The New Paper A healthcare worker storing a nasopharyngeal swab to test for Covid-19 TNP FILE PHOTO Jul 28, 2021 06:00 am 0 Engagements Four new Covid-19 clusters have surfaced, one of which has four cases and involves a Punggol Primary School cleaner and another at Westlite Juniper Dormitory with nine cases. The other two new active clusters are linked to individual cases, each having three cases linked to it, the Health Ministry (MOH) said yesterday. There are currently 39 active clusters. The Jurong Fishery Port cluster, which remains the largest cluster to date, stands at 902 cases after 36 cases were added to it. Another two cases were added to the KTV cluster, which now has 245 cases in total.