Ebola: Graph - cumulative cases & deaths using WHO updates - November 6, 2014

[Nordica]

Source: WHO ebola updates - 11 August 2014

http://www.who.int/csr/don/archive/disease/ebola/en/

[Nordica]

Re: Ebola: Graph - cumulative cases & deaths using WHO updates - August 11, 2014



Source WHO Ebola updates - 11 August 2014

http://www.who.int/csr/don/archive/disease/ebola/en/

[Pirante]

Re: Ebola: Graph - cumulative cases & deaths using WHO updates - August 11, 2014

Interesting.

Guinea's numbers look strange.

The infection rate is relatively low, with the death rate relatively high. The curve looks wrong compared to the others. It is much much flatter.

And actually, going by the curves themselves, it seems that the infection rate and death rate accelerate with each new country.

Anyone else seeing that?
Example, Liberia, despite having started about 2 weeks after SL, appears to have just passed it in deaths.
Additionally it appears SL took 12 weeks to make 600 infected, and Liberia reached that in about 10.

[Nordica]

Re: Ebola: Graph - cumulative cases & deaths using WHO updates - August 11, 2014

Interesting.

Guinea's numbers look strange.

The infection rate is relatively low, with the death rate relatively high. The curve looks wrong compared to the others. It is much much flatter.

And actually, going by the curves themselves, it seems that the infection rate and death rate accelerate with each new country.

Anyone else seeing that?
Example, Liberia, despite having started about 2 weeks after SL, appears to have just passed it in deaths.
Additionally it appears SL took 12 weeks to make 600 infected, and Liberia reached that in about 10.

Yes Guinea looks strange due to that the number decrease in the WHO report, I guess that is because they have corrected wrong reporting. (Compare WHO July 1st update with July 15th)

The mortality is very different between the countries:
Guinea 74 %, Sierra Leone 43% and Liberia 54%, Total 55%.
I also wonder why, maybe due to different reporting in the different countries.

[alert]

Re: Ebola: Graph - cumulative cases & deaths using WHO updates - August 11, 2014

I can think of a few reasons for the discrepancy in CFR. Liberia and Sierra Leone both appear to have significant numbers of fatal cases that are not in the reporting at all because they did not seek medical attention but died at home or in the streets. Both of those countries also have a large number of recent cases, who may still be ill (and some of them will die).

Guinea, by contrast, has very few actively ill cases (perhaps fewer than 20 in the entire country), and very few recent cases (11 total in the period from August 5-9), so they seem to be reporting a more accurate CFR.

I think the shorter outbreak time in Liberia and Sierra Leone might also have resulted in the inclusion in the probable and suspected categories of cases that are not in fact Ebola, and would therefore have a lower CFR.

[Donners]

Re: Ebola: Graph - cumulative cases & deaths using WHO updates - August 11, 2014

There's an interesting article about the CFR here:

http://epidemic.bio.ed.ac.uk/ebolavirus_fatality_rate

Basically, it's pretty unreliable at this stage given the inconsistencies in testing methods and the spate of recent cases.

[Nordica]

Re: Ebola: Graph - cumulative cases & deaths using WHO updates - August 13, 2014



Source: WHO ebola updates - 13 August 2014

http://www.who.int/csr/don/archive/disease/ebola/en/

[Nordica]

Re: Ebola: Graph - cumulative cases & deaths using WHO updates - August 13, 2014




Source: WHO ebola updates - 13 August 2014

http://www.who.int/csr/don/archive/disease/ebola/en/

[JimO]

Re: Ebola: Graph - cumulative cases & deaths using WHO updates - August 13, 2014

I am a bit concerned about Guinea. I believe they were on the verge of extinguishing the outbreak in late June to early July. They reported 303 deaths through June 30th and only an additional 11 deaths between June 30th and July 23rd. Liberia and SL started reporting significant deaths in mid June, and then the NGOs started pulling out. Guinea then reported the following new deaths:

7/27 - 20 (avg. 5 per day)
7/30 - 7 (2.3 per day)
8/01 - 12 (6 per day)
8/04 - 5 (1.7 per day)
8/06 - 4 (2 per day)
8/09 - 6 (2 per day)
8/11 - 4 (2 per day)

So, they were reporting an average of one death every two days in the first three weeks of July after the outbreak appeared to be nearly over. Then after the attention shifted to Liberia and SL, the death rate has increased to more than two deaths per day since then.

Early in any ebola outbreak, losing two patients per day and continuing to have new cases weekly after more than six months would be a serious concern. I think there is a potential for things to still get out of control in Guinea if their situation is overshadowed by the disasters in Liberia and SL. I hope they have things well in hand, but with new cases appearing weekly, they still need help and I am concerned they won't get it.

[JimO]

Re: Ebola: Graph - cumulative cases & deaths using WHO updates - August 13, 2014

I should have also pointed out that Guinea reported 40 new cases between July 27th and August 11th, an average of nearly 3 new cases every day.

[Nordica]

Re: Ebola: Graph - cumulative cases & deaths using WHO updates - August 15, 2014



Source: WHO ebola updates - 15 August 2014

http://www.who.int/csr/don/archive/disease/ebola/en/

[Nordica]

Re: Ebola: Graph - cumulative cases & deaths using WHO updates - August 15, 2014



Source: WHO ebola updates - 15 August 2014

http://www.who.int/csr/don/archive/disease/ebola/en/

[Nordica]

Re: Ebola: Graph - cumulative cases & deaths using WHO updates - August 19, 2014



Source WHO Ebola updates - 19 August 2014

http://www.who.int/csr/don/archive/disease/ebola/en/

[Nordica]

Re: Ebola: Graph - cumulative cases & deaths using WHO updates - August 19, 2014



Source WHO Ebola updates - 19 August 2014

http://www.who.int/csr/don/archive/disease/ebola/en/

[JimO]

Re: Ebola: Graph - cumulative cases & deaths using WHO updates - August 19, 2014

I thought it might be useful to look at the average deaths reported per day based on the WHO reports. This might not be the best representation of the data, but I simply took the number of deaths reported and divided by the days that the report covered.