Articles on Second wave

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The U.S. as a whole is facing a huge surge in coronavirus cases, but the differences between states like New York and Florida are striking. Kena Betancur/1207979953 via Getty Images

The US isn’t in a second wave of coronavirus – the first wave never ended

The recent spike in new coronavirus cases in the US is not due to a second wave, but simply the virus moving into new populations or surging in places that opened up too soon.
Mathematical modelling can inform government approaches to controlling the spread of COVID-19 during Phase 2. (Shutterstock)

Simulations help reduce the effects of a second wave of COVID-19

As provinces throughout Canada start to enter Phase 2 of its reopening, mathematical models can help predict and control the spread of COVID-19 with the help of contact tracing.
A pandemic from a century ago doesn’t necessarily chart the course of the pandemic happening now. National Photo Company Collection/Library of Congress Prints and Photographs Division/Library of Congress Prints and Photographs Division

Compare the flu pandemic of 1918 and COVID-19 with caution – the past is not a prediction

Differences in the viruses' biology and societal contexts mean there's no guarantee today's pandemic will mirror the 'waves' of infection a century ago.

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