Author:
Vinh Ha,Nhu Nguyen Thi Khanh,Nga Tran Vu Thieu,Duy Pham Thanh,Campbell James I,Hoang Nguyen Van Minh,Boni Maciej F,My Phan Vu Tra,Parry Christopher,Nga Tran Thi Thu,Van Minh Pham,Thuy Cao Thu,Diep To Song,Phuong Le Thi,Chinh Mai Thu,Loan Ha Thi,Tham Nguyen Thi Hong,Lanh Mai Ngoc,Mong Bui Li,Anh Vo Thi Cuc,Bay Phan Van Be,Chau Nguyen Van Vinh,Farrar Jeremy,Baker Stephen
Abstract
Abstract
Background
Shigellosis remains considerable public health problem in some developing countries. The nature of Shigellae suggests that they are highly adaptable when placed under selective pressure in a human population. This is demonstrated by variation and fluctuations in serotypes and antimicrobial resistance profile of organisms circulating in differing setting in endemic locations. Antimicrobial resistance in the genus Shigella is a constant threat, with reports of organisms in Asia being resistant to multiple antimicrobials and new generation therapies.
Methods
Here we compare microbiological, clinical and epidemiological data from patients with shigellosis over three different periods in southern Vietnam spanning14 years.
Results
Our data demonstrates a shift in dominant infecting species (S. flexneri to S. sonnei) and resistance profile of the organisms circulating in southern Vietnam. We find that there was no significant variation in the syndromes associated with either S. sonnei or S. flexneri, yet the clinical features of the disease are more severe in later observations.
Conclusions
Our findings show a change in clinical presentation of shigellosis in this setting, as the disease may be now more pronounced, this is concurrent with a change in antimicrobial resistance profile. These data highlight the socio-economic development of southern Vietnam and should guide future vaccine development and deployment strategies.
Trial Registration
Current Controlled Trials ISRCTN55945881
Publisher
Springer Science and Business Media LLC
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