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Black Death Bacterium Identified: Genetic Analysis of Medieval Plague Skeletons...
ScienceDaily ^ | Monday, August 29, 2011 | via AlphaGalileo

Posted on 09/03/2011 7:46:55 PM PDT by SunkenCiv

A team of German and Canadian scientists has shown that today's plague pathogen has been around at least 600 years.

The Black Death claimed the lives of one-third of Europeans in just five years from 1348 to 1353. Until recently, it was not certain whether the bacterium Yersinia pestis -- known to cause the plague today -- was responsible for that most deadly outbreak of disease ever. Now, the University of Tübingen's Institute of Scientific Archaeology and McMaster University in Canada have been able to confirm that Yersinia pestis was behind the great plague...

Previous genetic tests indicating that the bacterium was present in medieval samples had previously been dismissed as contaminated by modern DNA or the DNA of bacteria in the soil. Above all, there was doubt because the modern plague pathogen spreads much more slowly and is less deadly than the medieval plague -- even allowing for modern medicine.

The international team of researchers has for the first time been able to decode a circular genome important for explaining the virulence of Y. pestis. It is called pPCP1 plasmid and comprises about 10,000 positions in the bacterium's DNA. The sample was taken from skeletons from a London plague cemetery...

The researchers were also able to show that the plague DNA from the London cemetery was indeed medieval. To do that, they examined damage to the DNA which only occurs in old DNA -- therefore excluding the possibility of modern contamination.

(Excerpt) Read more at sciencedaily.com ...


TOPICS: History; Science; Travel
KEYWORDS: antonineplague; blackdeath; blackplague; bubonicplague; ggg; godsgravesglyphs; helixmakemineadouble; plague; plagueofathens; plagueofjustinian; yersiniapestis
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full title:
Black Death Bacterium Identified: Genetic Analysis of Medieval Plague Skeletons Shows Presence of Yersinia Pestis Bacteria

1 posted on 09/03/2011 7:47:00 PM PDT by SunkenCiv
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2 posted on 09/03/2011 7:48:51 PM PDT by SunkenCiv (It's never a bad time to FReep this link -- https://secure.freerepublic.com/donate/)
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Yersinia pestis, direct fluorescent antibody stain (DFA), 200x magnification. (Credit: CDC/Courtesy of Larry Stauffer, Oregon State Public Health Laboratory)

CDC/Courtesy of Larry Stauffer, Oregon State Public Health Laboratory

3 posted on 09/03/2011 7:48:56 PM PDT by SunkenCiv (It's never a bad time to FReep this link -- https://secure.freerepublic.com/donate/)
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To: StayAt HomeMother; Ernest_at_the_Beach; 1010RD; 21twelve; 24Karet; 2ndDivisionVet; 31R1O; ...

 GGG managers are SunkenCiv, StayAt HomeMother & Ernest_at_the_Beach
This reminds me, I have to pick up some more kleenex.

To all -- please ping me to other topics which are appropriate for the GGG list.


4 posted on 09/03/2011 7:49:55 PM PDT by SunkenCiv (It's never a bad time to FReep this link -- https://secure.freerepublic.com/donate/)
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To: SunkenCiv

Very interesting

5 posted on 09/03/2011 7:50:44 PM PDT by gusopol3
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To: gusopol3

Bookmark


6 posted on 09/03/2011 7:53:25 PM PDT by Publius6961 (My world was lovely, until it was taken over by parasites.)
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To: SunkenCiv

Later


7 posted on 09/03/2011 7:56:13 PM PDT by doc1019 (You do not need a parachute to skydive. You only need a parachute to skydive twice.)
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To: SunkenCiv
Above all, there was doubt because the modern plague pathogen spreads much more slowly and is less deadly than the medieval plague

Why is this a mystery? Besides the obvious sanitation and living condition differences, the folks that lived through had a genetic reason for living through it. Those that died genetically are much less represented today than they were back then.

8 posted on 09/03/2011 7:57:27 PM PDT by Malsua
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To: SunkenCiv

I am still not sure from reading these articles if the plague might of been a very virulent strain or that genetic resistance in the survivors just increased over time.


9 posted on 09/03/2011 7:59:26 PM PDT by dog breath
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To: SunkenCiv

On a related note, did you hear about the plague researcher at the University of Chicago who died from it a couple of years ago?


10 posted on 09/03/2011 8:00:39 PM PDT by aruanan
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To: SunkenCiv

The prairie dogs all around me have it. ;-)


11 posted on 09/03/2011 8:19:41 PM PDT by familyop (cbt. engr. (cbt), Army NG, '89-' 96)
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To: aruanan
Researcher's Death From Plague Prompts Warning

CDC urges lab workers to wear protective gear after 2009 fatality at Illinois university

12 posted on 09/03/2011 8:20:54 PM PDT by blam
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To: SunkenCiv

In November and early December 1970, I spent 24 days in a military hospital in Vietnam after contracting bubonic plague from a batch of defective vaccine. When I was released I weighed 65 pounds less that the day I entered. Plague is a very painful hemoghagic disease. It took 10 days for the doctors to identify what I had. None had ever seen a case before.


13 posted on 09/03/2011 8:23:57 PM PDT by BuffaloJack (2012 is the opportunity to get rid of Obama and his Empire of Lies.)
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To: BuffaloJack

Wow. Just wow.

You need to write up that story.


14 posted on 09/03/2011 8:25:02 PM PDT by combat_boots (The Lion of Judah cometh. Hallelujah. Gloria Patri, Filio et Spiritui Sancto.)
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To: BuffaloJack

Lost 65 lbs.? How much did you weigh initially?


15 posted on 09/03/2011 8:28:41 PM PDT by OldPossum
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To: BuffaloJack

Thank God they finally figured out what it was!


16 posted on 09/03/2011 8:30:20 PM PDT by Lil Flower (American by birth. Southern by the Grace of God! ROLL TIDE!!)
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To: SunkenCiv
Some historians believe the Black Death was the first major event that led to modern Western civilization, because it greatly increased the value of workers who were able to relocate, demand better conditions, and demand better compensation.

Personally, I believe the first event was the rediscovery of the Justinian Code.

17 posted on 09/03/2011 8:39:29 PM PDT by Moonman62 (The US has become a government with a country, rather than a country with a government.)
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To: SunkenCiv

18 posted on 09/03/2011 8:42:41 PM PDT by JoeProBono (A closed mouth gathers no feet)
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To: SunkenCiv

Very interesting........


19 posted on 09/03/2011 8:55:40 PM PDT by The_Media_never_lie
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To: SunkenCiv

Funny - I thought T.F. (terminal flatulence)was the cause of all those deaths ;o)


20 posted on 09/03/2011 9:19:27 PM PDT by QBFimi (When gunpowder speaks, beasts listen.)
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