake were classified into modifiable and non-modifiable factors and were further categorised into different groups based on relevance. The modifiable factors include obstetric factors, maternal knowledge, maternal attitude, self-efficacy and maternal outcome expectation, whereas non-modifiable factors were sociodemographic factors of parent and child, logistic and administration factors.

    CONCLUSION: Different factors were found to influence under-five childhood immunisation uptake among parents in Africa. Immunisation health education intervention among pregnant women, focusing on the significant findings from this systematic review, would hopefully improve childhood immunisation uptake in African countries with poor coverage rates.

    Matched MeSH terms: Immunization*
  5. Hussain Imam Muhammad Ismail
    MyJurnal
    The last confirmed case of poliomyelitis in West Malaysia was in 1986', and over the past few years, we have condescendingly associated polio with other developing countries. Recently, 2 children with acute flaccid paralysis (AFP) were confirmed as cases of poliomyelitis due to a wild strain of the virus. This implies a failure of the immunisation programme to contain the spread of the wild virus (Hall). However, if we look at the WHO standard case definition of polio virus infection (appendix 1) it is possible that we could have missed a few cases over the last 6 years. At this juncture a brief clinical summary of the 2 cases and a discussion of the differential diagnosis may be useful. (Copied from article).
    Matched MeSH terms: Immunization; Immunization Programs
  6. Che Abdullah A, Nor Afiah MZ, Rosliza AM
    MyJurnal
    Vaccine hesitancy among parents has led to re-emergence of vaccine preventable diseases. In Malaysia, measles cases had increased by three times in 2015 compared to previous year. Immunization coverage has always been above 95% since 2009. However, in 2014, Mumps-Measles-Rubella (MMR) coverage has a significant drop to 93.4%. The aim of the study was to identify predictors for inadequate knowledge and negative attitude towards childhood immunization among parents in Hulu Langat, Selangor. A cross sectional study design was conducted from January to July 2016 with 760 respondents. Respondents were selected by cluster random sampling and a validated self-administered questionnaire was used. The majority of respondents were female (70%), Malay (87%), employed (92%) and parents with tertiary education (99.7%). In this study, 12.8% parents have an inadequate knowledge on childhood immunization and 47.6% parents have a negative attitude towards childhood immunization. The predictors for inadequate knowledge on childhood immunizations were last child’s age of 2 years old or more (AOR=1.413 95% CI 0.28-0.69); parents without tertiary education (AOR=2.02 95% CI 1.15-3.54); parents without educational exposure on childhood immunization (AOR=2.87 95% CI 1.59-5.18) and parents who obtained information on childhood immunization from non-healthcare provider (AOR=2.66 95% CI 1.50-4.70). Predictors for negative attitude on childhood immunizations were being male (AOR=1.44 95% CI 1.04-2.01); parents without tertiary education (AOR=1.67 95% CI 1.04-2.68); household income of less than RM5000 (AOR=1.85 95% CI 1.28-2.67) and unsatisfactory religious belief (AOR=2.76 95% CI 2.03-3.75). Therefore, these predictors should be considered in any health intervention on childhood immunizations for parents in Malaysia.
    Matched MeSH terms: Immunization*
  7. Ong MJY, Khoo CS, Lee YX, Poongkuntran V, Tang CK, Choong YJ, et al.
    Epilepsia Open, 2023 Mar;8(1):60-76.
    PMID: 36214033 DOI: 10.1002/epi4.12658
    OBJECTIVE: Epilepsy is a non-communicable disease costing a massive burden globally. It is known that there is increased prevalence of morbidity and mortality following COVID-19 infection among people with epilepsy (PWE). However, there is limited information about the adverse events following COVID-19 immunization among PWE. Hence, this study aimed to assess the safety and adverse events following immunization (AEFI) of various COVID-19 vaccines among PWE from our centre, focusing on neurological AEFI.

    METHODS: This cross-sectional study recruited 120 adult PWE from the Neurology Clinic of the Universiti Kebangsaan Malaysia Medical Centre (UKMMC). Consent-taking was conducted via synchronous or asynchronous approaches, followed by a phone call interview session. The interview collected socio-demographic information, epilepsy-related variables, and vaccination-related variables. Univariate analysis and multiple logistic regression analysis were done to confirm factors associated with the AEFI of COVID-19 vaccination.

    RESULTS: Among all types of COVID-19 vaccines, most of the PWE received the Cominarty® COVID-19 vaccination (52.5%). Overall, local AEFI was the quickest to develop, with an average onset within a day. PWE with normal body mass index (BMI) had a higher risk of developing both local and systemic AEFI compared to those underweight and obese PWE (OR: 15.09, 95% CI 1.70-134.28, P = 0.02).

    SIGNIFICANCE: COVID-19 vaccines are safe for PWE. AEFI among PWE are similar to those of the general population following COVID-19 vaccination. Therefore, clinicians should encourage PWE to take COVID-19 vaccines.

    Matched MeSH terms: Immunization/adverse effects
  8. Ab Rahman N, Lim MT, Lee FY, Wo WK, Yeoh HS, Peariasamy KM, et al.
    Sci Rep, 2023 Nov 22;13(1):20471.
    PMID: 37993548 DOI: 10.1038/s41598-023-47486-x
    This study assessed the association between COVID-19 vaccines, SARS-CoV-2 infection and the risk of thrombocytopenia and venous thromboembolism (VTE). This self-controlled case series study used hospital records between 1st February 2021 and 28th February 2022 linked to the national immunisation registry and COVID-19 surveillance data in Malaysia. Conditional Poisson regression was used to estimate incidence rate ratios (IRR) of events in the risk period (day 1-21 post-exposure) relative to control period with the corresponding 95% confidence interval (CI) adjusted for calendar period. We found no significant increased risk of thrombocytopenia in 1-21 days following BNT162b2, CoronaVac and ChAdOx1 vaccines while the risk was increased following SARS-CoV-2 infection (IRR 15.52, 95% CI 13.38-18.00). Similarly, vaccination with BNT162b2, CoronaVac, or ChAdOx1 was not associated with an increased risk of VTE during the 1-21 days risk period. SARS-CoV-2 infection was associated with increased risk of VTE (IRR 39.84, 95% CI 27.45-32.44). Our findings showed low event rates of thrombocytopenia and VTE following booster vaccination with comparable safety profiles between those who received homologous and heterologous booster combinations. Our findings showed the risk of thrombocytopenia and VTE was not increased after COVID-19 vaccination while the risks were substantially higher after SARS-CoV-2 infection.
    Matched MeSH terms: Immunization, Secondary/adverse effects
  9. Bermawi B, Donastin A, Sari NDK, Kurniasari DW, Adriansyah AA, Ferdiansyah MA, et al.
    Med J Malaysia, 2024 Mar;79(2):124-127.
    PMID: 38553914
    INTRODUCTION: Vaccination is an effective way to overcome the spread of Coronavirus Disease 19 (COVID-19). However, it can give rise to adverse event following immunisation (AEFI). AEFI is an important aspect that is assessed in vaccine safety standards. It is assumed that different vaccine platforms can give rise to different degrees of AEFI severity, but so far there have been no studies that discuss the differences in the degree of AEFI on each type of COVID- 19 vaccine platform.

    AIM: Evaluate the differences in the degree of AEFI on each type of COVID-19 vaccine platform.

    MATERIALS AND METHODS: The research used a quantitative analytical observational design with a cross sectional approach. Data collection from participants was carried out by filling out questionnaires. The collected data was tabulated and statistical analysis was carried out.

    RESULTS: A total of 217 respondents who received three doses of vaccine participated in the study. Of the 651 vaccine doses studied, the results showed that there were significant differences in the degree of AEFI between the three types of vaccine platforms. The degree of AEFI was significantly different (p < 0.05) between each type of vaccine platform, with the degree of AEFI starting from the lowest, namely inactivated vaccine, then viral vector vaccine and the highest was nucleic acid vaccine.

    CONCLUSION: The degree of AEFI differs significantly between each COVID-19 vaccine platform. The degree of AEFI, from the mildest to the most severe, was inactivated vaccine, viral vector vaccine and nucleic acid vaccine. No serious AEFI was reported.

    Matched MeSH terms: Immunization/adverse effects
  10. ISBN: 978-967-13054-0-9
    Citation: Guidelines for Adult Vaccination, Second Edition. Kuala Lumpur: Malaysian Society of Infectious Diseases and Chemotherapy; 2014

    Older version: Guidelines for Adult Vaccination, First Edition. Kuala Lumpur: Malaysian Society of Infectious Diseases and Chemotherapy; 2003
    Keywords: CPG
    Matched MeSH terms: Immunization
  11. Khoo YSK, Ghani AA, Navamukundan AA, Jahis R, Gamil A
    Hum Vaccin Immunother, 2020 03 03;16(3):530-538.
    PMID: 31652090 DOI: 10.1080/21645515.2019.1667206
    This review aims to present the unique considerations for manufacturing and the regulation of new vaccines in Muslim-populated countries such as Malaysia. Our specific objectives are to highlight vaccine production and the ingredients of concern, summarize the current mechanism for ruling and recommendations on new vaccines, outline the different steps in decision-making on incorporating a new vaccine into the National Immunization Program, describe its issues and challenges, and explore the commercial viability and challenges of producing local permissible (halal) vaccines. Through this review, we hope readers understand that alternatives are present to replace ingredients of concern in vaccines. Halal certification and introduction of a new vaccine into a program are strictly conducted and health-care providers must be prepared to educate the public on this. At the same time, it is hoped that the production of halal vaccine in Malaysia will promote self-reliance in Muslim-populated countries.
    Matched MeSH terms: Immunization Programs
  12. Chuah, Soo Lin, Aun, Yiyang, Len, En Yean, Kow, Yun Shi, Chen, Chin Chern, Gan, Chin Seng
    MyJurnal
    Since 1994 to 2009, ascribed by the good coverage of immunization, the incidence of pertussis has been less than 1 in 100,000 populations [1]. Nevertheless, the incidence and prevalence increased tremendously for the past 2 years, i.e. 2014 and 2015.(Copied from article)
    Matched MeSH terms: Immunization
  13. Jafar A, Mapa MT, Sakke N, Dollah R, Joko EP, Atang C, et al.
    Geospat Health, 2022 01 14;17(s1).
    PMID: 35147010 DOI: 10.4081/gh.2022.1037
    The Malaysian government has introduced the National COVID-19 Immunisation Programme (PICK) as a new mechanism to address the transmission of coronavirus disease 2019 (COVID-19). Unfortunately, the number of PICK registrations is still unsatisfactory and is now even lower. The low level of participation of the Sabah (East Malaysia) population significantly impacts the PICK registrations. Therefore, this study aims to identify the factors that cause vaccine hesitancy among the people of Sabah. This study seeks to identify these trends based on zone and district boundaries. A total of 1024 respondents were sampled in this study. Raw data collected through the survey method were analysed using K-means clustering, principal component analysis (PCA), and spatial analysis. The study discovered that factors including confidence, authority, mainstream media, complacency, social media, and convenience are the top causes of vaccine hesitancy among respondents. This study also revealed that the Sabah population's key variables causing vaccine hesitancy to vary by region (zones and districts). The conclusion is significant as a source of supporting data for stakeholders seeking to identify the Sabah population's constraints in each region and therefore, it would help improve PICK management's performance in Sabah.
    Matched MeSH terms: Immunization Programs
  14. Salleh MZ, Norazmi MN, Deris ZZ
    PeerJ, 2022;10:e13083.
    PMID: 35287350 DOI: 10.7717/peerj.13083
    Since the emergence of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the causative agent of coronavirus disease 2019 (COVID-19) in late 2019, hundreds of millions of people have been infected worldwide. There have been unprecedented efforts in acquiring effective vaccines to confer protection against the disease. mRNA vaccines have emerged as promising alternatives to conventional vaccines due to their high potency with the capacity for rapid development and low manufacturing costs. In this review, we summarize the currently available vaccines against SARS-CoV-2 in development, with the focus on the concepts of mRNA vaccines, their antigen selection, delivery and optimization to increase the immunostimulatory capability of mRNA as well as its stability and translatability. We also discuss the host immune responses to the SARS-CoV-2 infection and expound in detail, the adaptive immune response upon immunization with mRNA vaccines, in which high levels of spike-specific IgG and neutralizing antibodies were detected after two-dose vaccination. mRNA vaccines have been shown to induce a robust CD8+T cell response, with a balanced CD4+ TH1/TH2 response. We further discuss the challenges and limitations of COVID-19 mRNA vaccines, where newly emerging variants of SARS-CoV-2 may render currently deployed vaccines less effective. Imbalanced and inappropriate inflammatory responses, resulting from hyper-activation of pro-inflammatory cytokines, which may lead to vaccine-associated enhanced respiratory disease (VAERD) and rare cases of myocarditis and pericarditis also are discussed.
    Matched MeSH terms: Immunization
  15. Nassiri-Ansari T, Atuhebwe P, Ayisi AS, Goulding S, Johri M, Allotey P, et al.
    Lancet, 2022 Jul 02;400(10345):24.
    PMID: 35780789 DOI: 10.1016/S0140-6736(22)01189-8
    Matched MeSH terms: Immunization
  16. Al-Haroni H, Muthanna A, Nasir Mohd Desa M, Azzani M
    Aust J Gen Pract, 2023 Oct;52(10):712-719.
    PMID: 37788693 DOI: 10.31128/AJGP-01-23-6676
    BACKGROUND AND OBJECTIVES: The displacement of populations due to humanitarian emergencies has an adverse impact on the global elimination of vaccine-preventable diseases. However, the level of immunisation coverage among Rohingya refugee children remains unknown. Therefore, this study investigated immunisation coverage and its determinants among Rohingya refugee children in Malaysia.

    METHOD: A cross-sectional study was conducted from September to November 2020 among the guardians of 243 Rohingya refugee children studying under the sponsorship of the King Salman Humanitarian Aid and Relief Center, Malaysia.

    RESULTS: Among the 243 children, 90 (37%) were unimmunised, 147 (60.5%) were partially immunised and only 6 (2.5%) were fully immunised. The country of child's birth, the child's age and access to healthcare services were significantly associated with unimmunisation (all P<0.05).

    DISCUSSION: This study found low immunisation coverage among Rohingya refugee children in Malaysia. Given the low level of coverage, a public health intervention, such as a vaccination program, for this refugee population is necessary.

    Matched MeSH terms: Immunization Programs
  17. Jiee SF, Bondi ME, Emiral ME, Jantim A
    J Prim Care Community Health, 2021;12:21501327211029800.
    PMID: 34218701 DOI: 10.1177/21501327211029800
    BACKGROUND: Polio Supplementary Immunization Activities (SIAs) were carried out in the State of Sabah in response to the Vaccine Derived Poliovirus outbreak declared in December 2019. Prior to this, Malaysia had been polio-free over the past 27 years. This paper reported on the successful implementation of SIAs in the district of Penampang, Sabah, adapting (vaccine administration) to the COVID-19 pandemic.

    METHODS: A series of meticulous planning, healthcare staff training, advocacy, and community engagement activities were conducted by the Penampang District Health Office. Bivalent Oral Polio Vaccine (bOPV) and monovalent Oral Polio Vaccine were administered over the period of 1 year via these methods: house to house, drive-through, static, and mobile posts. The targeted group was 22 096 children aged 13 years and below.

    RESULTS: Polio SIAs in Penampang managed to achieve more than 90% coverage for both bOPV and mOPV. The overall vaccine wastage was reported to be 1.63%. No major adverse reaction was reported.

    CONCLUSION: High vaccine uptake during Polio SIAs in Penampang was attributed to good inter-agency collaboration, community engagement, intensified health promotion activities, and drive-through vaccination campaign.

    Matched MeSH terms: Immunization
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