| http://www.w3.org/ns/prov#value | - Once a day, the research nurses contacted participating units to determine whether any patients or HCWs had presented with ILI. An ILI case was defined as a patient or HCW with a rectal or axillary temperature of at least 37.8??C in the absence of antipyretic drug therapy, with cough or sore throat.18,19 All patients with ILI were included whatever the timing of ILI onset.
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