A worker fogs the common area of a public housing estate at a new Zika cluster in Singapore September 1, 2016. REUTERS/Edgar Su

A worker fogs the common area of a public housing estate at a new Zika cluster in Singapore September 1, 2016. REUTERS/Edgar Su

A worker fogs the common area of a public housing estate at a new Zika cluster in Singapore September 1, 2016. REUTERS/Edgar Su

September 2, 2016 4:24 AM (UTC+8)