| Title | Respiratory viral infections in institutions from late stage of the first and second waves of pandemic influenza A (H1N1) 2009, Ontario, Canada. | ||
| Author | Asner, Sandra; Peci, Adriana; Marchand-Austin, Alex; Winter, Anne-Luise; Olsha, Romy; Kristjanson, Erik; Low, Donald E; Gubbay, Jonathan B | ||
| Journal | Influenza Other Respir Viruses | Publication Year/Month | 2012-May |
| PMID | 22353417 | PMCID | PMC4941672 |
| Affiliation | 1.The Hospital for Sick Children, Toronto, ON, Canada. | ||
We report the impact of respiratory viruses on various outbreak settings by using surveillance data from the late first and second wave periods of the 2009 pandemic. A total of 278/345(78.5%) outbreaks tested positive for at least one respiratory virus by multiplex PCR. We detected A(H1N1)pdm09 in 20.6% of all reported outbreaks of which 54.9% were reported by camps, schools, and day cares (CSDs) and 29.6% by long-term care facilities (LCFTs), whereas enterovirus/human rhinovirus (ENT/HRV) accounted for 62% outbreaks of which 83.7% were reported by long-term care facilities (LCTFs). ENT/HRV was frequently identified in LTCF outbreaks involving elderly residents, whereas in CSDs, A(H1N1)pdm09 was primarily detected.