Herpes - in - space!

Discussion in 'The Watering Hole' started by Winston, Mar 17, 2019 at 3:16 PM.

Help Support The Rocketry Forum by donating:

  1. Mar 17, 2019 at 3:16 PM #1

    Winston

    Winston

    Winston

    Lorenzo von Matterhorn

    Joined:
    Jan 31, 2009
    Messages:
    5,958
    Likes Received:
    159
    Gender:
    Male
    Dormant viruses activate during spaceflight
    March 15, 2019

    https://phys.org/news/2019-03-dormant-viruses-spaceflight.html

    Herpes viruses reactivate in more than half of crew aboard Space Shuttle and International Space Station missions, according to NASA research published in Frontiers in Microbiology. While only a small proportion develop symptoms, virus reactivation rates increase with spaceflight duration and could present a significant health risk on missions to Mars and beyond.

    "During spaceflight there is a rise in secretion of stress hormones like cortisol and adrenaline, which are known to suppress the immune system. In keeping with this, we find that astronaut's immune cells—particularly those that normally suppress and eliminate viruses—become less effective during spaceflight and sometimes for up to 60 days after."

    In the midst of this stress-induced amnesty on viral killing, dormant viruses reactivate and resurface.
    "To date, 47 out of 89 (53%) astronauts on short space shuttle flights, and 14 out of 23 (61%) on longer ISS missions shed herpes viruses in their saliva or urine samples," reports Mehta. "These frequencies—as well as the quantity—of viral shedding are markedly higher than in samples from before or after flight, or from matched healthy controls."

    Overall, four of the eight known human herpes viruses were detected. These include the varieties responsible for oral and genital herpes (HSV), chickenpox and shingles (VZV) - which remain lifelong in our nerve cells—as well as CMV and EBV, which take permanent but uneventful residence in our immune cells during childhood. CMV and EBV, are two viruses associated with causing different strains of mononucleosis or the "kissing disease".
     
  2. Mar 17, 2019 at 3:21 PM #2

    cwbullet

    cwbullet

    cwbullet

    Obsessed with Rocketry Staff Member Administrator TRF Lifetime Supporter Global Mod

    Joined:
    Jan 24, 2009
    Messages:
    20,700
    Likes Received:
    811
    Gender:
    Male
    Location:
    Glennville, GA
    The gift that keeps giving has given again.
     
  3. Mar 18, 2019 at 12:51 AM #3

    Marc_G

    Marc_G

    Marc_G

    Well-Known Member

    Joined:
    Jun 6, 2010
    Messages:
    5,620
    Likes Received:
    29
    Gender:
    Male
    Location:
    Indianapolis Metro Area
    Thank goodness for acyclovir. I have a form of this virus that causes in-the-mouth-and-throat canker sores. My entire childhood was riddled with pain from them; I remember as early as 5 years old suffering with it. I started daily acyclovir in 1994 and the only times I get significant cankers are when for one reason or another I don't keep taking the pills. For obvious reasons it's now rare that I miss a dose! It's amazing though, that we can "stab it with our steely knives but we just can't kill the beast."
     
  4. Mar 18, 2019 at 1:14 AM #4

    tightwad

    tightwad

    tightwad

    Well-Known Member

    Joined:
    Jul 8, 2011
    Messages:
    1,050
    Likes Received:
    16
    I can see it now, NASA's "PIS" program, Prophylactics In Space, as mandatory training for all astronauts!
     
  5. Mar 18, 2019 at 2:03 AM #5

    MClark

    MClark

    MClark

    Well-Known Member

    Joined:
    Jan 21, 2009
    Messages:
    2,174
    Likes Received:
    199
    look up Ice Pirates, Space Herpes
     

Share This Page