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Reduction in the titre of egg- and cell-passaged A/H3N2 isolates from 2013–14 in the presence and absence of oseltamivir. The fold reduction in titre in the presence of 40 nM oseltamivir was recorded. The mean fold reductions was significantly different between egg-passaged and cell-passaged viruses (unpaired t-test, P=0.0221).
