B-PAC	B-type proanthocyanidins
CV-B3	coxsackie virus type B-3
CC	cytotoxic concentration
DENV	dengue virus
DTMUV	duck Tembusu virus
EC	effective concentration
ECG	epicatechin gallate
EGCG	epigallocatechin-3-gallate
FCV	felinecalici virus
HA	hemagglutinins
HAV	hepatitis A virus
HBV	hepatitis B virus
HCV	hepatitis C virus
HPLC	high performance liquid chromatography
HPLC-DAD	high performance liquid chromatography—diode-array detection
HSV-1	herpes simplex virus 1
HSV-2	herpes simplex virus 2
IAV	influenza virus A type
IC	inhibitory concentration
IBV	influenza virus B type
ID	infective dose
LC-MS	liquid chromatographs equipped with a mass detector
MALDI-TOF-MS	matrix-assisted laser desorption/ionization—time-of-flight mass spectrometry
MNV-1	murine norovirus
MPXV	monkeypox virus
NA	neuraminidase
NADES	natural deep eutectic solvents
NMR	Nuclear Magnetic Resonance
PA2	proanthocyanidin A2
PAC-A	A-type proanthocyanidins
PHWE	pressurized hot water extraction
PLE	pressurized liquid extraction
PRRS	porcine reproductive and respiratory syndrome
RV	rhinovirus
SARS	severe acute respiratory syndrome
TF1	theaflavin
TF2	theaflavin-3′-monogallate
TF2a	theaflavin-3′-O-gallate
TF2b	theaflavin-3′-gallate
TF3	theaflavin-3-3′-digallate
TLC	thin layer chromatograph
TMV	tobacco mosaic virus
TPC	total phenolic content
UPLC	ultra performance liquid chromatography
UV-VIS	Ultraviolet–visible absorption
VACV	vaccinia virus
ZIKV	zika virus