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Table 1 Municipalities, sampling sites and breeding sites monitored and positive for Aedes j. japonicus in northern Italy, 2015–2018

From: The invasive mosquito Aedes japonicus japonicus is spreading in northeastern Italy

Year Sampling sites Breeding sites Municipalities
Positive/Monitoreda (%) Positive/Monitoredb (%) Positive/Monitoreda (%)
Friuli Venezia Giulia Region
 2015 5/12 (41.7) 5/12 (41.7) 2/5 (40.0)
 2016 6/29 (20.7) 6/38 (15.8) 3/14 (21.4)
 2017 8/16 (50.0) 8/21 (36.4) 5/12 (41.7)
 2018 63/86 (73.3) 69/95 (71.9) 43/49 (87.8)
Veneto Region
 2015 0/3 (0) 0/4 (0) 0/1 (0)
 2016 0/13 (0) 0/14 (0) 0/6 (0)
 2017 0/37 (0) 0/40 (0) 0/7 (0)
 2018 8/44 (18.2) 8/49 (16.3) 7/10 (63.6)
  1. aPositive sites and municipalities each year may contain sites and municipalities positive the year before
  2. bIn each sampling site, multiple breeding sites may have been checked