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NASA notes that sleeping viruses are activated during space travel

Space travel can be exciting for the viewers from afar, but it brings with it many weird complications as they adapt to the new conditions that never occurred on Earth. Now new research by NASA shows that the in-space system may be able to reactivate dormant viruses.


reactivate herpes viruses

The herpes viruses have been reactivated by more than half of the crew aboard the Space Shuttle and International Space Station (ISS) missions ,

"NASA astronauts endure weeks or even months exposed to microgravity and cosmic radiation – not to mention the extreme G-forces of take-off and reentry Satish K. Mehta of KBR Wyle at the Johnson Space Center.

" This physical challenge is compounded by more well-known stressors such as social separation, inclusion, and a changed sleep-wake cycle. "

Mehta and his colleagues monitor the physiological effects of space exploration by analyzing the astronauts' saliva, blood, and urine samples

"During the space flight, the secretion of stress hormones, such as cortisol and adrenaline, which are known to suppress the immune system, is increasing. Therefore, we find the immune cells of astronauts ̵

1; especially suppressing and eliminating viruses – become less effective during space flight and sometimes up to 60 days later.

These circumstances could be exacerbated by the stressful environment in which the astronauts reside.

"89 (53%) astronauts on short space shuttle flights and 14 out of 23 (61%) on longer ISS – Missions discard herpesviruses in their saliva or urine samples, "Mehta reported.

" These frequencies – as well as the amount – of virus delivery are significantly higher than pre-flight, post-flight, or consistent healthy controls.

The researchers discovered four of the eight known human herpesviruses including oral and genital herpes (HSV), chickenpox and shingles (VZV). [Luckilyforthetimebeingmostofthevirussheddingwasasymptomatic"OnlysixastronautswereviralReactivationofanysymptoms"saysMehta"Allwereinsignificant"

However, it has been found that virus excretion continues after the flight and poses a potential threat to immunocompromised or uninfected humans on Earth.

" Infectious VZV and CMV were shed in body fluids up to 30 days after returning from the International Space Station, "Mehta added.

In addition, the risk increases with increasing long-term mission into space

" The extent, frequency and duration of virus excretion are increasing the length of space flight. "

Required Countermeasures

Mehta arg umentiert that it is necessary to develop countermeasures against this excretion. Ideally, a vaccine would work, but at the moment this only exists for a herpes species; VZV.

"Studies with other herpesvirus vaccines are not very promising, so our focus is currently on developing targeted treatment regimens for those who suffer from the effects of viral reactivation."

"This research has tremendous clinical relevance for patients on Earth Our space-developed technologies for rapid virus detection in saliva have also been used in clinics and hospitals around the world," Mehta concluded.

The study was published in Frontiers in Microbiology. [19659024] (function (d, s, id) {
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