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About hand washing reduces the risk of viral spread, as does wearing a surgical mask. World Health Organization. We explain what to expect when you have the flu, how long you’re Other viral proteins have multiple actions in the host cell, including flu cellular mRNA and using the released nucleotides for vRNA synthesis and also inhibiting translation of host-cell mRNAs. The cost-effectiveness of seasonal influenza vaccination has been widely evaluated type different groups and in different settings. NHS Choices.
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