Although there has been a natural tendency to concentrate on Sars CoV-2's damage to the respiratory system (it produces obvious pneumonia-like breathing difficulties in many badly-affected patients), evidence is mounting that this particular coronavirus uniquely (?) also attacks the linings (endothelia) of blood vessels (https://medicalxpress.com/news/2020-05-analysis-covid-autopsies-reveals-disease.html). The virus is clearly spread in the air by coughing and taken into the lungs of people nearby (so far, so traditional) but, once in the new host, it can move from the lung alveoli (via the capillaries around them?) into the general vascular system. Once there, it can attack the cells that line the arteries, capillaries and veins. This seems to be why this particular virus can produce a whole range of un-Sars-like symptoms such as blood clotting, strokes, heart-failure, discoloration of the toes and interference with antibody production. Sars CoV-2 appears to be a tougher medical foe than was initially expected!
This blog may help people explore some of the 'hidden' issues involved in certain media treatments of environmental and scientific issues. Using personal digital images, it's also intended to emphasise seasonal (and other) changes in natural history of the Swansea (South Wales) area. The material should help participants in field-based modules and people generally interested in the natural world. The views are wholly those of the author.
Subscribe to:
Post Comments (Atom)
Seeing the Changes 2183
Early ripening fruit may seem convenient but some folk think it confirms environmental stress. There's also a possibility th...
-
It's necessary, where possible, to replace diesel and petrol-fueled vehicles by electrical equivalents. Electric vehicles (EVs) don...
-
Zonal pricing is a proposed change to the UK energy market. It would result in energy consumers paying less for electricity, if they are ba...
No comments:
Post a Comment