Butler, Declan <br/><br/>
Urgent search for flu source.  [electronic resource] 

 -  Nature  Apr 2013 
 - 145-6 p.  digital 
<br/><br/> Publication Type: News 
<br/><br/><label>ISSN: </label>1476-4687 
<br/><br/><label>Standard No.: </label>10.1038/496145a  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Animals<br/>Animals, Domestic--virology<br/>Animals, Wild--virology<br/>Birds--virology<br/>Contact Tracing--statistics & numerical data<br/>Disease Reservoirs--veterinary<br/>Humans<br/>Influenza A virus--genetics<br/>Influenza in Birds--epidemiology<br/>Influenza, Human--epidemiology<br/>Zoonoses--epidemiology