Cassiday, P <br/><br/>
Polymorphism in Bordetella pertussis pertactin and pertussis toxin virulence factors in the United States, 1935-1999.  [electronic resource] 

 -  The Journal of infectious diseases  Nov 2000 
 - 1402-8 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0022-1899 
<br/><br/><label>Standard No.: </label>10.1086/315881  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Alleles<br/>Bacterial Outer Membrane Proteins--genetics<br/>Bordetella pertussis--genetics<br/>Electrophoresis, Gel, Pulsed-Field<br/>Pertussis Toxin<br/>Phylogeny<br/>Polymorphism, Genetic<br/>Time Factors<br/>Vaccination<br/>Virulence Factors, Bordetella--genetics