And Texas Caves In

ExxWhy wrote:
Yes I am serious providing definitions. Looks like it is needed, so let's try a different definition of vaccine.

Bonus question, does the flu shot fit the CDC description posted below of a vaccine?


From the CDC themselves.

https://www.cdc.gov/vaccines/vac-gen/imz-basics.htm

Definition of Terms
Let’s start by defining several basic terms:

Immunity: Protection from an infectious disease. If you are immune to a disease, you can be exposed to it without becoming infected.

Vaccine: A product that stimulates a person’s immune system to produce immunity to a specific disease, protecting the person from that disease. Vaccines are usually administered through needle injections, but can also be administered by mouth or sprayed into the nose.

Vaccination: The act of introducing a vaccine into the body to produce immunity to a specific disease.

Immunization: A process by which a person becomes protected against a disease through vaccination. This term is often used interchangeably with vaccination or inoculation.

Bonus question answered by the CDC

CDC

Vaccines and Preventable Diseases wrote:
Links to Clinical info about the vaccine

Adenovirus
Anthrax
AVA (BioThrax)
Cholera
Vaxchora
Diphtheria
DTaP (Daptacel, Infanrix)
Td (Tenivac, generic)
DT (-generic-)
Tdap (Adacel, Boostrix)
DTaP-IPV (Kinrix, Quadracel)
DTaP-HepB-IPV (Pediarix)
DTaP-IPV/Hib (Pentacel)
Hepatitis A
HepA (Havrix, Vaqta)
HepA-HepB (Twinrix)
Hepatitis B
HepB (Engerix-B, Recombivax HB, Heplisav-B)
DTaP-HepB-IPV (Pediarix)
HepA-HepB (Twinrix)
Haemophilus influenzae type b (Hib)
Hib (ActHIB, PedvaxHIB, Hiberix)
DTaP-IPV/Hib (Pentacel)
Human Papillomavirus (HPV)
HPV9 (Gardasil 9) (For scientific papers, the preferred abbreviation is 9vHPV)
Seasonal Influenza (Flu) only
IIV* (Afluria, Fluad, Flublok, Flucelvax, FluLaval, Fluarix, Fluvirin, Fluzone, Fluzone High-Dose, Fluzone Intradermal)
*There are various acronyms for inactivated flu vaccines – IIV3, IIV4, RIV3, RIV4 and ccIIV4.
LAIV (FluMist)
Japanese Encephalitis
JE (Ixiaro)
Measles
MMR (M-M-R II)
MMRV (ProQuad)
Meningococcal
MenACWY (Menactra, Menveo)
MenB (Bexsero, Trumenba)
Mumps
MMR (M-M-R II)
MMRV (ProQuad)
Pertussis
DTaP (Daptacel, Infanrix)
Tdap (Adacel, Boostrix)
DTaP-IPV (Kinrix, Quadracel)
DTaP-HepB-IPV (Pediarix)
DTaP-IPV/Hib (Pentacel)
Pneumococcal
PCV13 (Prevnar13)
PPSV23 (Pneumovax 23)
Polio
Polio (Ipol)
DTaP-IPV (Kinrix, Quadracel)
DTaP-HepB-IPV (Pediarix)
DTaP-IPV/Hib (Pentacel)
Rabies
Rabies (Imovax Rabies, RabAvert)
Rotavirus
RV1 (Rotarix)
RV5 (RotaTeq)
Rubella
MMR (M-M-R II)
MMRV (ProQuad)
Shingles
ZVL (Zostavax)
RZV (Shingrix)
Smallpox
Vaccinia (ACAM2000):
Tetanus
DTaP (Daptacel, Infanrix)
Td (Tenivac, generic)
DT (-generic-)
Tdap (Adacel, Boostrix)
DTaP-IPV (Kinrix, Quadracel)
DTaP-HepB-IPV (Pediarix)
DTaP-IPV/Hib (Pentacel)
Tuberculosis
Typhoid Fever
Typhoid Oral (Vivotif)
Typhoid Polysaccharide (Typhim Vi)
Varicella
VAR (Varivax)
MMRV (ProQuad):
Yellow Fever
YF (YF-Vax)

I suggest reading up on antigenic drift and shift and then look into how many other viruses beside influenza are impacted by these and therefore altering the effectiveness of the corresponding vaccine.