ADE	Antibody-dependent enhancement
AFP	Acute flaccid paralysis
CBC	Complete blood count
CDC	Centers for Disease Control and Prevention
CHIKV	Chikungunya virus
CSF	Cerebrospinal fluid
CZS	Congenital Zika syndrome
DENV	Dengue virus
ECDC	European Centre for Disease Prevention and Control
ECSA	East/Central/South African
EEA	European Economic Area
EFSA	European Food Safety Authority
EMA	European Medicines Agency
EU	European Union
FDA	U.S. Food and Drug Administration
OROV	Oropouche virus
PRNT	Plaque reduction neutralization test
RNA	Ribonucleic acid
RT-PCR	Reverse transcription polymerase chain reaction
TBEV	Tick-borne encephalitis virus
US	United States
VLP	Virus-like particle
WHO	World Health Organization
WNE	West Nile encephalitis
WNF	West Nile fever
WNND	West Nile neuroinvasive disease
WNV	West Nile virus
ZIKV	Zika virus