Army’s Infectious Disease Research Unit and Discoverer of Ebola Strain Agree
We’ve repeatedly warned that this strain of Ebola might be spread by aerosols.
But there is a fascinating and terrifying wrinkle to this …
You might assume that hot, steamy places would be more likely to spread deadly germs than developed countries. But the opposite might be true.
In 1995, scientists from the US Army Medical Research Institute of Infectious Diseases (USAMRIID)reported in the International Journal of Experimental Pathology:
We also demonstrated aerosol transmission of Ebola virus at lower temperature and humidity than that normally present in sub-Saharan Africa.Ebola virus sensitivity to the high temperatures and humidity in the thatched, mud, and wattel huts shared by infected family members in southern Sudan and northern Zaire may have been a factor limiting aerosol transmission of Ebola virus in the African epidemics. Both elevated temperature and relative humidity (RH) have been shown to reduce the aerosol stability of viruses (Songer 1967). Our experiments were conducted at 240C [i.e. 75 degrees Fahrenheit] and < 40% RH, conditions which are known to favour the aerosol stability of at least two other African haemorrhagic fever viruses, Rift Valley fever and Lassa (Stephenson et a/. 1984; Anderson et a/. 1991). If the same holds true for filoviruses [Ebola is a type of filovirus], aerosol transmission is a greater threat in modern hospital or laboratory settings than it is in the natural climatic ranges of viruses.
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