a reply to: ikonoklast
Great work on the charts as always. This has been an ongoing issue....there have been no systematic empirical studies conducted on human viral
shedding of ebola . Hence, there is no data to support the statement . I addressed this in a previous post and will place below with some other
sources. Dr. Bausch just answered a similar question in a lecture given at Case Western a few days ago. One last fact, it attacks cells differently
than HIV, "Ebola’s sucker punch is its speed of replication. At the time of death, a patient can have 1 billion copies of the virus in one cubic
centimeter of blood. HIV, only infects two types of immune cells, Ebola first infects white blood cells that disable the body’s ability to destroy
foreign substances, then seizes nearly every cell type.It’s a systemic viral infection throughout your body as opposed to an infection of just your
immune system,” Saphire said. “Patients may die before they’re able to mount much of an immune response.” Erica Ollmann Saphire, PhD,
professor, Department of Immunology and Microbial Science, The Scripps Research Institute. The body is left wide open, with no protection. Then Ebola
starts copying itself like crazy, Amarasinghe says. "Multiple viruses can even invade a single cell," he says. "HIV can't even do that." (virologist
Gaya Amarasinghe, of Washington University in St. Louis)
About the need for more scientific research on Ebola: "At what stage of the illness, and in what tissues is Ebola virus shed and may infect others?"
he asked. No studies have been done on that. The research instead has been very product-oriented, focusing on vaccines and other therapies. "Now we
wish we did understand more about the disease," he said.
The human viral shedding is at best an assumption and the data we do have is based entirely on previous outbreaks, well know strand (none or limited
opportunities to mutate). The current genetic sequencing research is telling you it has mutated and continues to do so....this makes the boundaries of
viral shedding as well as questions of when this occurs to the point of being infectious even more presumptuous.
"We don't really have lots of sound data of what period people start shedding virus and from what tissues. And so that would be incredibly valuable
data. What we do have is the epidemiological data, and when we put that together from past outbreaks, it really appears that most infections occur
from very sick people late in the course of their illness"(Dr. Daniel Bausch).
There is some limited data on people that have survived in terms of how long it remains possible to shed the virus.There are many studies from non
Data on the post-recovery viraemic period are limited. Shedding of Ebola virus has been
reported in breast milk and semen after the virus has been cleared from blood . Viable virus has been isolated
from semen up to seven weeks after recovery, and spermatogenic transmission of Marburg virus has been
documented . There is a paucity of data on Ebola virus in human egg cells. The risk of Ebola transmission
should be considered in connection with reproductive cell donations, both for ‘partner’ and ‘other than partner’
However, the evidence that Ebola virus may persist for some time in the human body after recovery from EVD is
insufficient to define a specific deferral period for donors who have recovered from EVD. The current guidance
stipulates deferral for 12 months following recovery from a viral haemorrhagic fever  and this recommendation
also applies to donors who have recovered from EVD. In addition, living or deceased donors of SoHO should have
tested negative for Ebola virus by NAT.
edit on 18-10-2014 by bella2256 because: (no reason given)