Hong Kong should step up efforts to fight mosquitoes after the city recorded its second-longest black rainstorm warning, experts have warned, with data showing the breeding of the pest that can transmit chikungunya fever is “fairly extensive” in 70 per cent of the city’s surveyed areas.
A black rainstorm warning lasted 11 hours and 15 minutes on Tuesday, the second-longest in Hong Kong’s recorded history. Three days earlier, the city recorded its first imported chikungunya fever case, a…
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