New Zealand BA.3.2 “Cicada” wastewater update Detected each week to date in November, but fell below 1% threshold in week to 23 Nov. Detected in a few sampling sites. Not yet widespread. NB.1.8.1 NImbus: 40.7% PE.1.4: 18.0% XFG Stratus: 16.0% 45% of population covered by ww testing.