[escepticos] El SIDA fue creado en un laboratorio.

[Pedro J. Hdez]

El otro día encontraba una cita de Popper interesante

"But the striking fact which, in spite of their occurrence, disproves
the conspiracy theory is that few of these conspiracies are ultimately
successful. Conspirators rarely consummate their conspiracy.

Why is this so? Why do achievements differ so widely from aspirations?
Because this is usually the case in social life, conspiracy or no
conspiracy. Social life is not only a trial of strength between
opposing groups: it is action within a more or less resilient or
brittle framework of institutions and traditions, and creates--apart
from any conscious counter-action--many unforeseen reactions in this
framework, some of them perhaps unforeseeable. Popper, The Open
Society and its Enemies"

Fue en un post sobre las teorías de las conspiración con el H1N1
http://scienceblogs.com/effectmeasure/2009/11/swine_flu_conspiracy_theories.php?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+scienceblogs%2FAyaJ+%28Effect+Measure%29

que cita un artículo periodístico muy bien escrito y con mucho sentido
común --y buenos argumentos para sacarles en las discusiones
--inutilmente eso sí-- a los conspiranoicos--
http://www.theglobeandmail.com/news/national/on-swine-flu-conspiracy-theories/article1354651/

saludos




2009/11/19  <david en puntoque.net>:
> Si mal no recuerdo la conspiranoia se basaba en las muestras erróneas o
> falsas que habían expuesto en Francia (¿fue en Francia, el instituto
> Pasteur?, o me lío?), y que por arte de birlibirloque se convertían en
> prueba evidente de que era una invención.
>
>
> -----Mensaje original-----
> De: escepticos-bounces en dis.ulpgc.es [mailto:escepticos-bounces en dis.ulpgc.es]
> En nombre de JM Mulet
> Enviado el: jueves, 19 de noviembre de 2009 14:11
> Para: 'Lista Escépticos'
> Asunto: RE: [escepticos] El SIDA fue creado en un laboratorio.
>
> Las primeras muestras de sangre con virus del sida datan del año 1959, por
> lo que la tecnología del ADN recombinante, necesaria para producir o
> modificar un virus en el laboratorio, no estaba todavía desarrollada.
>
>
> Aquí te paso una referencia reciente sobre el origen del SIDA:
>
> Nature. 2008 Oct 2;455(7213):661-4.
>
> Direct evidence of extensive diversity of HIV-1 in Kinshasa by 1960.
> Worobey M, Gemmel M, Teuwen DE, Haselkorn T, Kunstman K, Bunce M, Muyembe
> JJ, Kabongo JM, Kalengayi RM, Van Marck E, Gilbert MT, Wolinsky SM.
>
> Ecology and Evolutionary Biology, University of Arizona, Tucson, Arizona
> 85721, USA. worobey en email.arizona.edu
>
> Comment in:
>
> Nature. 2008 Oct 2;455(7213):605-6.
>
> Human immunodeficiency virus type 1 (HIV-1) sequences that pre-date the
> recognition of AIDS are critical to defining the time of origin and the
> timescale of virus evolution. A viral sequence from 1959 (ZR59) is the
> oldest known HIV-1 infection. Other historically documented sequences,
> important calibration points to convert evolutionary distance into time, are
> lacking, however; ZR59 is the only one sampled before 1976. Here we report
> the amplification and characterization of viral sequences from a
> Bouin's-fixed paraffin-embedded lymph node biopsy specimen obtained in 1960
> from an adult female in Léopoldville, Belgian Congo (now Kinshasa,
> Democratic Republic of the Congo (DRC)), and we use them to conduct the
> first comparative evolutionary genetic study of early pre-AIDS epidemic
> HIV-1 group M viruses. Phylogenetic analyses position this viral sequence
> (DRC60) closest to the ancestral node of subtype A (excluding A2). Relaxed
> molecular clock analyses incorporating DRC60 and ZR59 date the most recent
> common ancestor of the M group to near the beginning of the twentieth
> century. The sizeable genetic distance between DRC60 and ZR59 directly
> demonstrates that diversification of HIV-1 in west-central Africa occurred
> long before the recognized AIDS pandemic. The recovery of viral gene
> sequences from decades-old paraffin-embedded tissues opens the door to a
> detailed palaeovirological investigation of the evolutionary history of
> HIV-1 that is not accessible by other methods.
>
> PMID: 18833279 [PubMed - indexed for MEDLINE]
>
>
>
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-- 
Pedro J. Hdez
Ecos del futuro
http://ecos.blogalia.com