Pyhälä, R <br/><br/>
Protection by a polyvalent influenza vaccine and persistence of homologous and heterologous HI antibodies during a period of two epidemic seasons.  [electronic resource] 

 -  The Journal of hygiene  Apr 1980 
 - 237-45 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0022-1724 
<br/><br/><label>Standard No.: </label>10.1017/s0022172400026735  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Adult<br/>Age Factors<br/>Antibodies, Viral--isolation & purification<br/>Disease Outbreaks<br/>Female<br/>Hemagglutination Inhibition Tests<br/>Humans<br/>Influenza A virus--immunology<br/>Influenza Vaccines--immunology<br/>Influenza, Human--immunology<br/>Male<br/>Middle Aged