Ogawa T, Hirai N, Imakita N, Fujikura H, Kajita A, Imai Y, Onishi T, Takeyama M, Kasahara K. Travelers' vaccines and their adverse events in Nara, Japan.
Open Med (Wars) 2021;
16:978-985. [PMID:
34250252 PMCID:
PMC8247788 DOI:
10.1515/med-2021-0303]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2020] [Revised: 04/11/2021] [Accepted: 05/05/2021] [Indexed: 11/21/2022] Open
Abstract
Background:
It is important to analyze the types of vaccines in travel clinics to determine the focus points in future practice.
Methods
We retrospectively reviewed the electronic medical records of all patients who visited the travel clinic of Nara Medical University between June 2013 and December 2019 to determine their background and the vaccines administered. The information regarding adverse events of the unapproved vaccines in Japan (Havrix®, Verorab®, Boostrix®, Priorix®, Typhim Vi®, and Mencevax®) was also collected.
Results
Of 645 patients, 58.6% were men and the median age was 31 years. Business was the most common travel purpose (34.9%), and Southeast Asia was the most common destination (40.2%). More than 80% of travelers to low- and middle-income countries were vaccinated against hepatitis A, while the rabies vaccination rate was approximately 50%. Typhoid vaccination coverage among travelers to South Asia was approximately 50%. The incidence of adverse events requiring medical consultation, telephonic consultation, or prolonged stay in the examination room was less than 5% for all unapproved vaccines in Japan.
Conclusion
More patient education is needed to increase the vaccination rate of rabies and typhoid vaccines. Adverse events to unapproved vaccines in Japan were not high and were well-tolerated.
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