SINGAPORE - A pilot programme launched here in Februarycould detect the level of coronavirus spread through tests of wastewater, an approach that has implications for how policies like individual testing and isolation are effected.. Read more at straitstimes.com.
SINGAPORE - A pilot programme launched here in Februarycould detect the level of coronavirus spread through tests of wastewater, an approach that has implications for how policies like individual testing and isolation are effected.
On the other hand, the absence of viral material at other dorms has given authorities added confidence that they remain free of virus when no cases have been reported. In a statement on Friday , the NEA, together with National Water Agency PUB and Home Team Science and Technology Agency , said the programme is still in its early stages here, although there are plans to expand it.The unusual method has been in development and put to gradual use since February, after the first case of the coronavirus was reported here on January 23.
The method, however, has its limitations. In particular, it seems to be less effective when there are few cases, a shortcoming which means more research is needed to understand its use as an early warning system. "Several reports overseas have shown that wastewater testing at treatment plants could be useful for early detection of Covid-19 transmission in the community. However, at low level transmission, wastewater surveillance at the treatment plant appears to be less sensitive than clinical surveillance of cases in Singapore," said Director of NEA's environmental health institute, Associate Professor Ng Lee Ching.
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