Mortality rates are estimated anywhere between 30% and 100% without treatment. Many estimates are towards the top end of this range, 80% to 95%. Treatments are available (mostly antibiotics) and are generally effective. Mortality rate where adequate treatment is administered within 24 hours can be 11%. (Either “just 11%” or “11%!” depending on whether you’re counting up from 0% or down from 95%.)
Plague in Madagascar
124 people have already been killed by the plague in Madagascar. But this is just a particularly bad year.
Every year for the last nearly 40 years, Madagascar has a seasonable outbreak of plague. This is good news in that treatment of the disease and management of its spread is well understood.
Spread of Plague
Bubonic plague, which is more common, is spread mostly by flea bites and is not particularly contagious between humans. However, it can be transmitted between humans and when it infects the lungs to become pneumonic plague, it is far more infectious.
The good news is that it probably isn’t really a major threat even with impaired sanitation in Cape Town likely from water shortages.
What about Cholera?
Despite my concerns about cholera arising out of our water crisis, it is worth noting that the 2008-2009 outbreak in Zimbabwe claimed under 5,000 lives. As tragic as each of those deaths is, it is not the hundreds thousands or millions experienced in centuries past.
From a societal perspective, these levels of pandemics are very serious. The impact on the insured population, especially when weighted by sums assured and death claims, is still likely very low. (Although catastrophe reinsurance will not cover these days. QS and Surplus are the key lines of defence here from a reinsurance perspective.)
(If you like the idea of working tirelessly to rid the word of pandemics, check out Pandemic Board Game. If you lean more evil mastermind direction, Plague is a game where the goal is to infect the entire world.)