Definition and comparison of vaccines

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

Vaccination: Injection of a killed or weakened infectious organism in order to prevent the disease.

Vaccine: A product that produces immunity therefore protecting the body from the disease. Vaccines are administered through needle injections, by mouth and by aerosol.

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.

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.

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

Vaccine: A preparation that is used to stimulate the body’s immune response against diseases. Vaccines are usually administered through needle injections, but some can be administered by mouth or sprayed into the nose.

Vaccination: The act of introducing a vaccine into the body to produce protection from 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.

Hepatitis A – “The vaccine to prevent it is about 95% effective in healthy adults and can work for more than 20 years. In children, it’s about 85% effective and can last 15 to 20 years.”

Hepatitis B – “Studies indicate that immunologic memory remains intact for at least 30 years among healthy people who initiated hepatitis B vaccination at >6 months of age (16). The vaccine confers long-term protection against clinical illness and chronic hepatitis B virus infection. Cellular immunity appears to persist even though antibody levels might become low or decline below detectable levels.”

MMR (Measles, Mumps, Rubella) – “People who receive MMR vaccination according to the U.S. vaccination schedule are usually considered protected for life against measles and rubella. While MMR provides effective protection against mumps for most people, immunity against mumps may decrease over time and some people may no longer be protected against mumps later in life. An additional dose may be needed if you are at risk because of a mumps outbreak.”

Tdap (Tetanus, diphtheria and pertussis) – “[A]dults should receive a booster dose of either Tdap or Td (a different vaccine that protects against tetanus and diphtheria but not pertussis) every 10 years, or after 5 years in the case of a severe or dirty wound or burn. “ (emphasis in the original)

(For a more complete list of available vaccines and facts about them, go here.)

The CEO of pharmaceutical giant Moderna says that even younger people will have to get vaccine booster shots at least once every three years…

The CEO said older and vulnerable people would “undoubtedly” need refresher shots at least once a year, while even younger people who face an infinitesimal chance of dying from the virus will need booster shots every three years.

As data shows that Covid-19 vaccines do not provide long-lasting immune protection, countries such as Israel and Austria are canceling “expired” vaccination cards and requiring citizens and visitors to receive booster shots to ‘refresh’ their vaccination status

Israeli data show that the effectiveness of Pfizer’s Covid-19 vaccine has dropped from 95% relative risk reduction during the initial trials to only 39% by the end of July

“This is simply because the vaccine is only valid for five to six months in terms of its effectiveness. After about half a year, you need to get a third dose. Otherwise, the vaccine loses its effectiveness,” Health Minister Nitzan Horowitz said…

In August, Austria and Croatia were the first countries to announce that they would set expiration dates for older vaccine shots…