Preferential lower respiratory tract infection in swine-origin 2009 A(H1N1) influenza.
We report a case of 2009 influenza A(H1N1) virus infection in which virus was detected predominantly in specimens from the lower respiratory tract but was absent or at very low levels in nasopharyngeal swab samples. This presentation suggests that, in certain hosts or for particular variants of 2009 A(H1N1) virus, the lower respiratory tract may be the preferred site of infection.
Yeh
Ellen
E
Departments of Pathology, Stanford University School of Medicine, Stanford, California 94305-5324, USA.
Luo
Robert F
RF
Dyner
Laurale
L
Hong
David K
DK
Banaei
Niaz
N
Baron
Ellen Jo
EJ
Pinsky
Benjamin A
BA
D000818:Animals; D002648:Child; D005260:Female; D006801:Humans; D053118:Influenza A Virus, H1N1 Subtype / Q000302:isolation & purification*; D007251:Influenza, Human / Q000473:pathology* / Q000821:virology*; D008168:Lung / Q000821:virology*; D008297:Male; D009305:Nasopharynx / Q000821:virology; D012137:Respiratory System / Q000821:virology*