Vaccination Benefits-How Well Vaccines Work. 

 - 1 online resource (streaming video file) (33 minutes):  digital, .flv file, sound 
<br/><br/> Title from title frames.  Film  In Process Record. 
<br/><br/>Steven Novella 
<br/><br/> Originally produced by The Great Courses in 2010. 
<br/><br/> Vaccines are perhaps the single safest and most effective preventive health measure ever devised. In the first of two episodes on this subject, learn the history of vaccination, what types of vaccines doctors use to stave off specific diseases, and why some people still question whether this technique works. 
<br/><br/><br/>Mode of access: World Wide Web. 
<br/><br/><br/>In English 
<br/><br/><label>Publisher. No.: </label>7865373  Kanopy 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Health.<br/>Medicine.
<br/><br/><label>Index Terms--Genre/Form: </label><br/>Education films.