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June 28, 2021
More than 2,700 dengue cases have been reported since the start of the year.
The Straits Times
SINGAPORE - New strains of less common dengue serotypes, which are usually imported, could raise the risk of a larger outbreak, say experts.
Of the four distinct dengue virus variations, the DenV-1 and DenV-2 serotypes are most commonly seen here. The majority of infections since 2016 have been caused by DenV-2 - meaning that most recovered dengue patients would have immunity against this serotype.
However, DenV-3 and DenV-4 accounted for more than half of the dengue cases sampled here since February.
Last year saw the first DenV-3 outbreak here in three decades and a fourfold spike in DenV-4 cases, from 4.8 per cent of infections in January to 23.1 per cent by December.
The Straits Times
New strains could raise risk of larger dengue outbreak: Experts
More than 2,700 dengue cases have been reported since the start of the year.ST PHOTO: LIM YAOHUI
https://str.sg/3oGA
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