Epidemiologic and genomic investigations of an unusual increase in Salmonella enterica serovar Paratyphi A infection among travelers returning from Myanmar in 2015

•Myanmar had a high incidence of enteric fever among travelers.•Salmonella Paratyphi A infection imported from Myanmar increased in 2015.•Myanmar-related isolates in returning travelers were genetically closely related.•Careful monitoring of the infection in Myanmar is warranted. An unusual increase...

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Bibliographic Details
Published in:International journal of infectious diseases 2022-12, Vol.125, p.170-176
Main Authors: Matono, Takashi, Izumiya, Hidemasa, Koga, Hidenobu, Kaku, Mitsuo, Ohnishi, Makoto, Morita, Masatomo
Format: Article
Language:English
Subjects:
COVID-19
Epidemic
Genomics
Humans
Myanmar
Myanmar - epidemiology
Pandemics
Paratyphoid fever
Paratyphoid Fever - epidemiology
Paratyphoid Fever - microbiology
Salmonella enterica serovar Paratyphi A
Salmonella paratyphi A - genetics
Salmonella typhi
Typhoid Fever - drug therapy
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Summary:•Myanmar had a high incidence of enteric fever among travelers.•Salmonella Paratyphi A infection imported from Myanmar increased in 2015.•Myanmar-related isolates in returning travelers were genetically closely related.•Careful monitoring of the infection in Myanmar is warranted. An unusual increase in Salmonella enterica serovar Paratyphi A infection rate in Japanese travelers returning from Myanmar was observed in 2015. We analyzed epidemiologic data of returned travelers with enteric fever from 2005-2019. We also analyzed 193 Salmonella Paratyphi A isolates, including 121 isolates with published genomes. Annual notification trends showed a rapid increase in Salmonella Paratyphi A infection in travelers returning from Myanmar in 2015: 2-4 cases/100,000 travelers in 2012-2014 and 13 cases/100,000 travelers in 2015 (P
ISSN:1201-9712
1878-3511
DOI:10.1016/j.ijid.2022.10.034