Vaccine Origins and Functionality Quiz

The word 'vaccine' originates from the Latin Variolae vaccinae (cowpox), which Edward Jenner demonstrated in 1798 could prevent smallpox in humans.

Vaccines enhance immunity against disease and either prevent (prophylactic vaccines) or, in some cases, treat disease (therapeutic vaccines).

Some vaccines offer full sterilizing immunity, in which infection is prevented completely, while other forms of immunity may not completely prevent infection.

<p>Widespread immunity due to vaccination is largely responsible for the worldwide eradication of smallpox and the restriction of diseases such as polio, measles, and tetanus from much of the world.</p> Signup and view all the answers

<p>Vaccines are administered in liquid form, either by injection, by oral, or by intranasal routes.</p> Signup and view all the answers

<ol> <li>From living organisms weakened by attenuation or genetic modification, 2) From whole inactivated organisms, 3) From components of the pathogen like proteins, polysaccharides or nucleic acids, 4) From inactivated bacterial toxins, 5) From conjugation of polysaccharides to proteins.</li> </ol> Signup and view all the answers

<p>It increases the effectiveness of polysaccharide vaccines in young children.</p> Signup and view all the answers

<p>Diphtheria, tetanus, pertussis, Haemophilus influenzae type b, hepatitis B, and polio vaccines.</p> Signup and view all the answers

<p>They contain toxoids, purified protein subunits, conjugated polysaccharides, recombinant proteins, and inactivated viruses.</p> Signup and view all the answers

<p>To provide protection against each of the different serotypes/strains of that pathogen.</p> Signup and view all the answers