ACIP	Advisory Committee on Immunization Practices
CISA	Clinical Immunization Safety Assessment
ccIIV	cell culture-based inactivated influenza vaccine
IIV	inactivated influenza vaccines
RCTs	randomized controlled trials
RIV	recombinant influenza vaccine
RSV	respiratory syncytial virus
Tdap	tetanus-diphtheria-acellular pertussis
Th2	T-helper 2
VAERS	Vaccine Adverse Event Reporting System
CMO	extracorporeal membrane oxygenation
FHA	filamentous hemagglutinin
GBS	Group B Streptococcus
HBIG	hepatitis B immunoglobulin
HBV	hepatitis B virus
LRTD	lower respiratory tract disease (diseases of the lungs such as bronchitis or pneumonia)
MTCT	mother-to-child transmission (of hepatitis B virus)
NNT	neonatal tetanus
PT	pertussis toxin
PRN	pertactin
TT	tetanus toxoid
WHO	World Health Organization