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Table 7 DENV/CHIKV/ZIKV PRNTs results

From: Imported arboviral infections in Italy, July 2014-October 2015: a National Reference Laboratory report

  PRNT positives/tested PRNT border line/tested
DENV 79/157 (50.3%) 31/157 (19,7%) 10/31 (32.3%): confirmed cases
12/31 (38.7%): probable cases
9/31 (29%): possible cases
CHIKV 47/97 (48.4%) 11/97 (11,3%) 1/11 (9%): confirmed case
4/11 (36,4%): probable cases
6/11 (54,6%): possible cases
ZIKV 5/15 (33,3%) 1/15 (6,7%) possible case (probable cross reactivity of DENV specific neutralizing antibodies)