ACIP	(CDC’s) Advisory Committee on Immunization Practice
ARDS	Acute respiratory distress syndrome
BCG	Bacillus Calmette–Guérin vaccine
CDC	Centers for Disease Control and Prevention
DIC	Disseminated intravascular coagulation
ECDC	European Centre for Disease Prevention and Control
EEA	European Economic Area
EU	European Union
HA	Hemagglutinin
HZ	Herpes zoster (shingles)
ICU	Intensive care unit
IPD	Invasive pneumococcal disease
MMR	Measles, mumps, rubella
MMRV	MMR with varicella
NA	Neuraminidase
PP	Pneumococcal pneumonia
PCVs	Pneumococcal conjugate vaccines
PPVs	Pneumococcal polysaccharide vaccines
PHN	Post-herpetic neuralgia
RBD	Receptor-binding domain
RSV	Respiratory syncytial virus
RSV-ARI	RSV-related acute respiratory illness
RSV-LRTD	RSV-related lower respiratory tract disease
RZV	Recombinant zoster vaccine
ZLV	Zoster live vaccine
VZV	Varicella zoster virus
WHO	World Health Organization