Some people think there’s a choice of living more freely and not having the virus spread uncontrollably and causing widespread illness and deaths. But there isn’t, until enough of us are vaccinated.
Exponential growth, such as in a viral epidemic, starts deceptively slowly, then quickly balloons. A mathematician explains the importance of early action and the costs of delay.
South African President Cyril Rampahosa, centre, ordered a 21-day lockdown.
GCIS/Flickr
The notion that there is a binary choice between the economy and the medically optimal strategy is wrong.
A health-care worker wears virus protective gear at a treatment center in Bikoro Democratic Republic of Congo, on May 13, 2018.
(AP Photo/John Bompengo)
History, and math, tell us that the Ebola virus spreads exponentially quickly. This means Ebola is a global problem and all nations need to rally – to stop the epidemic fast.