From Virlogy Blog:
PMRV joins XMRV as possible etiologic agent of chronic fatigue syndrome
And this may help people understand why XMRV and PMRV are almost identical.
In a nutshell? Xenotropic (XMRV or
Xenotropic
Murine Leukemia Virus
Related
Virus) means the MLV infects humans but not mice. Polytropic (PMRV, or
Polytropic
Murine Leukemia Virus
Related
Virus) means it can infect both. Or better reported by Mindy at CFS Central: "Polytropic viruses infect the original host—in this case mice—as well as
other species, whereas xenotropic viruses like XMRV infect species
other than the original host."
No worries. Very soon, they will assign a better gammaretrovirus name.
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