Table 4.

Serologic Summary of a Subset of Individuals with Antibodies to Flaviviruses

		PRNT90 titer
Sample ID	Participant type	WNV	SLEV	DENV-1	DENV-2	DENV-3	DENV-4	PRNT diagnosis
B004	Blood donor	20	—a	160	40	20	40	DENV-1
B029	Blood donor	320	20	20	—	—	20	WNV
B038	Blood donor	—	—	40	—	—	20	DENV (undetermined serotype)
F100	Febrile patient	640	320	20,480	10,240	2560	10,240	Secondary flavivirus infection
F011	Febrile patient	10,240	640	10,240	10,240	1280	20,480	Secondary flavivirus infection
B034	Blood donor	—	20	320	80	40	80	DENV-1
F160	Febrile patient	20	—	40	320	20	20	DENV-2
F193	Febrile patient	—	—	160	80	—	40	DENV (undetermined serotype)
F047	Febrile patient	20	—	40	160	40	40	DENV-2
F043	Febrile patient	640	20	20	40	—	20	WNV
N 040	Encephalitis	5120	80	10,240	20,480	20,480	20,480	Secondary flavivirus infection
N012	Encephalitis	20	—	160	40	40	40	DENV-1
N017	Encephalitis	20	—	160	320	160	160	DENV (undetermined serotype)
N016	Encephalitis	20	—	80	320	80	80	DENV-2

^aLess than 20.