Sunday, 28 August 2016

Singapore's Health Ministry confirmed 41 cases of locally-transmitted Zika, all were residents or workers in Aljunied Crescent and Sims Drive area

Singapore confirms 41 Zika cases, 34 fully recovered

SINGAPORE: Singapore's Health Ministry has confirmed 41 cases of locally-transmitted Zika, all of whom were residents or workers in the Aljunied Crescent and Sims Drive area. They include 36 foreign construction workers.

This is out of 124 people – including 118 construction workers – who were tested on Aug 27. In all, 78 have tested negative and the remaining five cases are still pending, MOH and the National Environment Agency (NEA) announced in a joint press conference on Sunday.

None of the cases are known to have travelled to Zika-affected areas recently, suggesting local transmission. These are in contrast to Singapore's first Zika case in May, a 48-year-old man who had visited Brazil, one of the Zika-affected countries.

The latest announcement follows the one on Saturday of Singapore's first locally-transmitted case of the virus – a Malaysian woman. She is the only confirmed female case in Singapore.

Of the 41 cases, 36 were detected through active testing. In all, 34 cases have fully recovered. The remaining seven, "who were mostly tested on Aug 27", are still symptomatic and recovering at Tan Tock Seng Hospital.

So far, the cases appear to be localised within the Aljunied Crescent and Sims Drive cluster, said MOH.

The NEA started intensified vector control operations – targeting Aedes mosquitoes which spread the virus – and will continue for 14 days, with surveillance of the situation for another 21 days afterwards. These include misting, fogging and increasing the frequency of flushing and oiling drains to prevent mosquito breeding.

The Zika virus has mild effects on most people but it can be fatal for unborn children. Pregnant women who get infected may give birth to babies with small heads, a condition called microcephaly, and other brain defects.

As the Zika virus is spread by the Aedes mosquito, which also spreads dengue, authorities expect more locally-spread cases. Vector control remains a central strategy to fight the spread, said authorities.

About four in five people infected by Zika will not show symptoms. For those who do, the symptoms include viral fever, skin rashes, body aches and headache.

On Aug 22, a GP clinic in the area informed authorities of an unusual increase in viral fever. The next day, MOH went down and told GPs to refer new cases to the Communicable Diseases Centre, and began tracing past cases. At that point in time, authorities suspected a mild viral infection but not Zika specifically.

On Saturday, Aug 27, more than 200 officers were activated to conduct intensified control operations.

There are more than 6,000 premises in the area, including 5,000 HDB units. The NEA inspected 1,800 units on Aug 27 and is continuing inspections.A construction site at Sims Drive, where the 36 infected workers were working, was also issued a stop-work order on Aug 27. This was after mosquito breeding was detected on Aug 24 and the NEA assessing that the site's housekeeping was poor as of Aug 27, although no breeding was detected on Aug 27. – The Straits Times/Asia News Network

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