Summary
"So other than broadly saying 'Yes, it's better to have an exact match' you can't say very much about what this is likely to mean in terms of vaccine efficacy," he said, noting that some years mismatched vaccines are later shown to have provided good protection against circulating viruses.
"It is often portrayed as a kind of 'on' or 'off' kind of thing. There's a match or there's a mismatch. And in that kind of situation, it's a very discomforting presentation for the public health community," says Dr. Keiji Fukuda, co-ordinator of the World Health Organization's Global Influenza Program.See the full content of this document
Extract
Mismatch Better Than No Vaccine
By Helen Branswell
TORONTO -- As every influenza season hits its stride, blaring headlines declare that there is a mismatch between strains cove...See the full content of this document
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