Volume 13, Number 12—December 2007
Research
Swine Influenza (H3N2) Infection in a Child and Possible Community Transmission, Canada
Joan L. Robinson*†
, Bonita E. Lee*, Jagdish Patel‡, Nathalie Bastien§, Karen Grimsrud¶, Robert F. Seal†, Robin King‡, Frank Marshall#, and Yan Li†§
, Bonita E. Lee*, Jagdish Patel‡, Nathalie Bastien§, Karen Grimsrud¶, Robert F. Seal†, Robin King‡, Frank Marshall#, and Yan Li†§Table 2
Clinical features and hemagglutination-inhibition reaction of positive antiserum from 9 members of 3 different households of a communal farm with recently circulating swine influenza (H3N2) virus A/Canada/1158/2006*
| Household | Age, y | Sex | A/Wisconsin/ 67/2005 titer | A/New Caledonia/ 20/99 titer | A/Canada/ 1158/2006 titer | Swine exposure | Clinical features |
|---|---|---|---|---|---|---|---|
| A (index patient) | 0.6 | M | <4 | <4 | 256 | None | Hospitalization with ILI and isolation of swine influenza |
| A† | 1 | M | <4 | <4 | 256 | None | None (URI coincident with ILI in index case) |
| A | 35 | F | <4 | <4 | 32 | None | None |
| A | 38 | M | 8 | <4 | 32 | <1 h/wk | None |
| A | 8 | M | <4 | <4 | 64 | <1 h/week | None |
| B | 7 | M | 32 | <4 | 32 | <1 h/wk | None |
| C | 8 | M | 4 | <4 | 64 | >1 h/week | None |
| C | 5 | M | <4 | <4 | 128 | <1 h/week | none |
| C | 3 | F | <4 | <4 | 128 | None | ILI 1 mo before index case |
*URI, upper respiratory illness; ILI, influenza-like illness.
†Symptomatic sibling.
