Alexander H Russell,
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Nicholas Bennett misrepresented what I stated regarding my argument that 'HIV' is a misinterpreted 'HERV':
"Mr Russell has missed the point. I shall re-phrase: can he supply the Genbank Accession number and reference the sequence(s) of the HERV(s) which he is proposing activates to create the HIV genome deposited under accession 1906382? If such sequences are not intact (i.e. exist as scattered fragments) can he propose a mechanism by which they would be expressed and recombine to form the full-length sequence? If not, then I politely suggest he has no evidence whatsoever to support his view that HIV is a HERV!"
The 'HIV' genome model is science fiction and absurd nonsense. There is no such thing as a definitive 'HIV' isolate to begin with – so how can there be an 'HIV' genome? There is no 'HIV' genome. When it is alleged that 'HIV's recovered from different parts of the same body have differing genomes - which is the true 'HIV' genome? No two identical genomes have ever been recovered - not even from the same individual - so what are they talking about? Typically: viruses which cause disease have identical genomes. There is no gold standard 'HIV' genome because there is no gold standard 'HIV' isolate and no gold standard 'HIV' test.
"I have pointed out previously that animal retroviruses are sexually transmitted, and in a preferentially male to female pattern . I have also shown that barrier contraception can prevent HIV transmission, which suggests it's an endogenous sexually transmitted retrovirus .
1. Portis et al J Virol. 1987 Apr;61(4):1037-44. 'Horizontal transmission of murine retroviruses.'
2. de Vincenzi N Engl J Med. 1994 Aug 11;331(6):341-6. "A longitudinal study of human immunodeficiency virus transmission by heterosexual partners. European Study Group on Heterosexual Transmission of HIV."
These references are pure supposition and speculation and do not prove that retroviruses are sexually transmitted – they are merely assumed to be so: hardly what constitutes concrete evidence. How does Bennett suppose the maedi-visna virus is transmitted?
If the paper by de Vincenzi were really true we would have had millions of heterosexual cases of 'HIV' infections in the West by now – 20 years on - but we have nothing of the kind. This alone proved that 'HIV' has to be an endogenous epiphenomenon ('HERV') and is (re)activated in the original 'high-risk' groups whose specific disease conditions cause 'HERV' (aka:'HIV') expression.
Padian et. al. seemingly contradicts de Vincenzi emphasising the insignificance of heterosexual intercourse in transmitting 'HIV'. In this 10 year study, the authors state: male-to-female transmission was approximately eight times more efficient, than female-to-male transmission and male-to-female per contact infectivity was estimated to be 0.00090.(1) Inadvertantly, Padian et. al. support my thesis that 'HIV' is a 'HERV' and not an exogenously acquired (sexually transmitted) retrovirus.
Reference:(1) Padian NS, Shiboski SC, Glass SO, Vittinghoff E. Heterosexual transmission of human immunodeficiency virus (HIV) in Northern California: Results from a ten-year study. Am J Epidemiol 1997;146:350-357.
Of interest Bennett may care to read The Perth Groups challenge to Peter Duesberg on the putative 'HIV' genome:
Papadopulos-Eleopulos et. al. Reply to Duesberg (II); Eleni Papadopulos-Eleopulos, Valendar F. Turner, John M. Papadimitriou & David Causer, Continuum, February-March 1997:
We gratefully acknowledge Peter Duesberg's criticisms of our paper 'HIV Isolation: Has it really been achieved?'. (1) Before responding it will be useful to define some terms and objectives.
1. 19 'HIV' genomes
Duesberg: "...the weakest point of the HIV-non-existentialists is their failure to explain the origin of '19 sequences encompassing the full -length" 10-kb-HIV-1 genome" and "19 full-length HIV genomes"…".
(a) Let us repeat that the claim of the existence of "19 sequences encompassing the full length, 10-kb-HIV-1 genome", "19 full-length HIV genomes" is not one of our making but that of the HIV experts we quote. The same experts accept that of the "19 full-length HIV genomes", no two are the same either in sequence or even in length; (b) The question we set out to answer in our critique was not what is the origin of the 19 full-length HIV-1 sequences but does the presently available data prove that these sequences represent the genome of a unique, exogenous retrovirus, HIV? The answer, we repeat, is NO. Nonetheless, although it was not our task to determine the origin of these sequences, we did present a number of alternative mechanisms that science offers as a "rational origin for such sequences" in addition to "viruses or other infectious agents".
2. Odds of assembly
"Remember the odds of coming up with even one nucleotide sequence of 9150 bp by chance are astronomically low namely, 1 in 49150 which is very close to 0."
It is apparent that we and Peter Duesberg are referring to two entirely different systems, one completely random and the other heavily biased by cell and culture conditions. True, the probability of assembling a particular sequence of RNA (DNA) of 9150 bases randomly selecting each of the four nucleotides is one in 49150 However, this statistical reasoning bears no resemblance to how nucleic acid polymers are assembled either in vivo or in vitro and thus on the probability of finding a particular unique sequence. That this is the case is best illustrated by Spiegelman’s minivariant, a 220-nucleotide stretch of RNA of unique length and sequence which was discussed in our Continuum paper. The probability of assembling such a unique RNA stretch by chance is 1 in 4220, also "very close to 0"" yet, under certain conditions in the laboratory, the Spiegelman minivariant is frequently produced indicating that the assembly of nucleotides is anything but a random process. Furthermore, the 19 unique sequences do not have to be assembled from the four, individual nucleotides. They may result, for example, by recombination of:
(a) stretches of pre-existing cellular DNA sequences;
(b) stretches of DNA sequences of endogenous retroviruses which form 1% of the cellular DNA, a phenomenon accepted to take place quite frequently and to result in the assembly of novel genomes. It is also accepted that the conditions affect the recombination both qualitatively and qantitatively.
It is significant that as far back as 1985 both Gallo and Montagnier accepted that it is not possible to generate "HIV" and the effects attributed to it unless the cells are activated (stimulated) and that this year Chermann and his colleagues showed that the infected cultures contain fragments of the "HIV genome" but after PHA stimulation there is an increase in the "full-length genome" and a concomitant decrease in the fragments. (2) Whatever the odds may be of obtaining by chance the conditions necessary to generate "even one nucleotide sequence of 9150 bp", it is certain not 1 in 49150.
3. Viral genome
Duesberg: "The non-HIV-existentialists also fail to realize that available isolation efforts have already adequately identified the 9150 bases as the genome of a virus".
ln our extensive search of the HIV literature we could not find even one reference, (although it is possible we may have missed some), in which the HIV genome was reported to of 9150 nucleotides. The closest length was reported Montagnier’s group who, in 1984, reported it to be 9.1 to 9.2 kbases and, in 1985, as 9193 bases. (3,4) lf the 9150 base DNA is the genome of a virus then an absolutely necessary but not sufficient condition is that the virus in all infected individuals will have a length of 9150 bases. Yet, two HIV genomes of the same length have yet to be reported. More importantly, the length of an RNA (DNA) fragment, no matter how often such a fragment is detected, provides no information regarding its origin. The only way to prove it belongs to a unique virus is to isolate a viral particle and demonstrate it has a genome of 9150 bases. This has not been done and the"available isolation efforts" do not contain even suggestive evidence let alone proof that a 9150 base long RNA is a constituent of a particle, any particle much less a viral particle.
Competing interests: None declared