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Monitoring the emergence of community transmission of influenza A/H1N1 2009 in England: a cross sectional opportunistic survey of self sampled telephone callers to NHS Direct
Objective To evaluate ascertainment of the onset of community transmission of influenza A/H1N1 2009 (swine flu) in England during the earliest phase of the epidemic through comparing data from two surveillance systems. Design Cross sectional opportunistic survey. Study samples Results from self samp...
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Main Authors: | , , , , , , , , , , , , , , , , , , , |
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Format: | Artigo |
Sprog: | Inglês |
Udgivet: |
BMJ Publishing Group Ltd.
2009
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Fag: | |
Online adgang: | https://ncbi.nlm.nih.gov/pmc/articles/PMC2733951/ https://ncbi.nlm.nih.gov/pubmed/19713236 https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1136/bmj.b3403 |
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