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Bacteria that can live for decades and kill 70% of infected humans (2016) (npr.org)
141 points by Mz on March 1, 2017 | hide | past | favorite | 32 comments


"And the death rate can be high — "up to 70 percent,""

"In parts of northeast Thailand, up to half of the population has been infected at some point"

That would mean that, out of every 100 people born, 75 would get infected, of which 50 die, leaving 25 who never got infected and 25 who survived.

That would mean this disease kills half of those born. Yet, this disease, which has visible symptoms, isn't well known? => I expect that "up to 70 percent" is based on an exceptional and small sample (for comparison: under five child mortality rate is 1:6 in Angola, more like 1:10 in south east Asia)


My reading of that was that "up to 70% mortality rate" refers to specific groups. That is, mortality might be 20-30% for adults, but 70% for infants, or something to that effect.


How did you deduce those figures? 50% of 100 is 50. 70% of 50 is 35.

Meaning: 1) 50 out of 100 people were infect, 2) 35 of which would die, 3) leaving 50 who didn't get infected, 4) leaving 15 who survived.


> How did you deduce those figures?

Probably by inferring "up to half of the <living> population has been infected at some point".

In your version, only a quarter of the <living> population has been infected at some point since you have 15 infected out of 65 living people.


Ah, I see it now. Apologies!


The death rate is likely to be far lower in places where the disease is endemic. People will evolve partial immunity, and the pathogen may evolve to be less deadly since it's rarely advantageous to kill the host.


Doesn't "death rate" refer to people who have a confirmed infection? Which of course is much lower number than the number of people born?


With permafrost melting out bacteria and virii that has not been seen in the biosphere for 100k years + I wonder what new adventures on the plague front lies in wait for us.


I'm far more concerned about Nitrogen, Phosphorus, and Salinity in Soil + influenza pandemics than I am about a soil bacteria....

I'm not worried about this and neither is my father, an agricultural soil chemist of 30 years. This article is old.

There's a vaccine under development at Exeter too.....


there's a vaccine developed for this already: https://www.journals.elsevier.com/vaccine/news/new-vaccine-c...


Without treatment it can kill within 48 hours. It sounds like a weapon, easy to store and lethal except that basic hygiene can prevent needed the ABs in the first place.


Just watched the preview for Alien Covenant. Got a little nervous there.


It kills itself to fast.


nature needs to try harder


clickbait title.

The bacteria is Burkholderia pseudomallei. A tropical disease with 165k cases each year with 90k deaths. A decently high mortality rate - but this is in 3rd world tropics without proper testing/antibiotic sensitivities. When properly treated the mortality is 1/10.

But I've been drinking pretty heavily tonight, so who knows. Maybe you have it right now.


Ok, we changed the title.


> When properly treated the mortality is 1/10

Isn't that still on the really high side of things?


Thats what I'm thinking too. And the infection rate of 165K isn't too low either for something that will 1/10. I know there are lots of thing killing a lot more people but this one doesn't look trivial specially if somehow the infection rate spreads.


It is. Consider the word "decimated."


Thanks, I did learn something today.

https://en.wikipedia.org/wiki/Decimation_%28Roman_army%29

"A cohort (roughly 480 soldiers) selected for punishment by decimation was divided into groups of ten. Each group drew lots (sortition), and the soldier on whom the lot fell was executed by his nine comrades, often by stoning or clubbing."

"The procedure was a pragmatic attempt to balance the need to punish serious offences with the realities of managing a large group of offenders."


As the article says, its on par with rabies, which isn't nothing. It happens to occur mostly in poor areas, without adequate health resources, so we don't hear as much about it. The limited antibiotics it responds to is the most concerning part.


The comparison with rabies is the number of worldwide infections.

For rabies, postexposure vaccination is extremely effective in preventing infection and death. To the point that failures are notable:

https://academic.oup.com/cid/article/50/1/77/312471/Failure-...

Poor access to care/vaccines means that a lot of people still die from rabies, but it is the access that is the problem, not the effectiveness of the treatment.


Especially if it can kill in 48 hours, it doesn't leave a lot of time for the patient to seek help and to diagnose it.


I agree that the part about surviving for "decades" is clickbait-y, as they only showed it would last 16 years, but if it can:

* Survive for 16 years in distilled water,

* Infect humans and non-human animals,

* Feed off of amoebas,

* And potentially survive in the wild in the US,

as the article claims, then that is one badass microbe. It's the combination of all these things that makes this bug a bit frightening, even if the overall risk is fairly low. Even the combination of pathogenicity in mammals with being able to feed off of (I'm assuming they mean 'infect' when they say that) amoebas is rather unusual, AFAIK, although I'm not a biologist.


>When properly treated the mortality is 1/10

Still sounds, you know, very high.


I'm surprised NPR would do clickbait, can the White House influence NPR in any way?


LOL! It would take about 5 minutes of listening to NPR to know the answer is "no" :-)

I consider myself pretty liberal, but I won't even donate money to NPR because I think they're too biased.


> But I've been drinking pretty heavily tonight, so who knows.

Which given WHO data, means that you should be much more fearful of "Cirrhosis due to alcohol use" than anything to do with the disease in question.

I think we can best summarize it by saying... it sucks if you get it, and if you're traveling to an area where it's know to be more common you should be mindful of it... but you shouldn't lose sleep over it otherwise. Or as you said... clickbait title.

Looks like its not a first choice for weaponizing either (thought it's not a completely unsuitable one either).


bacteria is plural

should be "a bacterium"

or "bacteria that can live for decades ..."

not "a bacteria"


"a bacteria" refers to the species, not individuals of the species.


Why is this clickbaity, non-technical article from 2016 on the front page of HN?


(January 2016)




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