Monday, October 27, 2014

The Numbers - Ebola

Primary countries where Ebola is active.  The table indicates population, reported cases and the percent of population the reported cases represent.

Country
Population
Cases
% of Population
Guinea
11,750,000
1519
0.01%
Liberia
4,300,000
4249
0.10%
Sierra Leone
6,000,000
3410
0.06%
·       I’m just trying to evaluate magnitude here.  Other metrics might be used – i.e. deaths, active cases, etc.  I also recognize that a time metric is not included.

Now… consider the US with a population of 310,000,000 (310 million).  Apply the average percent of population for the three countries noted above of 0.06% and you get –
186,000 cases

That is one hundred eighty six thousand cases.  The US would have to have this many cases to be comparable on a percentage of the population to the cases in the outbreak countries.

Note – that is zero point zero six percent (0.06%).  It is not six percent (6%).  

I’ll let you apply that 0.06% percent to a few other populations:

India: 1.25 billion
China: 1.357 billion
Russia: 143 million
Indonesia: 240 million

Travel to the US:

The annual number of visitors from other countries to the US.  
Visitors to US – top 15 countries.  (2013 statistics - http://travel.trade.gov/view/m-2013-I-001/index.html)

CANADA
23,387,275
MEXICO
14,342,722
UNITED KINGDOM
3,835,308
JAPAN
3,730,287
BRAZIL
2,060,291
GERMANY
1,916,471
CHINA (EXCL HK)
1,806,553
FRANCE
1,504,654
KOREA, SOUTH
1,359,924
AUSTRALIA
1,205,060
INDIA
859,156
ITALY
838,883
VENEZUELA
788,069
COLOMBIA
748,116
ARGENTINA
686,098

Note:  A large number of Canada and Mexico visitors enter the country by land.  Most of the other countries a large percentage of the visitors travel by air.
What is the threshold for cutting off travel from a particular country?  I honestly don’t know.