What we scientists have discovered about how each age group spreads Covid-19 | Petra Klepac

For some, workplaces are hotspots. For the over-65s, it's shops and restaurants. We urgently need to change our behaviour

• Petra Klepac is assistant professor of infectious disease modelling at the London School of Hygiene and Tropical Medicine
• See all our coronavirus coverage

Early detection and early response. In an ideal world, this will contain an outbreak of infectious disease and prevent it from establishing in a population and becoming an epidemic.

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