1,489 results match your criteria Travel Medicine and Vaccination


Factors associated with the opposition to COVID-19 vaccination certificates: A multi-country observational study from Asia.

Travel Med Infect Dis 2022 May 17:102358. Epub 2022 May 17.

Health Intervention and Technology Assessment Program (HITAP), 6th Floor, 6th Building, Department of Health, Ministry of Public Health, Tiwanon Road, Nonthaburi, 11000, Thailand; Saw Swee Hock School of Public Health (SSHSPH), National University of Singapore (NUS), 12 Science Drive 2, #10-01, 117549, Singapore.

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COVID-19 Vaccination Preferences of University Students and Staff in Hong Kong.

JAMA Netw Open 2022 May 2;5(5):e2212681. Epub 2022 May 2.

Centre for Safe Medication Practice and Research, Department of Pharmacology and Pharmacy, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China.

Importance: COVID-19 has required universities to rapidly develop vaccination policies for students and staff, yet little is known about the preferences of these individuals toward vaccination.

Objective: To quantify student and staff preferences for COVID-19 vaccination at a university in Hong Kong.

Design, Setting, And Participants: A cross-sectional online survey study was conducted from July 20 to September 21, 2021, before the announcement of a campus-wide vaccine mandate. Read More

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Persistence of antibodies, boostability, and interchangeability of Japanese encephalitis vaccines: A systematic review and dose-response meta-analysis.

Vaccine 2022 May 11. Epub 2022 May 11.

UQ Centre for Clinical Research, Faculty of Medicine, The University of Queensland, Herston, Australia. Electronic address:

Background: The burden of Japanese encephalitis (JE) is substantial and is arguably one of the most serious viral encephalitic diseases with high case fatality and no specific treatment. JE vaccines are the only available mean to prevent the disease; however, the long-term persistence of antibodies, boostability, and interchangeability between different vaccine classes are not well understood.

Methods: To summarise the evidence, PubMed, Embase, and Cochrane CENTRAL were systematically searched from their inception to March 2021. Read More

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Nonpharmaceutical public health interventions to curb the COVID-19 pandemic: a narrative review.

J Infect Dev Ctries 2022 Apr 30;16(4):583-591. Epub 2022 Apr 30.

Department of Medicine, University of Ribeirão Preto, Brazil.

Nonpharmaceutical Interventions (NPI) consist of compulsory (isolation, quarantine, stay-at-home orders, banning public gatherings, nonessential business closures, school closures), and voluntary (social distancing, handwashing, respiratory etiquette, and universal mask wearing) measures. The aim of this narrative review is to evaluate the different forms of NPI and their effectiveness in combating the pandemic. Isolation can be indicated for symptomatic and asymptomatic infected people at home or at hospitals depending on the patient's clinical picture. Read More

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Severe Acute Respiratory Syndrome Coronavirus 2 and Blood Safety: An Updated Review.

Transfus Med Hemother 2022 Mar 23;5:1-11. Epub 2022 Mar 23.

Clinical Services and Research, Australian Red Cross Lifeblood, Melbourne, Victoria, Australia.

Background: Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is a novel human coronavirus first identified in late 2019 and subsequently declared a worldwide pandemic in March 2020. In this review, we provide an overview of the implications of SARS-CoV-2 for blood safety and sufficiency.

Summary: Approximately one-third of SARS-CoV-2 infections are asymptomatic. Read More

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Breakthrough SARS-CoV-2 infections after COVID-19 mRNA vaccination in MS patients on disease modifying therapies during the Delta and the Omicron waves in Italy.

EBioMedicine 2022 May 5;80:104042. Epub 2022 May 5.

Neuromuscular and Neuroimmunology Service, IRCCS Humanitas Research Hospital, Rozzano, Italy.

Background: In this study we aimed to monitor the risk of breakthrough SARS-CoV-2 infection in patients with MS (pwMS) under different DMTs and to identify correlates of reduced protection.

Methods: This is a prospective Italian multicenter cohort study, long-term clinical follow-up of the CovaXiMS (Covid-19 vaccine in Multiple Sclerosis) study. 1855 pwMS scheduled for SARS-CoV-2 mRNA vaccination were enrolled and followed up to a mean time of 10 months. Read More

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Hyper inflammatory syndrome following COVID-19 mRNA vaccine in children: A national post-authorization pharmacovigilance study.

Lancet Reg Health Eur 2022 Apr 29:100393. Epub 2022 Apr 29.

Hospices Civils de Lyon, Paediatric Nephrology, Rheumatology, Dermatology, Hopital Femme, Mère Enfant and Centre International de Recherche en Infectiologie / INSERM U1111, Bron, France.

Background: Multisystem inflammatory syndrome in children (MIS-C) is the most severe clinical entity associated with pediatric SARS-CoV-2 infection with a putative role of the spike protein into the immune system activation. Whether COVID-19 mRNA vaccine can induce this complication in children is unknown. We aimed to assess the risk of hyper-inflammatory syndrome following COVID-19 mRNA vaccine in children. Read More

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Poor Uptake of MMR Vaccine 1-year Post-Measles Outbreak: New York City and Israel.

J Pediatric Infect Dis Soc 2022 Apr 27. Epub 2022 Apr 27.

Department of Pediatrics, Division of Pediatric Infectious Diseases, New York University Grossman School of Medicine, New York, New York, USA.

Background: In 2018-2019, large outbreaks of measles occurred in Israel and in New York City, driven in part by travel of unimmunized children between the 2 communities.

Methods: A retrospective chart review was conducted for children tested for measles (March 2018-September 2019) at NYU Langone Health in New York, NY, and in Ramla subdistrict, Israel. Vaccination records were reviewed to determine vaccination status for measles, mumps, and rubella (MMR) at the time of measles testing and 1-year post-testing. Read More

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Aviator Occupational Behavior Surrounding COVID-19 Infection and Vaccination in the United States: A Cross-Sectional Population-Based Survey.

Cureus 2022 Mar 22;14(3):e23406. Epub 2022 Mar 22.

Department of Neurology, Brooke Army Medical Center, San Antonio, USA.

Introduction The coronavirus disease 2019 (COVID-19) pandemic has precipitated change across the aviation industry, including aeromedical standards. U.S. Read More

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Outcomes of single dose COVID-19 vaccines: Eight month follow-up of a large cohort in Saudi Arabia.

J Infect Public Health 2022 May 6;15(5):573-577. Epub 2022 Apr 6.

Assistant Agency for Preventive Health, Ministry of Health, Riyadh, Saudi Arabia.

Background: Two vaccines for COVID-19 have been approved and administered in the Kingdom of Saudi Arabia (KSA); Pfizer-BioNtech BNT162b2 and AstraZeneca-Oxford AZD1222 vaccines. The purpose of this study was to describe the real-world data on the outcome of single dose of these COVID-19 vaccines in a large cohort in KSA and to analyse demographics and co-morbidities as risk factors for infection post one-dose vaccination.

Methods: In this prospective cohort study, a total of 18,543 subjects received one dose of either of the vaccines at a vaccination centre in KSA, and were followed up for three to eight months. Read More

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Pentavalent vaccination in Kenya: coverage and geographical accessibility to health facilities using data from a community demographic and health surveillance system in Kilifi County.

BMC Public Health 2022 04 25;22(1):826. Epub 2022 Apr 25.

Department of Population Health, Aga Khan University, Nairobi, Kenya.

Background: There is substantial evidence that immunization is one of the most significant and cost-effective pillars of preventive and promotive health interventions. Effective childhood immunization coverage is thus essential in stemming persistent childhood illnesses. The third dose of pentavalent vaccine for children is an important indicator for assessing performance of the immunisation programme because it mirrors the completeness of a child's immunisation schedule. Read More

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COVID-19 Vaccine Booster Hesitancy (VBH) and Its Drivers in Algeria: National Cross-Sectional Survey-Based Study.

Vaccines (Basel) 2022 Apr 15;10(4). Epub 2022 Apr 15.

Department of Public Health, Faculty of Medicine, Masaryk University, 625 00 Brno, Czech Republic.

Due to the emergence of various highly contagious variants of SARS-CoV-2, vaccine boosters were adopted as a complementary strategy in different countries. This strategy has, however, posed another challenge for the national authorities to convince their population to receive the booster after the first challenge of COVID-19 primer dose vaccines. This study was conducted to determine COVID-19 vaccine booster acceptance and its associated factors in the general population in Algeria. Read More

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Congenital asplenia study: clinical and laboratory characterisation of adults with congenital asplenia.

Ann Hematol 2022 Apr 22. Epub 2022 Apr 22.

Monash Infectious Diseases, Monash Health, Victoria, Australia.

Congenital asplenia is a rare disorder commonly associated with other visceral and cardiac congenital anomalies. Isolated congenital asplenia is even less common than syndromic forms. The risk of severe bacterial infections associated with asplenia is the most concerning clinical implication and carries a significant mortality risk. Read More

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Incidence of dengue fever in Israeli travelers 2008-2019.

Travel Med Infect Dis 2022 Apr 18;48:102330. Epub 2022 Apr 18.

From the Center for Geographic Medicine and Department of Medicine C, Israel; The Sheba Medical Center, Tel Hashomer, The Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel.

Background: Dengue virus (DENV) is a frequent travel-related infection, but longitudinal data on its incidence is limited. We aimed to study temporal trends of travel-related DENV burden and its geographical sources.

Methods: All cases of laboratory-confirmed DENV infection diagnosed at the Central Virology Laboratory of the Israeli Ministry of Health during 2008-2019 were evaluated. Read More

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Adherence to WHO vaccine storage codes and vaccine cold chain management practices at primary healthcare facilities in Dalocha District of Silt'e Zone, Ethiopia.

Trop Dis Travel Med Vaccines 2022 Apr 20;8(1):10. Epub 2022 Apr 20.

Department of Pharmaceutics and Social Pharmacy, School of pharmacy, College of medicine and Health Sciences, Mizan-Tepi University, Mizan-Aman, Ethiopia.

Background: The main elements of effective vaccine cold chain management at the immunization service delivery point are well-trained vaccine cold chain handlers, vaccine storage equipment, and appropriate vaccine management procedures. Vaccine cold chain handlers must have enough expertise to provide the correct vaccine at the right time, maintain vaccine potency, and minimize vaccination failures. The study assessed knowledge of vaccine cold chain handlers on vaccine cold chain management, adherence to the WHO vaccine storage codes and vaccine cold chain management practice at primary health facilities in Dalocha district of Silt'e zone. Read More

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Humoral Responses Against SARS-CoV-2 and Variants of Concern After mRNA Vaccines in Patients With Non-Hodgkin Lymphoma and Chronic Lymphocytic Leukemia.

J Clin Oncol 2022 Apr 18:JCO2200088. Epub 2022 Apr 18.

Emory Vaccine Center, Department of Microbiology and Immunology, Emory University School of Medicine, Atlanta, GA.

Purpose: Patients with non-Hodgkin lymphoma including chronic lymphocytic leukemia (NHL/CLL) are at higher risk of severe SARS-CoV-2 infection. We investigated vaccine-induced antibody responses in patients with NHL/CLL against the original SARS-CoV-2 strain and variants of concern including B.1. Read More

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Public acceptability of COVID-19 control measures in Singapore, Hong Kong, and Malaysia: A cross-sectional survey.

Int J Infect Dis 2022 Apr 14;120:51-58. Epub 2022 Apr 14.

Saw Swee Hock School of Public Health, National University of Singapore and National University Health System, Singapore, Singapore; London School of Hygiene & Tropical Medicine, London, England, United Kingdom. Electronic address:

Background: Several countries have implemented control measures to limit SARS-CoV-2 spread, including digital contact tracing, digital monitoring of quarantined individuals, and testing of travelers. These raise ethical issues around privacy, personal freedoms, and equity. However, little is known regarding public acceptability of these measures. Read More

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Measles Experience, Practice, and Knowledge by Pediatricians in the Context of Resurgent US Outbreaks.

J Pediatr 2022 Apr 12. Epub 2022 Apr 12.

Adult and Child Consortium for Health Outcomes Research and Delivery Science, University of Colorado Anschutz Medical Campus and Children's Hospital Colorado, Aurora, CO; Department of Pediatrics, University of Colorado Anschutz Medical Campus, Aurora, CO.

Objective: To assess measles experience, practice, and knowledge by pediatricians in the context of resurgent US outbreaks in 2018-2019.

Study Design: A nationally representative network of pediatricians were surveyed by email and mail from January to April 2020.

Results: The response rate was 67% (297 of 444). Read More

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Historical review: Towards the 50th anniversary of the last major smallpox outbreak (Yugoslavia, 1972).

Travel Med Infect Dis 2022 Apr 11;48:102327. Epub 2022 Apr 11.

Department of Epidemiology, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia. Electronic address:

In 1972, Yugoslavia experienced the largest outbreak of smallpox in the history of Europe following the Second World War and its first smallpox outbreak after 1930. The origin of the infection is believed to be a pilgrim who visited countries in the Middle East. In this epidemic in Yugoslavia, from 16th February to 11 April 1972, a total of 175 people fell ill, 35 (20%) of whom died. Read More

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Immunogenicity of the mRNA-1273 COVID-19 vaccine in adult patients with inborn errors of immunity.

J Allergy Clin Immunol 2022 Apr 11. Epub 2022 Apr 11.

Department of Medical Microbiology and Infection Prevention, Amsterdam Institute for Infection and Immunity, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands.

Background: Patients with inborn errors of immunity (IEI) are at increased risk of severe coronavirus disease-2019 (COVID-19). Effective vaccination against COVID-19 is therefore of great importance in this group, but little is known about the immunogenicity of COVID-19 vaccines in these patients.

Objectives: We sought to study humoral and cellular immune responses after mRNA-1273 COVID-19 vaccination in adult patients with IEI. Read More

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SARS-CoV-2 Omicron Variant: Exploring Healthcare Workers' Awareness and Perception of Vaccine Effectiveness: A National Survey During the First Week of WHO Variant Alert.

Front Public Health 2022 25;10:878159. Epub 2022 Mar 25.

College of Medicine, King Saud University, Riyadh, Saudi Arabia.

Background: As the SARS-CoV-2 Omicron variant spreads in several countries, healthcare workers' (HCWs) perceptions and worries regarding vaccine effectiveness and boosters warrant reassessment.

Methods: An online questionnaire among HCWs in Saudi Arabia (KSA) was distributed from Dec 1st-6th 2021 to assess their perceptions, vaccine advocacy to the Omicron variant, and their perception of the effectiveness of infection prevention measures and vaccination to prevent its spread, their Omicron variant related worries in comparison to the other variants, and their agreement with mandatory vaccination in general for adults.

Results: Among the 1,285 HCW participants, two-thirds were female, 49. Read More

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Mutational scanning of spike RBD protein for enhanced ACE2 affinity emerging Southeast Asia in the late transmission phase.

Sci Rep 2022 04 7;12(1):5896. Epub 2022 Apr 7.

Department of Biochemistry, Faculty of Medicine, Thailand Excellence Center for Tissue Engineering and Stem Cells, Chiang Mai University, Chiang Mai, 50200, Thailand.

The COVID-19 pandemic has changed the quality of life and economic systems all over the world, as the virus can be transmitted from human to human via air-droplets. Since the SARS-CoV-2 virus was first identified in 2019, the virus has naturally mutated over time. Southeast Asia is one of the areas in the world that has implemented various procedures and measures to slow down the disease outbreaks. Read More

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High heterogeneity on the accepted vaccines for COVID-19 certificates in European countries.

Travel Med Infect Dis 2022 Apr 4;48:102321. Epub 2022 Apr 4.

Travel Medicine Department, National Public Health Organization, Athens, Greece.

Background: We aimed to elucidate which vaccines were accepted by European countries as valid proof of vaccination against COVID-19 for international travelers.

Method: On 27-September-2021 a cross-sectional study was conducted on VisaGuide.World, that reports on valid vaccines for international travelers. Read More

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SARS-CoV-2 breakthrough infections among vaccinated individuals with rheumatic disease: results from the COVID-19 Global Rheumatology Alliance provider registry.

RMD Open 2022 Apr;8(1)

Autonomous University of Chihuahua, Chihuahua, Mexico.

Objective: While COVID-19 vaccination prevents severe infections, poor immunogenicity in immunocompromised people threatens vaccine effectiveness. We analysed the clinical characteristics of patients with rheumatic disease who developed breakthrough COVID-19 after vaccination against SARS-CoV-2.

Methods: We included people partially or fully vaccinated against SARS-CoV-2 who developed COVID-19 between 5 January and 30 September 2021 and were reported to the Global Rheumatology Alliance registry. Read More

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Vaccination coverage rates and attitudes towards mandatory vaccinations among healthcare personnel in tertiary-care hospitals in Greece.

Expert Rev Vaccines 2022 Apr 13:1-7. Epub 2022 Apr 13.

Pathophysiology Department, Medical School, National and Kapodistrian University of Athens, and General Hospital of Athens Laiko, Athens, Greece.

Objectives: Our aim was to estimate vaccination and susceptibility rates against vaccine-preventable diseases among healthcare personnel (HCP) in eight hospitals.

Methods: Cross-sectional survey.

Results: A total of 1284 HCP participated (physicians: 31. Read More

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How to Deal With Vaccine Breakthrough Infection With SARS-CoV-2 Variants.

Front Public Health 2022 15;10:842303. Epub 2022 Mar 15.

Department of Blood Transfusion, Affiliated Hospital of Weifang Medical University, Weifang, China.

Novel Coronary Pneumonia is the most infectious disease with the highest number of morbidity and mortality in 100 years. Despite aggressive and effective COVID-19 prevention and control measures, countries have been unable to stop its outbreaks. With the widespread use of vaccines, the occurrence of COVID-19 has declined markedly. Read More

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Comparative efficacy and safety of vaccines to prevent seasonal influenza: A systematic review and network meta-analysis.

EClinicalMedicine 2022 Apr 25;46:101331. Epub 2022 Mar 25.

Department of Biomedical Sciences for Health, University of Milan, Milan, Italy.

Background: Influenza is one of the most common respiratory viral infections worldwide. Numerous vaccines are used to prevent influenza. Their selection should be informed by the best available evidence. Read More

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