Infographic: 10 effective ways to prevent seasonal flu
Currently, there are 4 different strains of influenza viruses: influenza A, B, C and D. Of these, strains A and B are the more dangerous group of viruses, spreading and causing disease in humans, causing annual seasonal flu epidemics. Seasonal flu spreads from person to person very quickly, mainly through respiratory secretions, which are droplets when an infected person coughs, sneezes or talks.
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