https://www.forbes.com/sites/joshuacohe ... in-the-us/
Quote:
The Novavax’s Covid-19 vaccine candidate, named Covovax, could be the first approved in the U.S. to rely on a traditional, tried-and-true inoculation method. Its protein-based Covid-19 vaccine employs what’s called recombinant nanoparticle technology, distinguishing it from mRNA and viral vector vaccines.
The purified protein, or protein subunit approach which Novavax used to develop its vaccine has been deployed in other vaccines that have been on the market for several decades. The Hepatitis B vaccine, for example, is a subunit agent.
But, the subunit type of vaccine is not the only “traditional” vaccine. In fact, when people speak of traditional vaccines with long histories they’re referencing a slew of types, from killed and inactivated, to live attenuated, to protein subunit.
An inactivated vaccine consists of virus particles, bacteria, or other pathogens that have been grown in culture and then killed to destroy disease producing capacity. Live vaccines use a weakened (or attenuated) form of the germ that causes a disease. Unlike live attenuated or an inactivated vaccine, a subunit vaccine contains purified parts of the pathogen that are antigenic, or necessary to elicit a protective immune response.
The polio vaccine is a typical example of an inactivated vaccine, as is the combination diphtheria, tetanus, and pertussis vaccine. The combination measles, mumps, and rubella vaccine is a live attenuated agent. Influenza vaccines can be both inactivated and live attenuated.
_________________
...what do the public, the great unobservant public, who could hardly tell a weaver by his tooth or a compositor by his left thumb, care about the finer shades of analysis and deduction!
23 Dec 2021, 12:36 pm
